生物沼气加压水洗脱碳过程研究及其控制系统设计  

Biogas upgrading process with high pressure water scrubbing and its control system

作　　者：牛超[1] 薄翠梅[1] 丁键[2] 

机构地区：[1]南京工业大学电气工程与控制科学学院,江苏南京211816 [2]南京工业大学材料化学国家重点实验室,江苏南京210009

出　　处：《现代化工》2017年第3期171-174,176,共5页Modern Chemical Industry

基　　金：国家自然科学基金项目(61673205);江苏省自然科学基金项目(BK20141461);江苏省研究生科研创新计划项目(SJLX15-0339)

摘　　要：针对生物沼气加压水洗脱碳过程,进行工艺与动态特性分析。影响加压水洗脱碳过程的主要因素有液气比(进液流量与进气流量之比)、吸收压力、吸收温度等。液气比的增大、较高的吸收压力和低温均有利于提高CO_2的吸收率。以产品气CO_2体积分数低于3%和节能环保为目标,确定最优工艺参数,设计自动控制系统。对设计的系统进行实验,结果表明,所设计的控制系统稳定性高,控制效果良好,CO_2脱除率高。The process and dynamic performance of biogas upgrading with high pressure water scrubbing are analyzed. The main factors affecting the process are analyzed,including the gas / water flow-ratio,pressure,temperature,and so on. The carbon dioxide removal rate is increased by increasing the water / gas flow-ratio and the pressure,or decreasing the temperature. With carbon dioxide content less than 3%,energy saving and environmental protection as the target,the optimal process parameters are determined and automatic control system is designed. The results show that the automatic control system is stable and effective. The carbon dioxide removal rate is high.

关 键 词：沼气脱碳 加压水洗 动态控制系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]