Research Of Catalytic Effects Of Two Kinds Of Inorganic Additives On Biomass Pyrolysis

In today's society, energy is one of the key factors of restricting the economic development. Biomass energy is a renewable energy that is clean and sustainable development.Developing biomass pyrolycic technology to obtain valuable chemicals and biofuel to completely or partly replace fossil energy has far-reaching significance for protecting the environment and realizing the rapid development of human society.This paper adopts pine, fir and cellulose as raw material for regular pyrolysis reaction(using Na2CO3, Fe2(SO4)3 as additives).The gaseous,liquid and solid of pyrolysis products,the moisture content of liquid product and the organic components of liquid product were invested under the two additives. The effectiveness of reuse of additives on above all aspects were considered too. Along with the increase of additives percentage, gaseous product yield was first increased then decreased,but the liquid product yield is just the opposite,and the solid product yield decreased gradually. The gas production yield was increased with the additives added. But at the same time the CH4 and H2 contents of the gaseous product were reducesed to some extent, which reduced the quality of the pyrolysis gas. The moisture content of liquid product under the additives (Na2CO3, Fe2 (SO4)3) was higher than that from untreated sample. This showed that the two kinds of additives can promot the dehydration process in pyrolysis reaction of three raw materials.And the results of pyrolysis with the reuse of additive were basically similar to the above conclusions, this showed the stability of additives was not be destroyed in pyrolysis process. This provided experimental basis for the reused additives in the pyrolysis experiment. Reuse of additives in pyrolysis experiments are both economical and friendly to environment.