检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:刘宇[1] 刘辉[2] 郑卓 李红娟[4] 梁立柱[1] 许芳
机构地区:[1]中国石油吉林石化公司研究院,吉林吉林132021 [2]中国石油吉林石化公司包装制品厂,吉林吉林132021 [3]中国石油吉林石化公司精细化学品厂,吉林吉林132021 [4]中国石油吉林石化公司丙烯腈厂,吉林吉林132021
出 处:《化工科技》2017年第5期39-43,共5页Science & Technology in Chemical Industry
摘 要:采用真空反应精馏装置模拟苯乙烯减压精馏工艺条件,分别对2-仲丁基-4,6-二硝基苯酚(DNBP)、4-羟基-2,2,6,6-四甲基哌啶-1-氧自由基(OH-TEMPO)、N,N-二乙基羟胺(DEHA)3种单一阻聚剂和以DNBP为主体,分别加入OH-TEMPO、DEHA复配成二元复配阻聚剂进行详细的动态评价,得出复配阻聚剂的最佳使用条件为m(DNPB)∶m(OH-TEMPO)=1∶1,m(复配阻聚剂)∶m(苯乙烯)=0.025%,诱导期85min,在220min时间段内有明显的缓聚效果。通过对苯乙烯精馏阻聚剂动态评价的研究,为装置引进新型阻聚剂搭建了实验室评价平台。With vacuum distillation device used for Styrene rectification,taking 2-isobutyl-4,6-bis(DNBP),4-nitro phenol hydroxy-2,2,6,6-methyl piperidine tetra-1-oxygen free radical(OH-TEMPO),N,N-bis-ethyl hydroxylamine(DEHA)as the single inhibitor,(DNBP+TEMPO),(DNBP+DEHA)as dual compound inhibitor,dynamic evaluation experiments were carried out in the device said above.The optimum operating conditions for the use of the composite polymerization inhibitor were obtained as follows:compound inhibitor m(DNPB)∶m(OH-TEMPO)= 1∶1,added amount of 0.025%,induction period of 85 min,in the duration of 220 min,the inhibitor in the period has obvious effect of lowering polymerization;Based on the research of the dynamic evaluation method and the dynamic evaluation of the styrene polymerization inhibitor,an experimental evaluation platform was built for the introduction of the new inhibitor.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28