CIESC Journal ›› 2018, Vol. 69 ›› Issue (S1): 102-107.doi: 10.11949/j.issn.0438-1157.20180754

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Methanol steam reforming for hydrogen production with waste heat recovery-effects of operation parameters

WANG Feng1,2, LIU Yanyun2, CHEN Bohong2, WANG Guoqiang2   

  1. 1 Key Laboratory of Low-grade Energy Utilization Technologies and Systems(Chongqing University), Ministry of Education, Chongqing 400044, China;
    2 College of Power Engineering, Chongqing University, Chongqing 400044, China
  • Received:2018-07-06 Revised:2018-07-10
  • Supported by:

    supported by the National Natural Science Foundation of China (50906104) and the Venture & Innovation Support Program for Chongqing Overseas Returnees (cx2017114).

Abstract:

The process of methanol steam reforming (MSR) for hydrogen production heated by simulated exhaust heat was studied. Radial fin reactor was designed with waste heat recovery. The effects of simulated waste heat air inlet velocity and temperature, reactant inlet velocity, temperature and water methanol ratio, reactant and heated air co-current and counter current flow conditions on MSR process were investigated. Results showed that the optimum operation condition of this reactor is that the reactant and heated air operates as co-current flow, water methanol ratio sets as 1.3, inlet heated air velocity and temperature keep as 1.1 m/s and 773 K, inlet reactant velocity and temperature maintains as 0.1 m/s and 493 K. Methanol conversion reaches 99.4% and thermal efficiency of simulated exhaust heat reaches 28%, reactor outlet hydrogen volume fraction attains 69.6%. The results can give some reference for waste heat utilization and exhaust heat reforming for hydrogen production, combustion blended with hydrogen.

Key words: methanol steam reforming, hydrogen production, exhaust heat, micro-reactor, thermal efficiency

CLC Number: 

  • TK91

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