Engineering evaluation of direct methane to methanol conversion

被引:22
作者
de Klerk, Arno [1 ]
机构
[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2V4, Canada
关键词
Gas-to-liquids; methane; methanol; natural gas; partial oxidation; OXIDATION; CHEMICALS; FUELS; SOLUBILITY; SYSTEM; WATER;
D O I
10.1002/ese3.51
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Investigations into direct methane to methanol conversion are justified based on the avoidance of synthesis gas generation, which accounts for around 60% of the capital cost of synthesis gas to methanol conversion. A significant body of information already exists on the process chemistry, but little has been reported on the engineering of such a process. An engineering evaluation of the process was performed and the potential of this process as a platform technology for small-scale gas-to-liquids (GTL) applications was evaluated. It was found that direct methane to methanol conversion had 35% carbon efficiency and 28% thermal efficiency, which were about half of the process efficiencies of indirect methanol synthesis using synthesis gas. The poor process efficiency was mainly a consequence of the irreversible loss of carbon to COx during conversion. The direct methane to methanol process also required an air separation unit, which eroded the stated benefit of avoiding a synthesis gas generation step in the process. The utility footprint was typical of GTL processes, with large gas compression duties and cooling duties. Overall, the engineering evaluation indicated there was no benefit to employ direct methane to methanol conversion instead of indirect methanol synthesis (the industry standard), and there was no specific benefit of direct methane to methanol conversion, irrespective of scale, for GTL applications.
引用
收藏
页码:60 / 70
页数:11
相关论文
共 36 条
[11]  
De Klerk A., 2014, PREPR PAP AM CHEM SO, V59, P823
[12]  
de Klerk A., 2012, MAT SUTAINABLE FUTUR, P327
[13]   THE DIRECT CONVERSION OF METHANE TO METHANOL BY CONTROLLED OXIDATION [J].
GESSER, HD ;
HUNTER, NR ;
PRAKASH, CB .
CHEMICAL REVIEWS, 1985, 85 (04) :235-244
[14]   Elucidation and Evolution of the Active Component within Cu/Fe/ZSM-5 for Catalytic Methane Oxidation: From Synthesis to Catalysis [J].
Hammond, Ceri ;
Dimitratos, Nikolaos ;
Jenkins, Robert L. ;
Lopez-Sanchez, Jose Antonio ;
Kondrat, Simon A. ;
ab Rahim, Mohd Hasbi ;
Forde, Michael M. ;
Thetford, Adam ;
Taylor, Stuart H. ;
Hagen, Henk ;
Stangland, Eric E. ;
Kang, Joo H. ;
Moulijn, Jacob M. ;
Willock, David J. ;
Hutchings, Graham J. .
ACS CATALYSIS, 2013, 3 (04) :689-699
[15]   Partial Oxidative Conversion of Methane to Methanol Through Selective Inhibition of Methanol Dehydrogenase in Methanotrophic Consortium from Landfill Cover Soil [J].
Han, Ji-Sun ;
Ahn, Chang-Min ;
Mahanty, Biswanath ;
Kim, Chang-Gyun .
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 2013, 171 (06) :1487-1499
[16]  
Haring H.W., 2008, Industrial Gases Processing
[17]   Direct conversion of methane to fuels and chemicals [J].
Holmen, Anders .
CATALYSIS TODAY, 2009, 142 (1-2) :2-8
[18]  
Hudlicky M, 1990, ACS MONOGRAPH SER, V186
[19]  
Keim W., 1983, CATALYSIS C1 CHEM, P245
[20]  
Kuo J. C. W., 1992, Methane Conversion by Oxidative Processes, P483