文献类型：期刊文献

英文题名：Techno-economic analysis of carbon-based additives and process optimization for enhanced hydrogen production in integrated pyrolysis/ gasification and carbon capture systems

作者：Lu, Wenxin[1];Ding, Yuxing[2,3];Dong, Zhaoxi[2,3];Peng, Xin[2,3];Chai, Yue[1];Xiao, Dunfeng[1];Liu, Yurong[2,3];Qian, Feng[2,3];Mujtaba, Iqbal M.[4]

机构：[1]Wuhuan Engn Co Ltd, Natl Res & Dev Ctr China Utilizat Low Rank Coal, 1019 Minzu Rd, Wuhan, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Ind Control Technol, Shanghai 200237, Peoples R China;[3]Huzhou Inst Ind Control Technol, Huzhou 313099, Peoples R China;[4]Univ Bradford, Fac Management Sci & Engn, Chem Engn Div, Bradford BD7 1DP, England

年份：2026

卷号：103

外文期刊名：JOURNAL OF CO2 UTILIZATION

收录：;EI(收录号：20255219792702);WOS:【SCI-EXPANDED(收录号:WOS:001660837500001)】；

基金：The work was supported by National Natural Science Foundation of China (62503175) , Shanghai Pujiang Program (24PJD021) , Natural Science Foundation of Shanghai (25ZR1402100) .

语种：英文

外文关键词：Pyrolysis; Gasification; H2 production; CO2 capture and utilisation; Process Simulation

摘要：Overexploitation of fossil fuels leads to issues of energy security and environmental pollution. Integrating carbon capture and utilisation (CCU) with biomass and waste plastics pyrolysis/gasification offers a promising route for simultaneous hydrogen production and CO2 mitigation. However, hydrogen yield is often limited in such integrated systems. This study developed an Aspen Plus model to evaluate the effects of carbon-based additives, steam flow rate, and reforming temperature on H2 production and process economics. Results show that application of CCU to pyrolysis/gasification decreases H2 yield from 5.28 to 4.61 mol/hr, and only a small quantity of carbon additives (0.13 additives-to-feed ratio) can restore the H2 yield to 5.33 mol/hr, which is higher than the original level of 5.28 mol/hr when no CCU is applied. An optimal steam flowrate is required to balance enhanced H2 generation against the undesired increase in CO2 formation that may offset the benefit of carbon capture. 600 degrees C is identified as the optimal temperature with the highest H2 yield. Economic analysis also indicates the levelized cost of hydrogen (LCOH) at different operating conditions. A multi-objective optimisation was also performed to find an optimal operating point at 1.50 g/min carbon addition, 8.75 g/min steam flowrate, and 669.92 degrees C reforming temperature, corresponding to an H2 yield of 14.04 mol/h and an LCOH of 3.49 $/kg. The findings provide quantitative guidance for optimising integrated pyrolysis/gasification-CCU systems toward industrial deployment.