基于MgO/NaClO2的燃煤工业锅炉同时脱硫脱硝反应特性及机理研究

项目名称： 基于MgO/NaClO2的燃煤工业锅炉同时脱硫脱硝反应特性及机理研究

项目编号： No.51508188

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 其他

项目作者： 刘凤

作者单位： 华北电力大学（保定）

项目金额： 20万元

中文摘要： 作为雾霾的重要污染源，燃煤工业锅炉的同时脱硫脱硝一直是该领域的难点。本课题拟以燃煤工业锅炉常用的氧化镁(MgO)脱硫工艺为基础，以亚氯酸钠(NaClO2)为添加剂，开展回收型MgO/NaClO2同时脱硫脱硝技术的基础研究，主要内容包括：(1) MgO/NaClO2同时脱硫脱硝的反应特性；(2) MgO/NaClO2同时脱硫脱硝反应的本征和宏观反应动力学研究；(3) MgO/ NaClO2同时脱硫脱硝的反应机理。本课题旨在为燃煤工业锅炉大气污染控制提供技术支持，并为解决NaClO2类脱硫脱硝技术的Cl-腐蚀及二次污染问题奠定理论基础。

中文关键词： 烟气脱硫脱硝；氧化镁；亚氯酸钠；燃煤工业锅炉；反应动力学

英文摘要： Simultaneous desulfurization and denitrification of industrial coal-fired boiler, one of very important pollution sources resulting in haze, is always a difficult subject in this field. In this proposal, a fundamental research will be carried out to develop an efficient simultaneous removal technology for SO2 and NOx based on the magnesium oxide (MgO) desulfurization technology popularly used for industrial coal-fired boiler in which sodium chlorite (NaClO2) will be added as an additive for denitrification. The research contents can be concluded as follows: (1) reaction characteristics of removing SO2 and NOx by MgO/NaClO2; (2) intrinsic and macroscopic reaction kinetics for removing SO2 and NOx by MgO/NaClO2; (3) mechanism of removing SO2 and NOx by MgO/NaClO2. This proposal will be significant for the control of SO2 and NOx from industrial coal-fired boilers and be served as a theoretical underpinning for eliminating corrosion and secondary pollution caused by Cl- commonly produced in NaClO2-used technologies.

英文关键词： flue gas desulfurization and denitrification;magnesium oxide;sodium chlorite;industrial coal-fired boiler;reaction kinetics