Biofuels for Transport: An International Perspective by OECD Publishing

By OECD Publishing

Within the absence of robust govt guidelines, the IEA initiatives that the global use of oil in delivery will approximately double among 2000 and 2030, resulting in the same elevate in greenhouse gasoline emissions. Bio fuels, equivalent to ethanol, bio diese

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Feedstock and process technologies The Cellulosic Biomass-to-Ethanol Production Process The first step in converting biomass to ethanol is pre-treatment, involving cleaning and breakdown of materials. g. acid hydrolysis) processes is typically applied, which allows separation of the biomass into its cellulose, hemicellulose and lignin components. Some hemicellulose can be converted to sugars in this step, and the lignin removed. Next, the remaining cellulose is hydrolysed into sugars, the major saccharification step.

It co-ordinates the work of national programmes across the wide range of bioenergy technologies and has 19 countries participating. The network covers all aspects of bioenergy, and their ongoing task on liquid biofuels involves working jointly with governments and industry to identify and eliminate non-technical environmental and institutional barriers that impede the use of liquid fuels from biomass in the transport sector. ca/task39). Another relevant network is the IEA Implementing Agreement on Advanced Motor Fuels.

The Grain-to-Ethanol Production Process The grain-to-ethanol production process starts by separating, cleaning and milling (grinding up) the starchy feedstock. Milling can be “wet” or “dry”, depending on whether the grain is soaked and broken down further either before the starch is converted to sugar (wet) or during the conversion process (dry). In both cases, the starch is converted to sugar, typically using a high-temperature enzyme process. From this point on, the process is similar to that for sugar crops, where sugars are fermented to alcohol using yeasts and other microbes.

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