首页> 外文会议>American Chemical Society Symposium on Methane and Alkane Conversion Chemistry >COUPLING OF CATALYTIC PARTIAL OXIDATION AND STEAM REFORMING OF METHANE TO SYNGAS
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COUPLING OF CATALYTIC PARTIAL OXIDATION AND STEAM REFORMING OF METHANE TO SYNGAS

机译:催化局部氧化与甲烷蒸汽重整的偶联与合成气

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Methane-to-syngas (i.e.CO and H,) conversion reactions involving exothermic oxidative conversion of methane and endothemic steam reforming of methane have been carried simultaneously NiO-CaO (Hi/Ca = 3.0) catalyst at different temperatures (700- 850°C), CH4/O2 (1.8 - 6.0) and CH4/H,0 (1.6- 10.0) ratios and space velocities (16 x 103 - 1090 x 10 h- ).By the coupling of the exotheriic and endothermic reactions, it is possible to make, the CHOCSR (coupled methane oxidative conversion and steam reforming) process mildly endothermic, near thenoneutral or mildly exothermic by manipulating the process conditions (viz. temperature and feed ratios) and also to operate the process in a most energy efficient and safe manner, with requirenent of little or no external energy. Dnder the present energy crisis, the conversion of methane to syngas (with H,/CO ratio close to 2.0 which is desirable for methanol and Fischer-Tropsch synthesis) with high conversion, selectivity and productivity in a most energy efficient and safe Manner with requirement of little or no external energy is of great practical importance for the effective utilization of natural gas by its conversion to value added and/or easily transportable products via syngas routes.
机译:甲烷至合成气(IECO和H,)涉及放热氧化转化的甲烷和甲烷内蒸汽重整的转化反应已经同时在不同温度下的NiO-CaO(HI / Ca = 3.0)催化剂(700-850℃ ),CH4 / O2(1.8 - 6.0)和CH4 / H,0(1.6-10.0)比率和空间速度(16 x 103-1090 x 10 h-)。该耦合的放热和吸热反应,是可能的为了使Chocsr(偶联甲烷氧化转化率和蒸汽重整)通过操纵工艺条件(温度和饲料比率),方法温和地吸热,接近于其Ooneutral或轻微放热),并以最能效率和安全的方式操作该过程,要求很少或没有外部能量。达到目前的能量危机,将甲烷转化为合成气(具有H,/ Co比接近2.0,这对于甲醇和费城 - 滴水合成而言,具有高的转化,选择性和生产率,最能效率和安全的方式要求对于通过Syngas途径的转换,几乎没有外部能量对天然气的有效利用具有很大的实际重要性,可通过转换为增值和/或易于运输产品。

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