摘要
采用α-萘酚与对氨基苯磺酸重氮盐之间的串联竞争反应为测试体系,在直径为1 m的滴流床加氢反应器内,研究了气体流量（G）、液体流量（L）、喷射比（p）等参数对喷射旋流式冷氢箱微观混合过程的影响,并以离集指数（X_S）表征了微观混合性能。结果表明：喷射旋流式冷氢箱内液体的微观混合效果随着G的增加而显著提高,随着L的增加而明显变差;基于团聚模型计算了喷射旋流式冷氢箱的微观混合时间为20~80 ms,小于传统的旋流式冷氢箱,且与机械搅拌反应器处于同一量级,表明喷射旋流式冷氢箱具有优异的微观混合性能。
With series competition reaction between a - naphthol and diazotized sulphanilic acid as the testing system, the effects of the parameters, including gas flow, liquid flow, ratio of jet gas, etc, on micromixing process of gas - sparged swirling - type quench box and the micromixing performance was characterized by segregation index in the tricklebed hydrogenation reactor with a diameter of 1 m. With the increasing of gas flow, the mi- cromixing effect of gas - sparged swirling - type quench box increased remarkably, and with the de- creasing of liquid flow,its effect became worse obvi-ously. On the basis of cromixing time 20 - 80 n ms corporati of gas - on mod sparged el, the miswirling - type quench box was calculated and it was shorter than that of traditional swirling - type quench box; the gas - sparged swirling - type quench box were in the same magnitude order as the mechanically stirred tank, which indicated that the former had superior micromixing performance.
出处
《石化技术与应用》
CAS
2016年第4期265-269,共5页
Petrochemical Technology & Application
基金
中国石油天然气集团公司"千万吨级大型炼厂成套技术研究开发与工业应用"项目资助(项目编号:2010 E-2004-02)
关键词
喷射旋流式冷氢箱
微观混合
团聚模型
微观混合时间
gas -sparged swirling- type quenchbox
micromixing
incorporation model
micromixing
