文献类型：期刊文献

英文题名：Effect of Catalysts on the Yields of Light Components and Phenols Derived from Shenmu Coal Low Temperature Pyrolysis

作者：Le, Jiawei[1];Liu, Peng[1,3];Liu, Dingchao[1];Lu, Xilan[1];Pan, Tieying[2];Zhang, Dexiang[1]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Dept Chem Engn Energy Resources, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Anal & Res Ctr, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Natl Inst Clean & Low Carbon Energy, Beijing 102209, Peoples R China

年份：2017

卷号：31

期号：7

起止页码：7033

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：20173003988499);WOS:【SCI-EXPANDED(收录号:WOS:000406356600038)】；

基金：The authors are grateful to the National Key R&D Program of China (2016 YFB0600303) for their financial support.

语种：英文

外文关键词：Catalytic cracking - Potash - Tar - Coal - Cracks - Zeolites - Chemical analysis - Temperature

摘要：The pyrolysis of Shenmu coal with three physically mixed additives (USY zeolite, CaO, K2CO3) was studied in a quartz tube reactor at a heating rate of 5 degrees C/min from room temperature to 600 degrees C for 15 min. Adding all three additives significantly increases the fraction of light components in tar while decreasing the total tar yield. The yield of light components in the tar had the highest increase from 9.5 to 11.1 wt % on daf coal by adding 1 wt % USY zeolite. The GC/MS analysis of the tar shows that the contents of both phenol and alkyl-phenols have the largest increase with the addition of USY zeolite. The C-13 NMR analysis of chars indicates that the increase of total phenol content in the tar is attributed to the catalytic cracking of aromatic oxygen carbon in coal structure. The cracking effect of USY produced more CH radicals that lead to the alkylation of phenols in tar to form more alkyl-phenols and the formation of C-1-C-4 hydrocarbons to release. The effect on formation of phenols followed the order USY > K2CO3 > CaO.