Fuel-Rich HCCI Engines as Chemical Reactors for Polygeneration: A Modeling and Experimental Study on Product Species and Thermodynamics
Fuel-Rich HCCI Engines as Chemical Reactors for Polygeneration: A Modeling and Experimental Study on Product Species and Thermodynamics
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富燃料 HCCI 发动机作为多联产化学反应器：产品种类和热力学的建模和实验研究
DOI：
10.1021/acs.energyfuels.7b02150
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发表时间：
2017
期刊：
影响因子：
5.3
通讯作者：
B. Atakan
中科院分区：
文献类型：
--
作者：
R. Hegner;M. Werler;R. Schießl;U. Maas;B. Atakan
研究了甲烷燃料均质充量压燃（HCCI）发动机生产乙烯和合成气等基础化学品以及一些功输出的过程。这种多联产过程进行了研究，通过数值模拟，伴随着快速压缩机实验。研究包括作为反应增强剂的二甲醚（DME）的播种，其允许甲烷转化已经在适度的、技术上容易获得的压缩比和预压缩温度。该概念是有前途的当量比高于2，预测产品气体摩尔分数高达25摩尔%的H2，20摩尔%的CO，和2摩尔%的C2H4。这些模拟结果在很大程度上与快速压缩机（RCM）实验的结果一致，其中检测到高达20摩尔% H2、16摩尔% CO和1摩尔% C2H4的产生。除了研究产品的组成，热力学方面的方法进行了研究，通过比较火用效率…
The usage of a methane-fueled homogeneously charged compression ignition (HCCI) engine process for producing base chemicals like ethylene and synthesis gas together with some work output is investigated. This polygeneration process is studied by numerical modeling, accompanied by rapid compression machine experiments. Studies include the seeding of dimethyl ether (DME) as a reaction enhancer which allows methane conversion already at moderate, technically easily accessible compression ratios and precompression temperatures. The concept is promising for equivalence ratios above 2, predicting product gas mole fractions of up to 25 mol % H2, 20 mol % CO, and 2 mol % C2H4. These simulation results are largely consistent with the outcome of rapid compression machine (RCM) experiments, in which production of up to 20 mol % H2, 16 mol % CO, and 1 mol % C2H4 was detected. In addition to studying the product composition, thermodynamic aspects of the approach were investigated by comparing the exergetic efficiency ...