NATURAL-GAS FIRED COMBINED-CYCLE POWER-PLANT WITH CO2 CAPTURE

被引：18

作者：

SHAO, YL ^{[1
]}

GOLOMB, D ^{[1
]}

BROWN, G ^{[1
]}

机构：

[1] UNIV LOWELL,COLL ENGN,LOWELL,MA 01854

来源：

ENERGY CONVERSION AND MANAGEMENT | 1995年 / 36卷 / 12期

关键词：

CO2; CAPTURE; ABATEMENT; EMISSION CONTROL; OXYGEN COMBUSTION; COMBINED CYCLE; ENERGY EFFICIENCY;

D O I：

10.1016/0196-8904(95)00008-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A natural gas (NG) fired power plant is designed with virtually zero emissions of pollutants, including CO2. The plant operates in a gas turbine-steam turbine combined cycle mode. NG is fired in highly enriched oxygen (99.7%) and recycled CO2 from the flue gas. Liquid oxygen (LOX) is supplied by an on-site air separation unit (ASU). By cross-integrating the ASU with the CO2 capture unit, the energy consumption for CO2 capture is significantly reduced. The exergy of LOX is used to liquefy CO2 from the hue gas, thereby saving compression energy and also delivering product CO2 in a saleable form. By applying a new technique, the gas turbine efficiency is increased by about 2.9%. The net thermal efficiency (electricity out/heat input) is estimated at 45%, compared to a plant without CO2 capture of 54%. However, the relatively modest efficiency loss is amply compensated by producing saleable byproducts, and by the virture that the plant is pollution free, including NOx, SO2 and particulate matter. In fact, the plant needs no smokestack. Besides electricity, the byproducts of the plant are condensed CO2, NO2 and Ar, and if operated in cogeneration mode, steam.

引用

页码：1115 / 1128

页数：14

共 15 条

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