Kinetics on the Integration of Methanol Aromatization with Raffinate Oil over ZSM-5/ZSM-11 Zeolite

• DOI: 10.1021/acs.iecr.1c03354
• Publication Date: 2021-12-09T13:33:10Z
• Authors: Shumei Wei; Yarong Xu; Xiang Ge; Xuedong Zhu; Jigang Zhao; Jichang Liu; Hui Sun; Benxian Shen
• Keywords: “ coal; Chemical Sciences not elsewhere classified; space velocity; aromatic hydrocarbons; 0211 other engineering and technologies; Plant Biology; lean oil; 02 engineering and technology; established kinetic model; reaction temperature; Biochemistry; low gas ”; good development prospects; Inorganic Chemistry; energy development status; kinetic model parameters; reaction series; lumped kinetic equations; Space Science; Environmental Sciences not elsewhere classified; simplex algorithm; different categories; Molecular Biology; aromatic hydrocarbons classified; reaction performance; reaction network; 660; >< sub; statistical test calculation; china ’; coupled light hydrocarbons; products obtained; raffinate oil; Infectious Diseases; overall decisive indicators; coupled light hydrocarbon; f </; rapid growth; Medicine; olefin alkanes; 11 zeolite facing; mta reaction mechanism; Biotechnology; Developmental Biology; Biological Sciences not elsewhere classified

Facing the rapid growth of the demand for aromatic hydrocarbons, combined with China’s energy development status of “coal-rich, lean oil, and low gas”, the methanol-to-aromatics (MTA) process has good development prospects. In this paper, the influence of reaction temperature, space velocity, and other conditions on the reaction performance of methanol-coupled light hydrocarbons to aromatics was investigated and then a lumped reaction kinetics study was carried out. The results of the study are: To investigate the composition and distribution of the products obtained by the reaction, according to the needs of lumped reaction kinetics research, six lumped mixed raw materials, C1, olefin alkanes, and aromatic hydrocarbons classified by different categories were constructed; based on the MTA reaction mechanism, assuming each reaction series, the reaction network and lumped kinetic equations were established; simplex algorithm and the Levenberg–Marquardt optimization method were used to fit the regression to obtain the kinetic model parameters; through the statistical test calculation of the model, each set of the overall decisive indicators are all greater than 90% and F > 10 F 0.05 , so the established kinetic model of methanol-coupled light hydrocarbon to aromatics is suitable.