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Commercial process for mass production of synthetic natural gas through the adiabatic reactors: operational characteristics of a 50‐kW pilot‐plant, influence of steam, and CO 2
Author(s) -
Swain Basudev,
Kang SukHwan,
Kim JinHo,
Jung KiJin,
Yoo YoungDon,
Kim KwangJun,
Koh DongJun,
Ryu JaeHong
Publication year - 2016
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3605
Subject(s) - methanation , substitute natural gas , chemistry , pilot plant , natural gas , water gas shift reaction , catalysis , adiabatic process , syngas , thermodynamics , organic chemistry , physics
Summary In synthetic natural gas (SNG) reaction process, the water gas shift (WGS) reaction and methanation reaction take place simultaneously, and an insufficient supply of steam might deactivate the catalyst. In this study, the characteristics of the methanation reaction with a commercial catalyst and using a low [H 2 ]/[CO] mole ratio in SNG synthesis are evaluated. The reaction characteristics at various possible process parameters are evaluated varying different process parameters such as the [H 2 O]/[CO] mole ratio, [H 2 ]/[CO] mole ratio, flow of different % CO 2 , and reaction temperature. Temperature profiles on catalyst bed are monitored as a function of the [H 2 O]/[CO] mole ratio, [H 2 ]/[CO] mole ratio, and flow of different % CO 2 . Through a lab‐scale optimization process, suitable optimum conditions are selected and in the same condition a 50‐kW pilot‐scale SNG production process through adiabatic reactors is carried out. The pilot scale SNG reaction is stable through overnight and the CO conversion efficiency and CH 4 selectivity are 100% and 97.3%, respectively, while the maximum CH 4 productivity is 0.654 m 3 /kg cat · h. Copyright © 2016 John Wiley & Sons, Ltd.