Simulation of hydrocarbons pyrolysis in a fast-mixing reactor

M.G. Ktalkherman; I.G. Namyatov

doi:10.1016/j.cjche.2014.06.042

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Simulation of hydrocarbons pyrolysis in a fast-mixing reactor

催化、动力学与反应工程 | Updated：2026-01-06

- Simulation of hydrocarbons pyrolysis in a fast-mixing reactor
- Chinese Journal of Chemical Engineering Issue 6, Pages: 941-953(2015)
- Affiliations：
  
  1. Khristianovich Institute of Theoretical and Applied Mechanics, Russian Academy of Science, Siberian Branch,Novosibirsk,Russia,630090
  2. 2 Voevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Science, Siberian Branch,Novosibirsk,Russia,630090
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.06.042
  CLC：
- Published：2015
- Accepted：
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M.G. Ktalkherman, I.G. Namyatov. Simulation of hydrocarbons pyrolysis in a fast-mixing reactor[J]. Chinese Journal of Chemical Engineering, 2015, (6): 941-953.
DOI：

M.G. Ktalkherman, I.G. Namyatov. Simulation of hydrocarbons pyrolysis in a fast-mixing reactor[J]. Chinese Journal of Chemical Engineering, 2015, (6): 941-953. DOI： 10.1016/j.cjche.2014.06.042.

摘要

Abstract

Currently

thermal decomposition of hydrocarbons for the production of basic petrochemicals (ethylene

propylene) is carried out in steam-cracking processes. Aside from the conventional method

under consideration are alternative ways purposed for process intensification. In the context of these activities

the method of hightemperature pyrolysis of hydrocarbons in a heat-carrier flow is studied

which differs from previous ones and is based on the ability of an ultra-short time of feedstock/heat-carrier mixing. This enables to study the pyrolysis process at high temperature (up to 1500 K) at the reactor inlet. A set of model experiments is conducted on the lab scale facility. Liquefied petroleumgas (LPG) and naphtha are used as a feedstock. The detailed data are obtained on temperature and product distributions within a wide range of the residence time. A theoretical model based on the detailed kinetics of the process is developed

too. The effect of governing parameters on the pyrolysis process is analyzed by the results of the simulation and experiments. In particular

the optimal temperature is detected which corresponds to the maximum ethylene yield. Product yields in our experiments are compared with the similar ones in the conventional pyrolysis method. In both cases (LPG and naphtha)

ethylene selectivity in the fast-mixing reactor is substantially higher than in current technology.

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