海水脱硫技术在船舶废气处理上的研究进展

doi:10.16085/j.issn.1000-6613.2016.01.038

化工进展 ›› 2016, Vol. 35 ›› Issue (01): 277-284.DOI: 10.16085/j.issn.1000-6613.2016.01.038

海水脱硫技术在船舶废气处理上的研究进展

张清凤, 陈晓平, 余帆

东南大学能源与环境学院, 能源热转换及其过程测控教育部重点实验室, 江苏南京 210096

收稿日期:2015-07-21 修回日期:2015-09-04 出版日期:2016-01-05 发布日期:2016-01-05
通讯作者: 陈晓平,教授,博士生导师,研究方向为气固两相流、大气污染控制等。E-mail:xpchen@seu.edu.cn。
作者简介:张清凤(1991-),女,硕士研究生。
基金资助:
国家自然科学基金面上项目(51276036)。

A review of seawater desulphurization technology on ship exhaust treatment

ZHANG Qingfeng, CHEN Xiaoping, YU Fan

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, Jiangsu, China

Received:2015-07-21 Revised:2015-09-04 Online:2016-01-05 Published:2016-01-05

摘要/Abstract

摘要： 随着船舶硫氧化物的排放形势日益严峻,海水脱硫技术因具有运行成本低、脱硫剂资源丰富、无固体废弃物等优点在船舶脱硫领域受到广泛关注。本文分析了脱硫塔类型、海水碱度、海水盐度、Ca²⁺等金属阳离子、温度、液气比和SO₂初始浓度等因素对海水脱硫效率的影响,指出增加碱度是提高脱硫效率最直接有效的方式。综述了如何提高海水碱度、减少海水脱硫系统的占用面积和同时脱硫脱硝等研究热点,并针对船舶的移动性,分析了海水脱硫技术用于船舶仍存在的主要问题。提出在不影响脱硫设备可靠性的前提下,开发环保高效的添加剂将是海水碱度研究的重点,指出在脱硫塔内高效氧化SO₃^2-是减少海水脱硫系统占用面积的重要研究思路。未来应用在船舶上的海水脱硫技术将沿着高效型、经济型、环境友好型的方向发展。

关键词: 船舶, 环境, 海水, 污染, 脱硫效率, 氧化

Abstract: The situation of SO_x emission from ships is becoming increasingly serious. Seawater desulphurization technology is paid great attention due to its advantages, such as low operation cost, abundant resources of desulfurizer and non-solid waste. The effects of alkalinity and salinity of seawater, metal cations such as Ca²⁺, temperature, liquid-gas ratio and SO₂ initial concentration on desulfurization efficiency were analyzed. Improving alkalinity of seawater is proposed to be the most direct and efficient way to enhance desulfurization efficiency. Research hotspots, including how to increase alkalinity of seawater, how to decrease the size of desulphurization system and how to removal SO_x and NO_x simultaneously, were outlined. According to mobility of ship, problems existed in applying seawater desulfurization technology to ship were introduced. Without influence on reliability of desulfurization equipment, developing environmental and efficient additives will be a focus of study on improving alkalinity of seawater. How to oxidize SO₃^2- efficiently in desulfurization tower provides a vital research orientation in term of reduction on the size of desulfurization system. Seawater desulphurization technology applied to ships in the future will be developed in a more efficient, economic and environment-friendly way.

Key words: ship, environment, seawater, pollution, desulfurization efficiency, oxidation

中图分类号:

X511

张清凤, 陈晓平, 余帆. 海水脱硫技术在船舶废气处理上的研究进展[J]. 化工进展, 2016, 35(01): 277-284.

ZHANG Qingfeng, CHEN Xiaoping, YU Fan. A review of seawater desulphurization technology on ship exhaust treatment[J]. Chemical Industry and Engineering Progree, 2016, 35(01): 277-284.

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海水脱硫技术在船舶废气处理上的研究进展

A review of seawater desulphurization technology on ship exhaust treatment

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