摘要：Thermogravimetric-mass spectrometry (TG-MS) was adopted for the pyrolysis experiment on Venezuela vacuum residue at different heating rates to study the pyrolysis reaction characteristics, and three iso-conversional methods and the distribution activation energy model (DAEM) were used to obtain the kinetic parameters of pyrolysis action for vacuum residue. The results show that the main temperature range for the pyrolysis reaction of Venezuela vacuum residue is 179-490C, the total mass loss rate is up to 77.54%, the mass loss hits the peak at 446 C, and the maximum mass loss rate is 317.38 μg/min. It js found that compared with other two iso-conversional methods, Flynn-Wall-Ozawa (FWO) method can better describe the pyrolysis process of vacuum residue， and the pyrolysis activation energy calculated by FWO method is 56.77-178.91 kJ/mol. Later, vacuum residue was further divided into four hypothetical components by DAEM, and TG-DTG data at the heating rate of 10 C/min were fitted by peaks to obtain the kinetic parameters of four components (i.e., saturates, aromatics, resins and asphaltenes), as well as the total activation energy distribution curve of vacuum residue accordingly. The results indicate that the activation energy of Venezuela vacuum residue is mainly concentrated in the range of 100-250 kJ/mol, and the average activation energy obtained by weighted summation is 190.11 kJ/mol. ? 2022 Science Press. All rights reserved.

ISSN号：1001-8719

卷、期、页：卷38期5：1070-1081

发表日期：2022-09-10

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）

发表期刊名称：Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section)

通讯作者：Qiao, Pei,Guo, Ziqian,Xiong, Qing

第一作者：李家州,张玉明,张炜

论文类型：期刊论文

论文概要：李家州,Qiao, Pei,Guo, Ziqian,张玉明,张炜,Xiong, Qing，Study on the Pyrolysis Characteristics and Kinetics of Venezuela Vacuum Residue，Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section)，2022，卷38期5：1070-1081

论文题目：Study on the Pyrolysis Characteristics and Kinetics of Venezuela Vacuum Residue