A Primer on Biodiesel

Biodiesel is a clean burning alternative fuel produced from domestic, renewable resources. The fuel is a mixture of fatty acid alkyl esters made from vegetable oils, animal fats or recycled greases. Where available, biodiesel can be used in compression-ignition (diesel) engines in its pure form with little or no modifications. Biodiesel is simple to use, biodegradable, nontoxic, and essentially free of sulphur and aromatics. It is usually used as a petroleum diesel additive to reduce levels of particulates, carbon monoxide, hydrocarbons and toxics from diesel-powered vehicles. When used as an additive, the resulting diesel fuel may be called B5, B10 … Continue reading

وقود الديزل الحيوي

هي الوقت البديلة النظيفة المنجة محليا والتى تعد من الموارد المتجددة  وهذه الوقود عبارة عن خليط من  استرات ألكيل الدهنية حمض مصنوعة من الزيوت النباتية،و  الدهون الحيوانية أو الشحوم المعاد تدويرهاحيثما كان ذلك متاحا، وقود الديزل الحيوي يمكن استخدامها في ضغط الاشتعال (الديزل) محركات في شكله النقي مع تعديلات ضئيلة أو معدومة. وقود الديزل الحيوي هو سهلة الاستخدام، والقابلة للتحلل غير سام، وخالية أساسا من الكبريت والعطريات. عادة ما يتم استخدامه كمادة مضافة الديزل النفطية للحد من مستويات الجسيمات وأول أكسيد الكربون والهيدروكربونات والمواد السامة من السيارات العاملة على المازوت. عندما تستخدم كمادة مضافة، وقود الديزل الناتجة يمكن أن يسمى ب5، ب10 … Continue reading

Algae Biorefinery – Promise and Potential

High oil prices, competing demands between foods and other biofuel sources, and the world food crisis, have ignited interest in algaculture (farming of algae) for making vegetable oil, biodiesel, bioethanol, biogasoline, biomethanol, biobutanol and other biofuels. Algae can be efficienctly grown on land that is not suitable for agriculture and hold huge potential to provide a non-food, high-yield source of biodiesel, ethanol and hydrogen fuels.  Several recent studies have pointed out that biofuel from microalgae has the potential to become a renewable, cost-effective alternative for fossil fuel with reduced impact on the environment and the world supply of staple foods, such as wheat, maize and sugar. What are Algae? Algae … Continue reading

Saudi Arabia Biorefinery from Algae (SABA) Project

The King Abdulaziz City for Science & Technology (KACST) is funding an innovative project called Saudi Arabia Biorefinery from Algae (SABA Project) to screen for lipid hyper-producers species in Saudi Arabia coastal waters. These species will be the basis for next-generation algal biofuel production. The goal of this project is to increase research and training in microalgae-based biofuel production as well algal biomass with an additional goal of using a biorefinery approach that could strongly enhance Saudi Arabia economy, society and environment within the next 10 years. The primary mission of the SABA project is to develop the Algae Based … Continue reading

What are Biofuels

The term ‘Biofuel’ refers to liquid or gaseous fuels for the transport sector that are predominantly produced from biomass. A variety of fuels can be produced from biomass resources including liquid fuels, such as ethanol, methanol, biodiesel, Fischer-Tropsch diesel, and gaseous fuels, such as hydrogen and methane. The biomass resource base for biofuel production is composed of a wide variety of forestry and agricultural resources, industrial processing residues, municipal solid wastes and urban wood residues. The agricultural resources include grains used for biofuels production, animal manures and residues, and crop residues derived primarily from corn and small grains (e.g., wheat … Continue reading

الطحالب – معمل وقود حيوي

اتجهت أبحاث الخبراء والمتخصصين فى الفترة الأخيرة إلى التركيز علي إنتاج الوقود الحيوى من الطحالب الخضراء، خاصة بعد إقرار بدء مرحلة نضوب النفط فى فترة زمنية قريبة، وأنه سينضب أكثر من 95% من مصادر البترول الموجودة على سطح الأرض.   وايضا مشكله الغذاء المحتمل حدوثها في حاله استخدام المنتجات الزراعيه او مخلفاتها في الوقود الحيوي لانتاج منتجات الوقود مثل وقود الديزل الحيوي, الايثانول, الجازولين الحيوي و غيرهم من منتجات الوقود الحيوي. وقد اشارت االعديد من الدراسات الحديثه الي ان الطحالب الخضراء كمصدر للوقود تندرج تحت لواء مصادر الطاقه المتجددة وخاصا بعد التزايد المستمر في سعر الوقود الاحفوري. فهي تنمو بسرعة ولها … Continue reading

Jatropha’s Relevance for MENA

Jatropha is a genus of nearly 175 species of shrubs, low-growing plants, and trees.  However, discussions of Jatropha as a biodiesel are actually means a particular species of the plant, Jatropha curcas. The plant is indigenous to parts of Central America, however it has spread to other tropical and subtropical regions in Africa and Asia. Jatropha curcas is a perennial shrub that, on average, grows approximately three to five meters in height. It has smooth grey bark with large and pale green leaves. The plant produces flowers and fruits are produced in winter or throughout the year depending on temperature … Continue reading

Prospects of Algae Biofuels in GCC

Algae biofuels have the potential to become a renewable, cost-effective alternative for fossil fuels with reduced impact on the environment. Algae hold tremendous potential to provide a non-food, high-yield, non-arable land use source of renewable fuels like biodiesel, bioethanol, hydrogen etc. Microalgae are considered as a potential oleo-feedstock, as they produce lipids through photosynthesis, i.e. using only CO2, water, sunlight, phosphates, nitrates and other (oligo) elements that can be found in residual waters. Algae also produce proteins, isoprenoids and polysaccharides. Some strains of algae ferment sugars to produce alcohols, under the right growing conditions. Their biomass can be processed to … Continue reading

Introduction to Biorefinery

A biorefinery is a facility that integrates biomass conversion processes and equipment to produce fuels, power, and value-added chemicals from biomass. Biorefinery is analogous to today’s petroleum refinery, which produces multiple fuels and products from petroleum. By producing several products, a biorefinery takes advantage of the various components in biomass and their intermediates, therefore maximizing the value derived from the biomass feedstock. A biorefinery could, for example, produce one or several low-volume, but high-value, chemical products and a low-value, but high-volume liquid transportation fuel such as biodiesel or bioethanol. At the same time, it can generate electricity and process heat, … Continue reading

Biofuels in Jordan: Perspectives

Jordan has good biofuels production potential in the form of crop residues, agro-industrial wastes and urban wastes. Biomass energy sector in Jordan is slowly, but steadily, developing. As per a recent World Bank report, the country is currently generating 3.5MW of power from biomass resources which represent 0.1% of the total energy demand in the country. However there is no available data on the amount of biofuels produced in Jordan. Jordan produces significant amount of biofuel feedstock in the form of lignocellulosic biomass, used cooking oil, animal tallow, agro-industrial wastes, industrial effluents etc.  In Jordan, transportation sector alone is responsible of 51% of final … Continue reading

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