Title of article :
Effect of Double Transition Metal Salt Catalyst on Fushun OilShale Pyrolysis
Author/Authors :
Liu, Xiaoyang College of Petroleum Engineering - Liaoning Shihua University - Fushun , China , Pan, Haodan College of Petroleum Engineering - Liaoning Shihua University - Fushun , China , Di, Xiaojing College of Petroleum Engineering - Liaoning Shihua University - Fushun , China , Guo , Chuang Beijing Gas Energy Development - Beijing , China , Hu, Hongxiang CAS Key Laboratory of Nuclear Materials and Safety Assessment - Institute of Metal Research - Chinese Academy of Sciences - Shenyang , China
Abstract :
Shale ash (SA) as the carrier, the ratio of Cu to Ni in the Cu-Ni transition metal salt being, respectively, 1 : 0, 2 : 1, 1 : 1, 1 : 2, 0 : 1, thedouble transition metal salt catalyst (CumNin/SA) was prepared to explore the effect of such catalysts on the pyrolysis behavior andcharacteristics of Fushun OS. The research results show that the temperature (Tmax) corresponding to the maximum weight lossrate decreased by 12.9°C, 4.0°C, and 3.6°C; and the apparent activation energy decreased by 35.2%, 33.9%, and 29.6%,respectively, after adding catalysts Cu0Ni1/SA in pyrolysis. The addition of Cu0Ni1/SA and Cu2Ni1/SA further improves theshale oil (SO) yield of 3.5% and 3.1%, respectively. Cu0Ni1/SA produces more aromatic hydrocarbons, which, however, weakensthe stability of SO and is of toxicity in use. After analyzing the pyrolysis product—semicoke (SC) and SO—with ATR-FTIR andGC-MS methods, CumNin/SA promotes the secondary cracking and aromatization of OS pyrolysis, increasing the content of thecompound of olefins and aromatics in SO, and hastening the decomposition of long-chain aliphatic hydrocarbons to short-chain aliphatic hydrocarbons.
Keywords :
Double Transition Metal Salt Catalyst , Fushun Oil Shale Pyrolysis , SO , Shale ash (SA) , CumNin/SA , ATR-FTIR and GC-MS
