用Ni - Ce@SiO2催化剂干重整甲烷同时利用CO2和CH4：参数化和模拟研究

Q1 Environmental Science

Case Studies in Chemical and Environmental Engineering Pub Date : 2024-12-18 DOI:10.1016/j.cscee.2024.101078

Intan Clarissa Sophiana , Soen Steven , Arnetta Revieri , Anisa Permatasari , Riezqa Andika , Norikazu Nishiyama , Bambang Heru Susanto

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引用次数: 0

摘要

甲烷干重整（DRM）可以同时还原CO2和CH4。本研究利用东纳土纳天然气田70% CO2和30% CH4组成，采用Ni - Ce@SiO2催化剂进行DRM合成气生产。动力学参数采用表面反应的Langmuir-Hinshelwood机理作为决定反应速率的步骤。仿真结果提供了小于5%的误差范围。在700℃条件下，当CO2:CH4进料比为70:30时，CH4转化率高于50:50(97.10%比79.01%)，但H2/CO比较低（0.68比0.92）。此外，较高的温度会缩短反应堆长度，加快实现稳定转化的时间。

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Simultaneous utilization of CO2 and CH4 through dry reforming of methane with Ni–Ce@SiO2 catalyst: Parametric and simulation studies

The dry reforming of methane (DRM) can reduce CO₂ and CH₄ simultaneously. This study utilized East Natuna gas fields, composed of 70 % CO₂ and 30 % CH₄, for syngas production via DRM using a Ni–Ce@SiO₂ catalyst. The kinetic parameters employed the Langmuir-Hinshelwood mechanism on the surface reaction as the rate-determining step. The simulation results provided an error margin below 5 %. A CO₂:CH₄ feed ratio of 70:30 at 700^oC achieves higher CH₄ conversion than a 50:50 ratio (97.10 % vs. 79.01 %), yet with lower H₂/CO ratio (0.68 vs. 0.92). Also, higher temperatures impact shorter reactor lengths and swifter times to reach stable conversion.

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