Simulation of hydrogen production by coal pyrolysis gas sorption enhanced reforming(SER-CPG) technology was established by using Aspen Plus software. Appropriate models for SER unit

calcination regeneration unit and waste heat power generation unit were set up in detail. Furthermore

optimization of the reactor pressure of SER unit under conditions with calcium to carbon ratio of 2.75

water to carbon ratio of 3.5 and reforming temperature of 650 ℃ was carried out. The thermal and exergy efficiency

energy consumption

water consumption during hydrogen production and hydrogen production rate were used to evaluate and optimize the system performance. A conventional CPG steam reforming process with the same feed conditions was chosen for comparison. The results showed that

the production of H2 from SER system increased by 7.66%. The energy efficiency reached 79.55%

and the exergy efficiency increased from 73.14% to 77.63%

indicating a significant improvement in system efficiency. Taking the efficiency and hydrogen production into consideration

the SER-CPG technology has better technical performance

which could be considered as one of the routes of hydrogen production from coal gas at the present stage. In conclusion

the SER-CPG process is a hydrogen production technology with application prospect.