热力发电Issue(8)：21-26,6.DOI:10.3969/j.issn.1002-3364.2015.08.021
增压富氧焚烧垃圾近零排放电站技术经济性分析
Technical and economic analysis on a pressurized oxygen-enriched waste incineration power plant
摘要
Abstract
A novel design concept for pressurized oxygen-enriched waste incineration power plant with near-zero emission was proposed,in which the slag-tap pressurized waste incineration boiler was applied,and the oxygen production and flue gas compression purification and recovery system were added.Taking a waste incineration turbine-generator unit which consumes municipal waste of 1 100 t each day as the research ob-ject,the technical and economic analysis was carried out for the unit at pressure of 0.5 MPa,1.0 MPa and 1 .5 MPa,and the results were compared with that of the atmospheric pressure oxy-fuel combustion.It shows that,under pressurized oxygen-enriched combustion condition,since the systematic pressure in-creased,the latent heat of steam in flue gas can be recovered to heat the low pressure condensate in steam turbine,thus to reduce the steam extraction and increase the turbine power output.As a results,the gross unit power output reached 25 MW.The power consumption of air separation unit (ASU)rose,which ac-counted for about 35% of the power generation,and that of the compression and purification unit (CPU) reduced,which accounted for about 5% of the power generation,both were lower than that of the atmos-pheric pressure oxygen-enriched combustion.Considering other auxiliary power consumptions,the overall net unit efficiency at pressure from 0.5 MPa to 1.5 MPa of the oxygen-enriched combustion was enhanced by about 9 .3 1% to 9 .9%.关键词
垃圾焚烧发电/增压富氧燃烧/近零排放/净效率Key words
waste incineration/pressurized oxygen-enriched combustion/near-zero emission/net efficiency分类
能源科技引用本文复制引用
阎维平,海云龙,何雪鸿,马凯..增压富氧焚烧垃圾近零排放电站技术经济性分析[J].热力发电,2015,(8):21-26,6.基金项目
国家高技术研究发展计划(863计划)项目(2009AA05Z310) （863计划）
