摘要
提出了由流化床与多段冷激式绝热固定床串联的新型HCl氧化制氯反应工艺.通过物料、能量、动量衡算建立了绝热反应器一维数学模型,对绝热固定床反应器段间冷激气种类、流率、流化床反应器进口处HCl与O2摩尔配比及催化剂用量等工艺参数进行了优化计算.结果表明,液态氧为较适宜的冷激气,流化床反应器入口处最佳HCl与O2摩尔配比为1:0.7,流化床和绝热床中最佳催化剂用量分别为4.3与8.6 t,在该条件下,HCl转化率可达85%.
A novel HCl oxidation technology combining fluidized bed reactor（FBR） with multi-stage adiabatic fixed bed reactor（MSAFBR） in series was proposed. The operational parameters of HCl oxidation process, such as variety and flow rate of quench gas between MSAFBR, molar ratio of HCl to O2 in feed gas and catalyst dosage, were optimized based on the mathematic one-dimensional model established on the mass, energy and momentum balances. The results showed that liquid oxygen was more suitable in this technology. With liquid oxygen as the quenching gas, the effects of composition of the feed gas on optimum operating curve and catalyst dosage were investigated. The results demonstrated that the least amount of catalyst used in FBR and MSAFBR was 4.3 and 8.6 t, respectively, when the flow rate ratio of HCl to O2 in feed gas was 1：0.7. Meanwhile, under the best flow rate of liquid O2, HCl conversion rate of 85% could be obtained.
出处
《过程工程学报》
CAS
CSCD
北大核心
2015年第1期55-61,共7页
The Chinese Journal of Process Engineering
基金
国家科技支撑计划资助项目(编号:2011BAE18B01)
国家自然科学基金资助项目(编号:21306089)
江苏省高校自然科学基金面上项目资助(编号:13KJB530006)
中国博士后基金资助项目(编号:2013M531340)
关键词
模拟
多段绝热
冷激换热
HCl催化氧化
液态氧
modeling
multi-stage adiabatic fixed bed reactor
quenching
HCl oxidation
liquid oxygen
