(587t) Biomass Pretreatment With Ionic Liquids
AIChE Annual Meeting
2013 AIChE Annual Meeting
Sustainable Engineering Forum
Poster Session: Sustainability and Sustainable Biorefineries
Wednesday, November 6, 2013 - 6:00pm to 8:00pm
Three ionic liquids (1-ethyl-3-methylimidazolium acetate (EMIM-AC), 1-ethyl-3-methylimidazolium diethyl phosphate (EMIM-DEPO4) and 1,3-dimethylimidazolium methyl sulfate (DMIM-MeSO4)) were used to investigate the influences of the factors on the process of biomass pretreatment. In addition, biomass has a variety of structure and different proportions of cellulose, hemicellulose and lignin. Thus, two types of biomass, cassava pulp residue and rice straw, were used as a potential precursor in this study for the bioconversion process. Cassava pulp residue is a solid residue produced from the process of starch production. Almost all of cassava pulp residue is utilized as a low-price carbohydrate source for livestock food. Thus, the high contents of polysaccharides, including starch with cellulose and hemi-cellulose, 1 make this a low cost raw material more attractive for producing a variety of valuable products through the application of the bioconversion process. Rice straw is a major agricultural by-product derived from harvesting rice. It is one of the most abundant lignocellulosic waste materials in the world (about 731 million tons are produced per year) 2-3. A significant amount of the rice straw produced every year remains unused/discarded or burned in open field, resulting in air pollution or fire hazards.
1. T. Srinorakutara, L. Kaewvimol and L. Saengow, J. Sci. Res. Chula. Univ., 2006, 31, 77-84.
2. D. K. Subramanian, ed., Biochemical conversion of rice straw into bioethanol - an exploratory investigation., 2011.
3. D. K. Subramanian, 2011. [Online]. Available: http://www.compete-bioafrica.net/events/events2/seminar_india/ppt/4-5-Subramanium.pdf.