Since municipal solid waste (MSW) is a negatively priced, abundant, and essentially renewable feedstock, energy recovered from MSW is a useful technology to reduce the consumption of fossil fuels, and also reduces the expenses needed to dispose of MSW. Three configurations of MSW-based IGCC power system (Design 1), MSW-based IGCC polygeneration system (Design 2), and CaO-based IGCC polygeneration system (Design 3) are proposed. Design 1 uses a combination of an identified MSW gasifier, an integrated intermittent chemical-loop air separation (IICLAS), and Rankine and Brayton cycles to generate electricity and achieve the high concentration of CO₂ emissions around 93.3%~94.7%. The process for co-production of DME and MeOH in Design 2, which replaces the Rankine cycle in Design 1, could increase the net energy efficiency of Design 1 by 71.6%, but the total CO₂ emissions from Design 2 are merely 7.97% of Design 1. The calcium looping gasification (CaLG) process in Design 3, which replaces the MSW gasifier in Design 2, could increase the production rate of DME of Design 2 by 12.5%. The CO₂ concentration from the calcinator in Design 3 is higher than CO₂ concentration in flue gas from Designs 1 and 2 by 2.0%~3.5%. Through exergy analysis, the overall exergy efficiency of Design 3 is lower than Designs 1 and 2 by 3.2%~10.1% due to the exergy destruction rate and ratio in the gasification zone of Design 3 higher than other designs. The GaLG process could increase the DME yield as well as the outlet CO₂ concentration, but this approach design induces a higher exergy loss.

由于城市固体废物（MSW）是价格低廉，丰富且基本上可再生的原料，因此从MSW中回收的能源是一种有用的技术，可减少化石燃料的消耗，并减少处置MSW所需的费用。提出了基于MSW的IGCC发电系统（设计1），基于MSW的IGCC多联发电系统（设计2）和基于CaO的IGCC多联发电系统（设计3）的三种配置。设计1使用已识别的MSW气化炉，集成的间歇性化学回路空气分离（IICLAS）以及Rankine和Brayton循环的组合来发电并实现高浓度的CO ₂排放约93.3％〜94.7％设计2中联产DME和MeOH的过程代替了设计1中的兰金循环，可以使设计1的净能源效率提高71.6％，但设计2的总CO ₂排放仅为7.97％。设计1.设计3中的钙环化气化（CaLG）工艺取代设计2中的MSW气化炉，可使设计2中DME的生产率提高12.5％。设计3中煅烧炉中的CO ₂浓度高于CO ₂设计1和2的烟气中浓度为2.0％〜3.5％。通过火用分析，设计3的整体火用效率比设计1和2低3.2％〜10.1％，这是因为设计3的气化区的火用破坏率和比例要高于其他设计。GaLG工艺可以提高DME的产率以及出口CO _2的浓度，但是这种方法设计会导致更高的火用损失。