主催: 日本エネルギー学会, 石炭科学部会, コークス工学研究部会, 重質油部会
共催: 日本学術振興会 石炭・炭素資源利用技術第148委員会, 化学工学会 エネルギー部会
会議名: 第56回石炭科学会議
回次: 56
開催地: ウィンクあいち
開催日: 2019/10/29 - 2019/10/30
p. 24-25
This paper reports a numerical study for a singl e shell and tube rea ctor of CO2 methanation with a 1.5 m long reaction zone. A new conjugate heat transfer solver is developed based on the open-source OpenFOAM code. The newly developed solver solves the heat transfer problem as well as the reactions happen in the gas phase. The reactor is meshed with fully resolved gas, solid, and coolant regions , Two-temperature model is considered to solve the temperature of catalyst bed . The tube diam e ter is changed to investi gate the effect on the hot spot formation. The results show that the diameter of the tube is an important factor in determining the tem perature profiles of the catalyst bed as well as reacting gas. The peak t emperature of the hot spot was decreased from 980 to 770K with decreasing the tube diame ter from 32 to 14mm at a GHSV=3428h-1.
