Multi-Pollutant Formation and Control in Pressurized Oxy-Combustion:SOx,NOx,Particulate Matter,and Mercury

扫码查看

原文链接

万方数据

外文摘要：Oxy-combustion is a promising carbon-capture technology,but atmospheric-pressure oxy-combustion has a relatively low net efficiency,limiting its application in power plants.In pressurized oxy-combustion(POC),the boiler,air separation unit,flue gas recirculation unit,and CO2 purification and compression unit are all operated at elevated pressure;this makes the process more efficient,with many advantages over atmospheric pressure,such as low NOx emissions,a smaller boiler size,and more.POC is also more promising for industrial application and has attracted widespread research interest in recent years.It can produce high-pressure CO2 with a purity of approximately 95％,which can be used directly for enhanced oil recovery or geo-sequestration.However,the pollutant emissions must meet the stan-dards for carbon capture,storage,and utilization.Because of the high oxygen and moisture concentra-tions in POC,the formation of acids via the oxidation and solution of SOx and NOx can be increased,causing the corrosion of pipelines and equipment.Furthermore,particulate matter(PM)and mercury emissions can harm the environment and human health.The main distinction between pressurized and atmospheric-pressure oxy-combustion is the former's elevated pressure;thus,the effect of this pres-sure on the pollutants emitted from POC-including SOx,NOx,PM,and mercury-must be understood,and effective control methodologies must be incorporated to control the formation of these pollutants.This paper reviews recent advances in research on SOx,NOx,PM,and mercury formation and control in POC systems that can aid in pollutant control in such systems.

外文关键词：

Pressurized oxy-combustionSulfur oxidesNitrogen oxidesParticulate matterMercuryDirect contact coolerCarbon capture and sequestration

作者：

Gaofeng Dai、Jiaye Zhang、Zia ur Rahman、Yufeng Zhang、Yili Zhang、Milan Vujanovi?、Hrvoje Mikul?i?、Nebojsa Mani?、Aneta Magdziarz、Houzhang Tan、Richard L.Axelbaum、Xuebin Wang

展开 >

作者单位：

MOE Key Laboratory of Thermo-Fluid Science and Engineering,Xi'an Jiaotong University,Xi'an 710049,China

School of Ecology and Environment,Hainan University,Haikou 570228,China

Faculty of Mechanical Engineering & Naval Architecture,University of Zagreb,Zagreb 10000,Croatia

Faculty of Mechanical Engineering,University of Maribor,Maribor 2000,Slovenia

Faculty of Mechanical Engineering,University of Belgrade,Belgrade 11120,Serbia

AGH University of Krakow,Krakow 30059,Poland

Consortium for Clean Coal Utilization,Department of Energy,Environmental & Chemical Engineering,Washington University in St.Louis,St.Louis,MO 63130,USA

展开 >

基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities

项目编号：

2022YFE020660052376125

出版年：

2024

DOI：

10.1016/j.eng.2024.03.005

工程(英文)

CSTPCDEI

ISSN：2095-8099

年,卷(期)：2024.39(8)