桦甸油页岩半焦燃烧特性及动力学研究

Combustion Characteristics of the Semi-Coke From Huadian Oil Shale

1.中国石油四川石化有限责任公司,2.中国石油大学重质油加工国家重点实验室,3.大庆油田勘探开发研究院

1. PetroChina Sichuan Petrochemical Co., Ltd., Chengdu Sichuan 610036, P.R.China; 

2. State Key Lab of Heavy Oil Processing, China University of Petroleum, Beijing 102249, P.R.China;  3. Daqing Oil Field E&D Research Institute, Daqing Heilongjiang 163712, P.R.China

关键词: 油页岩 , 半焦 , 燃烧 , 动力学

Experimental research on combustion characteristics of Huadian oil shale semi-coke was investigated under four different heating rates by using the thermogravimetric analyzer. The results show that the combustion process of Huadian oil shale semi-coke divided into three stages. The largest mass loss and the most heat release appeared in the first stage. Because of little fixed carbon and thermal decomposition of minerals, the endothermic process appeared in the third stage. Due to heat and mass transfer, the temperatures of the ignition and complete combustion increased with increasing heating rate. The kinetic parameters analyzed by the Friedman method indicated that the combustion of Huadian oil shale semi-coke was a complex multiple rections. The apparent activation energy calculated between 90 kJ/mol and 120 kJ/mol at lower temperature region, which is lower than that at higher temperature region with the apparent activation energy between 150 kJ/mol and 200 kJ/mol.

10.3696/j.issn.1006-396X.2011.03.014