title: Production of aromatic hydrocarbons by catalytic pyrolysis of microalgae with zeolites: catalyst screening in a pyroprobe.
abstract: Catalytic pyrolysis of microalgae and egg whites was investigated to evaluate the performance of different zeolites for the production of aromatic hydrocarbons. Three zeolites with different structures (H-Y, H-Beta and H-ZSM5) were used to study the effect of catalyst type on the aromatic yield. All three catalysts significantly increased the aromatic yields from pyrolysis of microalgae and egg whites compared with non-catalytic runs, and H-ZSM5 was most effective with a yield of 18.13%. Three H-ZSM5 with silica-to-alumina ratios of 30, 80 and 280 were used to study the effect of Si/Al ratio on the aromatic yield. The maximum yield was achieved at the Si/Al ratio of 80, which provides moderate acidity to achieve high aromatic production and reduce coke formation simultaneously. Aromatic production increased with the incorporation of copper or gallium to HZSM-5. However, other studied metals either had no significant influence or led to a lower aromatic yield.
authors: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, United States.
authors: Zhenyi
authors: Z
authors: Du
authors: Xiaochen
authors: X
authors: Ma
authors: Yun
authors: Y
authors: Li
authors: Paul
authors: P
authors: Chen
authors: Yuhuan
authors: Y
authors: Liu
authors: Xiangyang
authors: X
authors: Lin
authors: Hanwu
authors: H
authors: Lei
authors: Roger
authors: R
authors: Ruan
mesh_terms: D000535:Aluminum / Q000494:pharmacology; D002384:Catalysis / Q000187:drug effects; D048408:Chlorella vulgaris / Q000187:drug effects / Q000378:metabolism*; D004529:Egg White; D006358:Hot Temperature; D006841:Hydrocarbons, Aromatic / Q000378:metabolism*; D058086:Microalgae / Q000187:drug effects / Q000378:metabolism*; D012825:Silicon / Q000494:pharmacology; D017641:Zeolites / Q000494:pharmacology*
chemical_list: D006841:Hydrocarbons, Aromatic; D017641:Zeolites; D000535:Aluminum; D012825:Silicon