Showing posts with label Biofuel. Show all posts
Showing posts with label Biofuel. Show all posts

Tuesday, August 2, 2011

Potential Anti-Cancer Drug Used as Biofuel

Potential Anti-Cancer Drug Used as Biofuel

Jatropha curcas is the name of a castor oil plant that would have little meaning to us because it is not a food, or a commonly used medicinal plant. However, it is a plant that could play a significant role in global health if it was explored enough to challenge the plantations of Jatropha curcas being cultivated for the sole purpose of biofuels.
Jatropha curcas is a plant native to Africa, Asia, and South America, and has become naturalized in South Egypt. It is a low growing tree that produces seeds within a year, can keep on producing seeds for up to 5 years, the plant is useful for up to 50 years, the seeds produce 37% oil, the kernels 60% oil, and the seeds can yield 0.75 to 2 tons of biodiesel per hectare. If all eyes are on its production level at  time when looking to turn a fast profit for a growing market despite being unsustainable then Jatropha curcas is the plant to process.
Afforestation
Jatropha curcas is one of those plants that can grow anywhere quite literally, no matter how poor the quality of the soil. In the winter months, the leaves shed to form a mulch around the plant which increases the activity of earth worms, the creatures that turn the soil improving soil fertility. In fact, Jatropha curcas is known for its ability to stop soil erosion, and to prevent the shifting of sane dunes.
Other Uses
The high saponification content of the oil has found its way into the production of soaps, and as a smokeless illuminate. Research by the Food and Agricultural Organization has shown that the alkaloid, jatrophine to contain anti-cancerous properties, and to be extremely beneficial for skin diseases, rheumatism, and sores when applied to the skin of livestock. The twigs are good for cleaning the teeth, and the juice from the leaf is good when applied externally to piles. The roots have been used an antidote for snake bites, and the bark as a dye. The FAO have also found that:
  • Jatropha oil cake is rich in nitrogen, phosphorous and potassium and can be used as organic manure.
  • The seeds are considered anthelimintic in Brazil, and the leaves are used for fumigating houses against bed-bugs.
  • The ether extract shows antibiotic activity against Styphylococcus aureus and Escherichia coli.
In Indonesia, the idea “Treat the jatropha plant as well as possible to make the harvest as large as possible!” was promoted as the oil was used to lubricate machinery for the Japanese WWII effort, and as well as for fuel.
Jatropha Oil as Biofuel
Sun Biofuels of Mozambique are boasting their first batch of 30 tonnes of unrefined Jatropha Oil from the province of Manica. Using 3,000 hectares, and only employing a 1,000 workers, a tonne on the international market goes for US$900 and US$950 although the company has yet to make revenue. Once exported, the real profit will be made, as Jatropha Oil  is turned into a biosynthetic kerosene. Sun Biofuels is a subsidiary of the U.K.-based Sun Biofuels. This batch will be tested on Lufthansa planes, as burning of Jatropha oil requires no modification to engines.
It takes 100 kilos of Jatropha seeds to produce 35 liters of oil. In India, the average agriculturalist earns U.S.$40 per month when biodiesel is 16-20p per litre. Four hectares can be managed by 1 employee, while 1 hectare of Jatropha yields annually 25,000 Rupees/£300.
The residue from oil production could be used as fertilizer, feedstock and for fuel, skin friendly soap, but the soil erosion factor is compromised by the continual harvesting of the trees. Irrelevant to corporations Daniels Midland Company, Bayer CropScience and Daimler AG have been working jointly on Jatropha.
However, as easy as Jatropha is to grow, with changing climatic conditions, nothing can be guaranteed as Jatropha needs a minimum of 600 mm of rain annually to thrive, but can survive 3 years in a drought.
In fact, if Jatropha can be cultivated amongst cash crops, there is  a greater argument for the mass plantation of Jatropha in famine hit regions, for the domestic consumption of the oil as cooking fuel, feedstock, veterinary medicine, and as biofuel for local consumption. Famine struck communities can also benefit from trade by producing organic skin friendly soap, antibacterial (especially as Jatropha is effective against Escherichia coli infection which is so prevalent in the west) and anti-cancerous medicines.
Sources:
Mozambique: First Exports Of Bio-Fuels To European Markets http://www.bernama.com/bernama/v5/newsworld.php?id=603508
http://trademarksa.org/news/mozambique-first-exports-bio-fuels-european-markets
Reyadh, M. “The Cultivation Of Jatropha Curcas In Egypt.” http://www.fao.org/docrep/x5402e/x5402e11.htm

Saturday, April 23, 2011

Commercialization of biodiesel in Pakistan

Commercialization of biodiesel in Pakistan

 
By Faizan Wazir and Asia Noshin
WITH THE exception of hydroelectricity and nuclear energy, the majority of the worlds energy needs are supplied through petrochemical sources, coal and natural gas. All of these sources are finite and at certain usage rate will be consumed by the end of the next century. The depletion of the world petroleum reserves and increased environmental concerns has stimulated recent interest in alternative sources for petroleum based fuels. Biodiesel has arisen as a potential candidate for the diesel substitute due to the similarities it has with petroleum based diesel.
Biodiesel defined as “a substitute for, or an additive to Diesel fuel that is derived from the oils and fats of plants and animals” or monoalkyl esters of long chain fatty acids derived from a renewable lipid feedstock, such as vegetable oil or animal fat, is becoming popular in developing countries as well as developed ones.
The European Union has set an objective to secure a market share for motor biofuels of 20% of the total motor fuel consumption by 2020. Fossil diesel blended with 20% biodiesel produced from soybean oil is available in the US market. Developing renewable energy is a national strategy of Pakistan, which does not have plentiful fossil oil deposits. Pakistan as a big developing country with rapid economic growth needs more energy than before. The oil sector is looking for indigenous sources to reduce its dependence on imported crude oil and there can be no better source than ethanol and Biodiesel.
The major hurdle in commercialization of this renewable motor fuel in countries like Pakistan is high cost of oil, reagents and equipments, non availability of good quality raw material and lack of expertise in this field.
Pakistan has wide resources of both edible and non edible oil yielding plants. Among edible oil yielding plants cotton, canola, sun flower, sesame, linseed, safflower and soybean are important while among non edible oil plants castor seed, jatropa, jojoba, different species of acacia, pongammia pinata and many halophytes are common. Although, Pakistan already face shortage of edible oil, but by making proper arrangements and bioengineering of the crops yielding non edible oil, will help in the production of biodiesel on large scale with in the country.
Experiments shown that biodiesel derived from non edible oil seeds can be used in the designs of diesel vehicles. It will also result in the utilization of waste land, drought proofing and energy security for the country. The commercialization of biodiesel in our country will lead to employment generation especially in rural areas and thus will help in reduction of poverty. Moreover, the availability of this fuel will open a new market for oil and fats in country so that both local and foreign investors will be attracted to make investment in this new field. Thus, it will also help in establishment of country economy.
Pakistan at present imports crude oil worth billions of dollars every year to fulfill the demand from consumers like factories and vehicles. By commercialization this renewable fuel; Pakistan dependency on foreign countries for petroleum import will be reduced. Moreover, the main advantage of renewable fuel is of its environment friendliness and all the exhaust gasses emitted are photosynthetic and will not affect the green house.
For commercialization of biodiesel, Government of Pakistan has to take some serious steps. The most important of which is the good advertisement of this beneficial fuel throughout the country. Government should facilitate the people which are interested in this field. It is important that government should advise the oil and gas sector to make blend of 20% biodiesel with petro diesel. Thus, on one hand pollution rate will be reduced and on the other hand our dependency on petroleum import will be decreased which is the need of hour.
Pakistan has vast areas which are not cultivable including sea shores, desserts, saline and waterlogged soils. It has been found that these areas are quite fertile for many xerophytes and halophytes which yield non edible oil and can contribute to commercial biodiesel production.
Research in the fields of biodiesel is in progress throughout the world and also on small scale in Pakistan. Although Pakistan is much backward in this field, yet in some institutes and universities small scale research is in progress. The main aim of research in this field is the development of suitable and cost effective materials and methods, improving the standard of existing raw materials in order to reduce cost benefit ratio. If our government takes serious steps and facilitates the research institutes, one can easily figure out that the day is not far away when our vehicles will run on this renewable and environment friendly fuel.

National Biodiesel Program

National Biodiesel Program

source: http://www.aedb.org/bioprogram.htm

 
Realizing the importance of Biodiesel, AEDB outlined National Biodiesel Programme and decided to assist & facilitate the stakeholders involved for this purpose. AEDB formulated Policy Recommendations for use of Biodiesel as an alternative fuel which are primarily aimed at reducing the country’s fuel import bill. The Economic Coordination Committee (ECC) of the Federal Cabinet has approved the Policy Recommendations for use of Biodiesel as an Alternative Fuel in its meeting held on 15th February 2008 Click here to download the Policy Recommendations.
Biodiesel Advisory Committee.
Alternative Energy Development Board (AEDB) has been declared as the apex agency by the Federal Government to coordinate and facilitate the National Biodiesel Programme. In continuation to the efforts for the realization of National Biodiesel Programme, AEDB coordinated with the relevant stakeholders and formed an advisory committee to steer the National Biodiesel Programme.
Biodiesel Advisory Committee comprises the following stakeholders:
  1. Alternative Energy Development Board (Chair)
  2. Representative from Ministry of Food & Agriculture (Member)
  3. Representative from Ministry of Petroleum & Natural Resources (Member)
  4. Representative from Pakistan Agricultural Research Council (Member)
  5. Representative from Pakistan State Oil Company Ltd. (Member)
SRO 474 (I)/2008.
After the approval of Policy Recommendations for the use of Biodiesel as an alternative fuel, SRO 474 (I)/2008 for the exemption of taxes and duties on Biodiesel related equipment, machinery and other specific items was issued by Federal Board of Revenue (FBR) Click here to download the SRO.
Pakistan State Oil Company Ltd.
AEDB has successfully engaged Pakistan State Oil (PSO) for furthering the National Biodiesel Programme. PSO has established Alternate Energy Department at their Head Office in Karachi. PSO has established a Jatropha Nursery and a Jatropha Model Farm at 22 acres land available at Pipri Marshalling Yard (PMY), Karachi.AEDB also provided a Biodiesel production plant to PSO for the optimization of Biodiesel processing techniques. PSO has processed and tested different Biodiesel blends on its fleet vehicles and generators.
Seminar on National Biodiesel Programme.
AEDB organized a Seminar on “National Biodiesel Programme: Identification of Barriers” on 10th July 2009 at Islamabad. The Seminar was aimed to gather the public and private sector stakeholders in order to identify the barriers that need to be successfully addressed to propagate the National Biodiesel Programme on a commercial scale. These include feedstock options, regulations for certification of seeds opted for Biodiesel production, selection of appropriate land for energy plantations, buyback arrangements and pricing mechanism for Biodiesel & its various blends with mineral diesel. The recommendations of the Seminar will assist in consolidating the Policy & Regulatory Framework for Biodiesel currently being formulated by AEDB.
By organizing this Seminar, AEDB has made an attempt to highlight and discuss the important issues which need to be seriously considered by the Policymakers to ascertain that the National Biodiesel Programme becomes a success story.
Feasibility Study for Setting up Biodiesel Production Facility.
The Federal Government has assigned AEDB the target of gradual introduction of Biodiesel fuel blends with Petroleum diesel so as to achieve a minimum share of 5% by volume of the total diesel consumption in the country by the year 2015 and 10% by 2025. For this purpose, AEDB got approved a PC-II for undertaking a Feasibility Study to set up 10,000 Tons per Annum Biodiesel Production Facility. Funding for undertaking the feasibility study is being awaited.
Pakistan’s first ever Commercial Biodiesel Refinery.
Pakistan’s first ever commercial Biodiesel production facility has been setup in Karachi by M/s Eco-Friendly Fuels Private Ltd. This Biodiesel refinery has a capacity of producing 18,000 Tons of Biodiesel per annum.
Jatropha Cultivation in Pakistan. Experimental cultivation of Biodiesel feedstock on scientific basis has also been started. The cultivation has now risen from around 2 acres in 2005 to more than 700 acres in 2010. This surge in Jatropha cultivation is mainly based on aggressive campaign undertaken by AEDB. A number of institutions imported Jatropha seeds for germination from variety of sources and countries. They have been growing such nurseries at various sites in Sindh, Punjab and Balochistan

The New Role of Microbes in Bio-Fuel Production

The New Role of Microbes in Bio-Fuel Production

Source:PSC Blog

Currently biofuel is produced from plants as well as microbes. The oils, carbohydrates or fats generated by the microbes or plants are refined to produce biofuel. This is a green and renewable energy that helps in conserving fossil-fuel usage. But a new research has led to a new discovery of getting the microbes to produce fuel from the proteins instead of utilizing the protein for its own growth. The research is being done at the premises of University of California in Los Angeles.
microbes-biofuel
microbes-biofuel
Focus
The focus of the experiment was to induce the microbes under the study to produce a specific kind of proteins rather than what they otherwise might be inclined to produce. This special protein can be refined in to biofuel. The task is to make the microbes produce only this kind of protein rather than utilizing it for their own growth and growth related activities as they otherwise do.
Different from prior practice
This kind of biofuel production is different from the traditional behavior of microbes where they use the protein only for growth. This is like tricking the microbes to deviate from that and produce fats or material that can be converted to biofuel. In the words of UCLA postdoctoral student and lead researcher, Yi-xin Huo -”We have to completely redirect the protein utilization system, which is one of the most highly-regulated systems in the cell.”
First attempt at protein utilization
This has been claimed as the first ever attempt to use the proteins as a source for generating energy. Until now the biofuel-producing algae has not made use of the protein like a carbon supply for biofuel. It was only used for growth. But now the scientists have tampered with usual nitrogen metabolism process and induced biorefining process and altered the metabolizing of nitrogen at the cellular level.
A fringe benefit
By this process, they are letting the cells to retain the nitrogen and take out just the ammonia. Once done with the biofuel production, the residue is a better kind of fertilizer thanks to the low nitrogen levels. This in turn will lessen any greenhouse emissions that happen during the fertilizer production. The new process will reprocess the nitrogen back and will help in maintaining a nitrogen neutral state and less harmful emissions during fertilizer production.
Future plans
The Nature Biotechnology Sunday issue has published the team’s findings. The team hopes that their findings will rewrite biofuel production by inundating the field with protein eating microbes which will generate fats and substances that can be converted into biofuel. The microbes will feed on proteins that are not fit for animal consumption and keep producing special proteins for biofuel conversion and later can become a better type if fertilizer with less nitrogen and nil harmful greenhouse emissions.

Viewing Biofuel Prospects in Pakistan



SDPI Research and News Bulletin
Vol. 14, No. 3 July—September 2007

Source:www.sdpi.org/help/research_and_news_bulletin/.../bulletin.doc

Viewing Biofuel (Ethanol) Prospects in Pakistan Through a Sustainable Development Prism
Shaheen Rafi Khan
shaheen@sdpi.org

The Climate Change 2007 Fourth Assessment Report (FAR) has muffled the sceptics. The current findings replace speculation with scientific certainty -- in fact, the reality has overtaken modelled forecasts. Planet Earth is heating up faster than predicted, with extreme events in their several manifestations spiralling out of control. Glacier retreat, polar ice meltdowns, rises in sea levels, tropical cyclones, storms and hurricanes have triggered natural and human calamities on an unprecedented scale. There is a corresponding urgency to address both the causes of climate change (mitigation) and its effects (adaptation). 
Renewable energy in general, and biofuels in particular, have begun to look like an increasingly viable mitigation option. The “bio” in biofuels refers to crop and wood-based raw materials such as molasses, rice husks, corn and wood waste, which are processed into fuel. For developed countries, biofuels offer prospects for meeting their emission reduction commitments under the Kyoto Protocol. For developing countries, biofuels present a means to both reduce energy import bills as well as earn precious foreign exchange. However, reconfiguring the fuel economy to renewable sources is not without risks. Global environmental benefits can also generate adverse local environmental impacts. Similarly, multinational corporations giving price incentives to farmers, to switch from growing food crops to biofuel crops, can threaten food security.
The rapid uptake of biofuels reflects the ease with which they can replace or be blended with fossil fuels, such as petrol and diesel. The technology is simple, cost effective and environmentally friendly. The blended fuels provide a higher octane content, improving vehicle efficiency while reducing carbon emissions.  Developing countries also enjoy a cost advantage; they experience year around growing seasons, can access cheap farm labor, and use crop by-products to fertilize fields and fire up distilleries. For instance, Brazil is able to sell ethanol at the equivalent of US$ 25 a barrel, compared to US $50 and US $70 for the US and Europe, respectively.    
Not surprisingly, many countries have adopted biofuels as a way to reduce their oil bills and/or to earn foreign exchange. Thailand is building over a dozen ethanol plants using sugar cane and rice husks as fuel sources. China has constructed the world's largest fuel ethanol facility at Jilin. Beijing is reportedly planning to import Brazilian ethanol as well. Japan has already gone that route; it signed its first 15 million-litre deal with Brazil in May 2006 preparatory to replacing up to 3 percent of Japan's gasoline.
Yet this emerging global market in biofuels is not clear of the political thicket. Developed-country farm lobbies lend momentum to biofuels market development, but they also demand protectionist barriers. "Everyone pretends [their enthusiasm] is for the environment, but it's all about agricultural subsidies," biofuels expert Christian Delahouliere warns. To encourage biofuels, the EU pays farmers 45 euros for each hectare of "energy crops" they grow. That provides them a powerful incentive to produce, effectively barring cheap foreign bioethanol from entering their market. When Pakistan gained special access to EU markets in 2002 and began shipping bioethanol, local farm lobbies persuaded Brussels to change course and re-establish tariffs. The United States also imposes a 50-cent-a-gallon import duty on Brazilian ethanol. In addition, almost every country has its own biofuel standard, with different specifications that may be manipulated to hinder market access.
In this article, we evaluate the biofuel prospects in Pakistan in a sustainable development context. The specific biofuel is ethanol extracted from molasses, a by-product of sugar. The potential for producing biofuels from corn, rice husks and wood waste exists but has not been tapped yet. We also examine the external and internal policy constraints which have prevented domestic ethanol production from taking off.

Production trends in Pakistan
The sugar industry in Pakistan is the second largest after textiles. Currently, 76 sugar mills produce at or below capacity.  From a production level of 2.89 million tons in 1991-92, production reached 4 million tons in 2003-04. Yet the production potential is not realized because sugarcane yields remains well below the global average. Also, despite sugar prices doubling since 1992, Pakistan continues to remain globally uncompetitive. The emerging markets in industrial alcohol and fuel ethanol offer prospects of making sugarcane production economically viable.
About 80-85 percent of the total sugarcane production goes towards the production of sugar. The remaining 15-20 percent is converted into gur, a local variant of sugar, which is largely produced and consumed in the North West Frontier Province (NWFP). Cane crushing produces sugar and molasses as a by-product. The molasses-to-bioethanol conversion process is conducted in distilleries. Currently, 21 distilleries produce industrial alcohol in the country.
The majority of the distilleries are a part of the sugar mills and are situated on-site, making the production cycle an integrated one. The mills receive the cane, crush for sugar, store the molasses in storage tanks on-site, and then pass it on to the distilleries for industrial alcohol production. Industrial alcohol can be converted into fuel alcohol in a simple process by using molecular sieve technology, which requires a capital expenditure of about USD 1.5 million and can be completed in 5 to 6 months.  As many as 8 distilleries have installed the sieve technology to process industrial ethanol into fuel ethanol.

Common Algae for Biofuel Butanol Production

Common Algae for Biofuel Butanol Production

There have been various methods tried for reducing fossil fuel dependency and containing carbon footprints for a healthier and more eco-friendly future. Corn-produced ethanol has been used for mixing with gasoline but there have been side effects like corrosion from ethanol. Also huge tracts of precious farmlands need to be diverted for corn production. But now new research has thrown up results that show common algae can be used for biofuel production. 

New Research

There has been research going on in University of Arkansas by a group of chemical engineers and research students of Honours College led by Asst. Professor & Project Leader, Jamie Hestekin. The focus is on converting the common algae into renewable fuel which can be used in automobiles with combustible type engines. The research is done on algae which survive on nitrogen, phosphorous, sunlight and carbon dioxide; and from which, organic acids and subsequently biofuel is produced.
Growing algae on ‘raceways’
Long trench-like troughs – about two-foot wide and variable lengths are used for cultivating the algae. On a base of screens or carpet – actually any base works – they let normal river water to run in the troughs. The nitrogen and phosphorous in the water helps a lush growth of algae in sunlight which further receives carbon dioxide delivered in high doses via hollow long fibers. The algae can be harvested every 5-8 days and they keep growing afresh after harvest.
Butanol production made easy
Scraping the algae, drying it, carbohydrates are extracted which are converted to natural sugars. Then via fermentation process, sugars are converted into butyric, lactic and acetic acids. Again butyric acid is converted by fermentation into butanol. This process was made speedier by a special technique called electrodeionization – a process developed by a team member. This makes the entire fuel conversion process faster and less costly.
Utilizing existent ‘dead-zone’ cleaning
Water authorities in municipalities and state departments have been trying to clean up what is commonly called as ‘dead zones’ – water laden with overload of nitrogen and phosphorous which kill the aquatic flora and fauna, and fish etc. They purify and oxygenate the existent water-ways by removing the excess fertilizer run-off nitrogen and phosphorus. And common algae cultivation can be done side by side with the above cleaning process as is done in Rockaway Wastewater Treatment Plant in Queens where the research team and New York City Department of Environmental Protection are working in tandem.
Advantages of the new process
The new conversion process is less expensive and definitely more efficient. Apart from the fact that butanol is far superior to ethanol in efficiency, this process helps the water become less polluted and healthier. The algae use the extra nitrogen and phosphorous in the existent water and make it safer for marine flora and fauna. As Hestekin puts it succinctly, “the coolest thing about this process is that we’re actually making rivers and lakes healthier by growing and harvesting the raw material.”

Source: http://www.alternative-energy-news.info/common-algae-biofuel-butanol-production/

 

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