文献类型：期刊文献

英文题名：Development of a Kinetic Model for Industrial Entrained Flow Coal Gasifiers

作者：Qian, Feng[1];Kong, Xiangdong[1];Cheng, Hui[1];Du, Wenli[1];Zhong, Weimin[2]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Adv Control & Optimizat Chem Proc, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Automat Inst, Shanghai 200237, Peoples R China

年份：2013

卷号：52

期号：5

起止页码：1819

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20130716012635);WOS:【SCI-EXPANDED(收录号:WOS:000314794700005)】；

基金：This work is supported by the Major State Basic Research Development Program of China (2012CB720500), the National Natural Science Foundation of China (Key Program U1162202; 61174118, 21276078), the National Science Fund for Outstanding Young Scholars (61222303), and the Shanghai Leading Academic Discipline Project (B504).

语种：英文

外文关键词：Kinetic parameters - Sensitivity analysis - Coal slurries - Coal combustion - Kinetic theory - Particle swarm optimization (PSO) - Reaction rates - Pyrolysis - Coal gasification

摘要：The characteristics of the industrial Texaco entrained flow coal gasifier are numerically studied in this paper. A kinetic model is proposed by dividing the gasifier into two zones to obtain the temperature and product concentration distribution along the reactor. These two zones are the pyrolysis-combustion zone and the reduction zone. The pyrolysis-combustion zone is modeled using the stoichiometry method. A detailed investigation was carried out on the gasification reaction rates in the reduction zone. The particle swarm optimization technique is introduced in this paper to address the lack of heterogeneous reaction kinetic parameters based on the random pore model for the specific feed Shenfu coal, and the huge deviation of the industrial product gas composition from the theoretical composition at equilibrium state. With the evaluated optimum kinetic parameters, robust agreement is achieved between the model outputs and the industrial data. Moreover, a sensitivity analysis related to the O-2-to-coal ratio and coal slurry concentration was carried out in light of the proposed model.