Kinetic and CFD Modeling of Exhaust Gas Reforming of Natural Gas in a Catalytic Fixed‐Bed Reactor for Spark Ignition Engines,Chemical Engineering & Technology

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Kinetic and CFD Modeling of Exhaust Gas Reforming of Natural Gas in a Catalytic Fixed‐Bed Reactor for Spark Ignition Engines
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-02-25 , DOI: 10.1002/ceat.201900474
Abdulwahid Arman ₁ , Ftwi Yohaness Hagos _{1,

2} , Abdul Adam Abdullah _{1,

2} , Abd Rashid Abd Aziz ₃ , Rizalman Mamat _{1,

2} , Chin Kui Cheng ₄ , Dai-Viet N. Vo ₅

Affiliation

Fuel reforming is an attractive method for performance enhancement of internal combustion engines fueled by natural gas, since the syngas can be generated inline from the reforming process. In this study, 1D and 2D steady‐state modeling of exhaust gas reforming of natural gas in a catalytic fixed‐bed reactor were conducted under different conditions. With increasing engine speed, methane conversion and hydrogen production increased. Similarly, increasing the fraction of recirculated exhaust gas resulted in higher consumption of methane and generation of H₂ and CO. Steam addition enhanced methane conversion. However, when the amount of steam exceeded that of methane, less hydrogen was produced. Increasing the wall temperature increased the methane conversion and reduced the H₂/CO ratio.

中文翻译：

火花点火发动机固定床反应器中天然气废气重整的动力学和CFD建模

燃料重整是用于提高以天然气为燃料的内燃机的性能的有吸引力的方法，因为合成气可以从重整过程中在线产生。在这项研究中，在不同条件下对催化器固定床反应器中的天然气废气重整进行了一维和二维稳态建模。随着发动机转速的提高，甲烷的转化率和产氢量增加。同样，增加再循环废气的比例会导致甲烷消耗量增加以及H ₂和CO的产生。添加蒸汽会提高甲烷的转化率。但是，当蒸汽量超过甲烷时，产生的氢气更少。升高壁温可提高甲烷转化率并降低H ₂/ CO比。

更新日期：2020-02-25

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