文献类型：期刊文献

中文题名：水煤浆气化装置水洗过程的建模与优化

英文题名：Modeling and optimization of scrubbing process of coal-water slurry gasification plant

作者：彭伟锋[1];钟伟民[1];程辉[1];孔祥东[1];钱锋[1]

机构：[1]华东理工大学,化工过程先进控制和优化技术教育部重点实验室,上海200237

年份：2011

卷号：28

期号：12

起止页码：1515

中文期刊名：计算机与应用化学

外文期刊名：Computers and Applied Chemistry

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目(60804029);国家高技术研究发展计划(863)(2009AA04Z159);上海科技攻关项目(10111100103);上海市基础研究重点项(10JC1403400);上海市重点学科建设项目资助(B504)

语种：中文

中文关键词：水煤浆气化;水洗过程;建模;灵敏度分析;水汽比优化

外文关键词：coal-water slurry gasification, scrubbing process, modeling, sensitivity analysis, optimization

摘要：煤气化技术的发展不仅提高了煤炭的高效清洁综合利用,同时也减小了煤直接燃烧造成的环境污染。煤气化过程的建模与优化具有十分重要的现实意义。本文基于化工分离技术,建立了水煤浆气化装置水洗过程的模型,并实现了流程模拟。模拟结果与实际工业过程数据相符,模型具有一定的精度。通过灵敏度分析,考察了变换冷凝液的流量和温度,水洗塔出口压力,进口粗合成气的温度、压力、负荷等关键操作参数对出口合成气水汽比的影响。分析结果表明,合成气中的水汽比随着变换冷凝液流量的增加而减小,温度的升高而增加;进口粗合成气对水汽比的大小影响较大,流量越大、温度越高,则水汽比越大;而水洗塔出口压力对水汽比的影响较小,随着压力增加水汽比有一定的减小。根据灵敏度分析的结果,对水煤浆气化装置进行了工艺操作参数的优化,提高了合成气中的水汽比,使之更利于后续工段的生产。
Coal gasification technology has greatly enhanced the efficient and clean use of coal. Also, it reduced the pollution caused by coal combustion. It has a great practical significance that modeling and optimization of coal gasification process. The scrubbing process model of coal-water slurry gasification was established based on the separation technology of chemical engineering. The model was verified by the industrial data, and it had high accuracy. The effects of temperature and flow rate of the condensate and temperature, pressure and flow rate of the inlet raw gas and pressure of the water scrubbing tower on the water/vapor ratio of the outlet syngas were investigated using sensitivity analysis. The results of sensitivity analysis show that the water/vapor ratio of outlet syngas would increase with rising condensate temperature or inlet raw gas temperature and flow rate. Increasing the pressure of water scrubbing tower and inlet raw gas or flow rate of condensate would cause a reduction in the water/vapor ratio of outlet syngas. According to the results of sensitivity analysis, the operating parameters of coal-water slurry gasification plant were optimized. The water/vapor ratio was increased, which is more helpful to the subsequent section in the production.