摘要
基于实际应用和仿真模拟计算,分析了两种不同合成气洗涤冷却技术,喷雾激冷和下降管水浴激冷的优缺点。喷雾激冷由于雾化的穿透性、均匀性无法可靠保证,导致局部区域高温合成气没有有效洗涤、降温,最终导致激冷室被烧损。下降管激冷方式采用激冷筒为粗合成气水浴提供通道,筒壁旋流液膜能有效保护激冷筒自身免受熔渣及高温气体的影响,同时液膜表面形成泡核蒸发降低气体温度,粗合成气水浴时能将粗合成气中夹带的大部分灰洗除,因此洗涤、降温效果较好。
Based on actual application and simulation calculation, advantages and disadvantages of two different syngas washing technologies including spray chilling and water bath chilling were analyzed,. The research results show that penetrating and uniformity of the spray chilling are not reliable, which can not cool local high temperature syngas effectively, eventually lead to the burning loss of quench chamber. Water bath chilling in vertical pipe can provide channels for crude high temperature syngas, where liquid membrane can effectively protect quench tube from the slag and high temperature gas, at the same time nucleate evaporation can be performed in liquid membrane surface to decrease the temperature of the gas and wash the dust in the crude syngas. So, washing and cooling effect of the water bath chilling was better.
出处
《当代化工》
CAS
2016年第4期809-812,共4页
Contemporary Chemical Industry
关键词
气化
激冷
合成气
Gasification
Quench
Syngas
