CBA硫磺回收反应器技术改造探讨
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摘要
CBA反应器是美国BV公司四级转化冷床吸附(Cold Bed Adsorption,以下简称CBA)工艺中的重要设备。在重庆天然气净化总厂引进分厂CBA装置各级反应器人孔处多次出现耐火衬里垮塌、催化剂泄漏,引起液硫管线堵塞,从而造成多次临停事故。针对这一问题,对该处衬里垮塌分别从工艺和设备两方面的原因进行了分析。最后从工艺方面提出了低负荷运行时加燃料气与酸气混烧以提高反应器温度的改造方案,从设备方面提出了对人孔附近保温结构、本体结构、衬里结构等多方面进行改进的改造方案,经过上述技术改造后效果明显。
CBA reactor is the crucial equipment of four-stage transformation cold bed adsorption technology of the BV Company.In Yinjin Branch of Chongqing Natural Gas Purification Plant General,there were many times of temporary shutdown incidents caused by the collapse of refractory liner and the leakage of catalyst at the manholes of the Claus reactors,which result in choking up of liquid sulfur pipeline.Reasons based on technology and equipment were analyzed. As a result,in the chemical technology aspects,it was pointed out that adding fuel gas mixing with the acid gas could increase the temperature of reactors under low load operation.In the aspect of equipment,improving the insulation construction,ontology structure and inside structure near the manholes were proposed.The technical renovation schemes have already made a significant difference.
CBA reactor is the crucial equipment of four-stage transformation cold bed adsorption technology of the BV Company.In Yinjin Branch of Chongqing Natural Gas Purification Plant General,there were many times of temporary shutdown incidents caused by the collapse of refractory liner and the leakage of catalyst at the manholes of the Claus reactors,which result in choking up of liquid sulfur pipeline.Reasons based on technology and equipment were analyzed. As a result,in the chemical technology aspects,it was pointed out that adding fuel gas mixing with the acid gas could increase the temperature of reactors under low load operation.In the aspect of equipment,improving the insulation construction,ontology structure and inside structure near the manholes were proposed.The technical renovation schemes have already made a significant difference.
引文
[1]熊勇,张廷洲,王军,等.重庆天然气净化总厂引进分厂适应性改造情况综述[J].石油与天然气化工,2010,39(S1):9-12.
[2]王军,岑永虎,张有军,等.引进分厂CBA硫磺回收装置操作改进[J].石油与天然气化工,2010,39(S1):31-34,43.
[3]傅敬强,万义秀.五种克劳斯延伸硫磺回收装置运行情况的对比分析[J].石油与天然气化工,2012,41(2):148-155,168.
[4]艾松柏,张瑞萍,扈兴茹,等.Claus硫磺回收装置设备腐蚀分析及对策[J].广州化工,2012,40(2):123-147.
[5]张平喜.硫磺回收装置的腐蚀与防护[J].全面腐蚀控制,2005,19(5):36-39.
[6]唐志永.湿法脱硫后燃煤电站尾部装置腐蚀研究[D].南京:东南大学,2006.
[7]程祖锋.建筑基础腐蚀性试验与评价研究[D].长春:吉林大学建设工程学院,2006.
[8]廖铁,闵杰,苏梦瑶,等.万州天然气净化装置运行评价[J].石油与天然气化工,2012,41(3):276-280.
[9]周彬,廖铁.CPS硫磺回收工艺在万州分厂的应用[J].石油与天然气化工,2010,39(S1):16-19.
[2]王军,岑永虎,张有军,等.引进分厂CBA硫磺回收装置操作改进[J].石油与天然气化工,2010,39(S1):31-34,43.
[3]傅敬强,万义秀.五种克劳斯延伸硫磺回收装置运行情况的对比分析[J].石油与天然气化工,2012,41(2):148-155,168.
[4]艾松柏,张瑞萍,扈兴茹,等.Claus硫磺回收装置设备腐蚀分析及对策[J].广州化工,2012,40(2):123-147.
[5]张平喜.硫磺回收装置的腐蚀与防护[J].全面腐蚀控制,2005,19(5):36-39.
[6]唐志永.湿法脱硫后燃煤电站尾部装置腐蚀研究[D].南京:东南大学,2006.
[7]程祖锋.建筑基础腐蚀性试验与评价研究[D].长春:吉林大学建设工程学院,2006.
[8]廖铁,闵杰,苏梦瑶,等.万州天然气净化装置运行评价[J].石油与天然气化工,2012,41(3):276-280.
[9]周彬,廖铁.CPS硫磺回收工艺在万州分厂的应用[J].石油与天然气化工,2010,39(S1):16-19.