Lignocellulosic Biobutanol as Fuel for Diesel Engines

Abstract

Energy recovery of lignocellulosic waste material in the form of liquid fractions can yield alcohol-based fuels such as bioethanol or biobutanol. This study examined biobutanol derived from lignocellulosic material that was then used as an additive for diesel engines. Biobutanol was used in fuel mixtures with fatty acid methyl ester (FAME) obtained by esterification of animal fat (also a waste material) in the amounts of 10%, 30%, and 50% butanol. 100% diesel and 100% FAME were used as reference fuels. The evaluation concerned the fuel's effect on the external speed characteristics, harmful exhaust emissions, and fuel consumption while using the Non-Road Steady Cycle test. When the percentage of butanol was increased, the torque and the power decreased and the brake specific fuel consumption increased. The main advantage of using biobutanol in fuel was its positive effect on reducing the fuel's viscosity.

Advances in Environmental, Economic and Social Assessment of Energy Systems

“…The advantage of butanol is its ability to reduce the viscosity of composite fuels, especially when mixed with FAME or crude vegetable oil [62][63][64][65].…”

“…The results of laboratory tests aimed at determining the impact of a mixture of butanol derived from lignocellulosic material and FAME based on animal fat on specific fuel consumption and CO 2 , CO, NO, HC, and PM emissions of a diesel engine are available in the literature [62,66].…”

“…In [62], biobutanol derived from lignocellulose material was tested, which was then used as an additive for diesel engines. Biobutanol was used in fuel mixtures with FAME in the amount of 10%, 30%, and 50% butanol.…”

Xylanase production from a new strain of Aspergillus terreus S9 and its application for saccharification of rice straw using combinatorial approach

“…Ever-increasing world energy-demand, depleting fossil fuel reserves, and growing environmental concerns motivated a tremendous research impetus on development of renewable energy sources [1,2]. Lignocellulosic biomass (LB) represented mainly by agricultural/forestry residues are the most plenteous feed stock that can be exploited for production of energy and high value specialty chemicals [3].…”

“…Rice straw is one of the most abundant agricultural wastes in tropical countries (e.g., India, China) that can be exploited for production of ethanol-biofuel and other industrial products [9,16,17]. The cellulosic and hemicellulosic contents of rice straw can be enzymatically hydrolyzed only after appropriate pretreatments [2,9]. However, unavailability of suitable pretreatment regime and/or ace saccharifying enzymes pose big challenge for bioconversion of rice straw polysaccharides into simple sugars for microbial fermentation [1,9,17].…”