高硫煤合理分选与减少重庆市二氧化硫排放的途径分析

REASONABLE SEPARATION OF HIGH SULFUR COAL AND DECREASING SO2 EMISSION IN CHONGQING CITY

通过对南桐矿务局多年来在高硫煤洗选加工、烟道气脱硫、燃烧固硫及高温固硫添加剂上所做工作的分析总结，提出“配煤＋筛分降硫＋洗选脱硫＋固硫添加剂掺配＋副产品选硫”等一条龙洁净煤技术的综合应用，是高硫动力煤合理分选、洁净利用的发展方向。与单纯烟道气脱硫、重庆市主城区“煤改气”脱硫的技术经济比较，指出发展洁净煤技术是重庆市当前经济技术条件下，大幅度减少二氧化硫排放的有效途径，并呼吁对符合要求的洁净煤产品给予政策上的扶持。

A integration route of clean coal technologies including blending + screening to remove sulfur + washing to remove sulfur + to blend desulfurization agent + to recovery sulfur from by product is presented based on to summarize the high sulfur coal preparation, flue gas desulfurization, combustion desulfurization and high temperature desulfurization additive agent etc. development work in Nantong Coal Mine Administration. This route is a development direction for reasonable separation and use of high sulfur steam coal. Comparison with the technical economic of single flue gas desulfurization and to replace coal by gas in Chongqing main district, to develop clean coal technologies for decreasing SO 2 emission is a effective method depend upon the current situation of economic and technique in Chongqing. A policy support is needed for the cleaning coal products.