PAMUK SAPLARINDAN DEĞERLİ KİMYASALLARIN ÜRETİMİNİN İNCELENMESİ
Project no. 726 · Status: Kapanmış · 2016
Summary
Almost ninety percent of the World Energy consumption is supplied by coal, crude oil and natural gas. In the same manner, chemical industry also consume fossil reserves in order to produce main, mid and final products. The limited reserves of the fossil fuels is exhausted in a large extent. In addition to this, CO2, SO2 and NOx gases are the main reason of the air pollution. Lignocellulosic biomass is accepted to be the most important resources so as it can be able to overcome to fossil fuel dependence and to reduce environmental pollution. Intensive research studies are carried out on conversion of this big potential via chemical and biochemical processes to liquid, gas and miscellaneous chemicals. According to one of the present methods of chemical conversion, cellulose and hemicellulose parts of the plant biomass can be converted to levulinic acid (LA) by hydrolysis, dehydration and rehydration reactions in the presence of acidic medium. In this project, production conditions of the levulinic acid from cotton stalk have been investigated. In the same manner, H2SO4, HCl and HNO3 have been used as catalyst for the production of levulinic acid by hydrolysis, dehydration and rehydration. The effect of reaction temperature (160, 200 and 240 oC), pH ( 1.0, 1.5, 2.0, 2.5),on maximum levulinic acid yield have been investigated. Evolution of liquid part and their variations with respect to reaction parameters will be determined using of HPLC and TOC-SSM devices via related analysis. Percentage conversion and yield of levulinic acid (LA) will also be calculated.