D. Akhmedova, V. Baghiyev
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摘要

在本研究中,我们研究了不同配位的二元镍-铈氧化物催化剂上乙醇水蒸气转化为氢的反应。在最高温度为600℃时,产氢率达到76.5%,500℃以上的反应产物仅含氢、甲烷和一氧化碳。研究发现,在乙醇蒸汽重整反应中,镍与它们的原子比影响了Ni-Ce-O氧化物催化剂的活性。因此,随着催化剂中氧化镍用量的增加,Ni-Ce = 5-5催化剂的产氢率逐渐超过最大值82.3%。通过x射线相分析,提出了Ni-Ce-O催化体系中形成NiO和CeO2两种相,其比例随方向变化。比较了反应产物的产率和催化剂的结晶度。首先,随着试验结晶程度的增加,氢的产率达到最大值,而甲烷的产率达到最小值,一氧化碳的产率下降。关键词:二元催化剂,氢,生物乙醇,甲烷,结晶度,蒸汽重整,活性,一氧化碳。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
INVESTİGATİON OF THE REACTİON OF OBTAİNİNG HYDROGEN FROM ETHANOL OVER BİNARY NİCKEL-SERIUM OXİDE CATALYSTS
In the presented work, we had investigated the reaction of steam conversion of ethanol to hydrogen over binary nickel-cerium oxide catalysts of various alignments. It is also resoluted that hydrogen yield at a maximum temperature of 600 ° C reaches 76.5%, and the reaction products above 500 ° C contained only hydrogen, methane and carbon monoxide. It was found that the atomic ratio of nickel to them affects the activity of oxide catalysts Ni-Ce-O in the reaction of steam reforming of ethanol. Thus, as the amount of nickel oxide in the catalyst increases, the hydrogen yield in the Ni-Ce = 5-5 catalyst gradually exceeds the maximum by 82.3%. Based over the X-ray phase analysis, it was initiated that two phases are formed in the Ni-Ce-O catalytic system: NiO and CeO2, and the ratios change according to the directions. The yields of the reaction products and the degree of crystallinity of the catalysts are compared. It was initiated that with an increase in the degree of crystallinity of the trial, the yield of hydrogen passes through a maximum, while the yield of methane passes through a minimum, and the yield of carbon monoxide declines. Keywords: binary catalysts, hydrogen, bioethanol, methane, crystallinity, steam reforming, activity, carbon monoxide.
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