Detailed plant layout studies of oxy-enriched CO₂ pulverized coal combustion-based power plant with CO₂ enrichment

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• 作者：S. Jayanti ; D. Kareemulla
• 关键词：Carbon capture and sequestration ; Pulverized coal combustion ; Oxy ; fuel combustion ; CO2 enrichment ; Plant layout simulations ; Thermal efficiency ; Energy penalty
• 刊名：Clean Technologies and Environmental Policy
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：18
• 期：6
• 页码：1985-1996
• 全文大小：2,031 KB
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Industrial Chemistry and Chemical Engineering
  Industrial Pollution Prevention
  Environmental Economics
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1618-9558
• 卷排序：18

文摘

Coal plays a vital role in electricity generation worldwide and is expected to contribute significantly to thermal power generation for the foreseeable future, especially in countries such as India. Carbon capture and sequestration technologies therefore become imperative in order to minimize CO₂ emissions. A systematic and comprehensive assessment of the most promising of these technologies—consisting of supercritical boiler parameters, oxy-coal combustion, and low temperature flashing for simultaneous CO₂ and SO₂ capture—for typical Indian environmental and fuel conditions has been carried out in the present study. The results show that up to 93.3 % of CO₂ and 95 % of SO₂ generated during combustion can be captured while producing a sequestration-ready CO₂ stream of 95.5 mol% purity compressed to a supercritical pressure of 110 bar. The energy penalty for this suite of technologies amounts to about 8.5 % drop in the net power plant efficiency to 33 % despite adopting efficiency measures such as supercritical boiler technologies.