Search results
Results from the WOW.Com Content Network
In biodiesel it says oil palm produces 5940 litres per hectare (635 USgal/acre) of palm oil each year. To make 180 billion US gallons (680,000,000 m 3) of vegetable oil each year would require 1,150,000 square kilometres (440,000 sq mi) or a square of land 1,070 kilometres (660 mi) on a side. "The gradual move from oil has begun.
Biofuels include bioethanol, an alcohol made by fermentation—often used as a gasoline additive, and biodiesel, which is usually used as a diesel additive. Specific energy is energy per unit mass, which is used to describe the chemical energy content of a fuel, expressed in SI units as joule per kilogram (J/kg) or equivalent units. [1]
The two most common types of biofuel are bioethanol and biodiesel. Brazil is the largest producer of bioethanol, while the EU is the largest producer of biodiesel. The energy content in the global production of bioethanol and biodiesel is 2.2 and 1.8 EJ per year, respectively. [17]
In second-generation biofuels applications forest and agricultural residues, wood waste and energy crops can be used as feedstock to produce e.g. bio-oil for fuel oil applications. Bio-oil typically requires significant additional treatment to render it suitable as a refinery feedstock to replace crude oil.
The United States produces mainly biodiesel and ethanol fuel, which uses corn as the main feedstock.The US is the world's largest producer of ethanol, having produced nearly 16 billion gallons in 2017 alone. [1]
India is extending plantations of jatropha, an oil-producing tree that is used in biodiesel production. The Indian sugar ethanol program sets a target of 5% bioethanol incorporation into transport fuel. [26] China is a major bioethanol producer and aims to incorporate 15% bioethanol into transport fuels by 2010.
Biofuel development and use is a complex issue because there are many biofuel options which are available. Biofuels, such as ethanol and biodiesel, are currently produced from the products of conventional food crops such as the starch, sugar and oil feedstocks from crops that include wheat, maize, sugar cane, palm oil and oilseed rape.
Production of oil/biodiesel from rape covers more than 12,000 km 2 in Germany alone, and has doubled in the past 15 years. [10] Typical yield of oil as pure biodiesel is 100,000 L/km 2 (68,000 US gal/sq mi; 57,000 imp gal/sq mi) or higher, making biodiesel crops economically attractive, provided sustainable crop rotations are used that are ...