Immigration, transformation, and emission control of sulfur and nitrogen during gasification of MSW: Fundamental and engineering review

IF 6.4 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion Pub Date : 2023-09-01 DOI:10.1016/j.crcon.2023.03.003

Shuchao Cheng , Xueyu Ding , Xinxin Dong , Mengjie Zhang , Xinqi Tian , Yang Liu , Yaji Huang , Baosheng Jin

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Abstract

This paper proposes a comprehensive summary and analysis of an important issue during municipal solid waste (MSW) gasification-sulfur and nitrogen pollution. It provides an overview of the fundamentals of MSW and the basic aspects of nitrogen and sulfur elements. Their characteristics of immigration, transformation and distribution during gasification with control solutions in realized or potential engineering are also concluded. The analysis indicates that the complete scenario of the occurrence form of sulfur and nitrogen elements in MSW is difficult to obtain, owing to the diverse sources and complicated compositions. However, with the assistance of advanced characterization and quantification methods (XPS, XRD, TG-FTIR, et al.), the common sulfur- and nitrogen-containing compounds in both organic and inorganic states can be detected. Adjustment of gasification conditions can regulate the transformation of these elements for emission control. The multiple pollutants including H₂S, SO_x, COS, NH₃, HCN and NO_x cannot be eliminated by one-step treatment but a combination of adsorption and catalytic treatments may realize the control goal. This research aims to benefit meeting emission standards during MSW gasification and to provide a reference for other processes such as incineration, pyrolysis and other feedstocks like biomass and refuse derived fuel (RDF).

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城市生活垃圾气化过程中硫和氮的迁移、转化和排放控制：基础和工程综述

本文对城市生活垃圾气化过程中的一个重要问题——硫氮污染进行了全面的总结和分析。它概述了城市生活垃圾的基本原理以及氮和硫元素的基本方面。总结了它们在气化过程中的迁移、转化和分布特点，以及在已实现或潜在工程中的控制方案。分析表明，由于城市生活垃圾中硫、氮元素来源多样，组成复杂，难以获得硫、氮元素赋存在形态的完整情景。然而，借助先进的表征和定量方法(XPS, XRD, TG-FTIR等)，可以检测到有机和无机状态的常见含硫和含氮化合物。调节气化条件可以调节这些元素的转化，达到控制排放的目的。H2S、SOx、COS、NH3、HCN、NOx等多重污染物不能通过一步法去除，吸附和催化联合处理可实现控制目标。本研究旨在为满足城市生活垃圾气化过程中的排放标准提供参考，并为其他过程如焚烧、热解以及其他原料如生物质和垃圾衍生燃料(RDF)提供参考。

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来源期刊

Carbon Resources Conversion Materials Science-Materials Science (miscellaneous)

CiteScore

9.90

自引率

11.70%

发文量

审稿时长

10 weeks

期刊介绍： Carbon Resources Conversion (CRC) publishes fundamental studies and industrial developments regarding relevant technologies aiming for the clean, efficient, value-added, and low-carbon utilization of carbon-containing resources as fuel for energy and as feedstock for materials or chemicals from, for example, fossil fuels, biomass, syngas, CO2, hydrocarbons, and organic wastes via physical, thermal, chemical, biological, and other technical methods. CRC also publishes scientific and engineering studies on resource characterization and pretreatment, carbon material innovation and production, clean technologies related to carbon resource conversion and utilization, and various process-supporting technologies, including on-line or off-line measurement and monitoring, modeling, simulations focused on safe and efficient process operation and control, and process and equipment optimization.