摘要
用正交试验方法对结焦含量为０．１％、０．８％、２．５％的失活５Ａ分子筛分别进行空气燃烧除焦再生试验。方差分析结果显示，温度是影响再生效果的关键因素。试验结果表明，在３５０℃、空气流速为１．０ｍ／ｍｉｎ和时间为２ｈ的再生条件下，三种结焦含量不同的失活５Ａ分子筛动态吸附性能和比表面积均能恢复到９０％以上，能够满足工业上重新应用的要求。
In this paper,by combustion in a stream of air,orthogonal experiments are designed to rege nerate three kinds of 5A molecular sieve,with coke contents of 0 1%,0 8% and 2 5% by mass respectively The temperature is the leading factor of regeneration according to the results of variance analysis When the regeneration temperature is 350 ℃,air flow 1 0 m/min and regeneration time 2 h,the specific surface area and dynamic adsorption capacity of the three kinds of 5A mole cular sieve can be recovered to the extent of 90% of fresh 5A molecular sieve,which meet the requirememts of reuse in the separation of normal paraffins
出处
《石油化工》
CAS
CSCD
北大核心
1998年第10期727-731,共5页
Petrochemical Technology
基金
中国石化总公司资助项目
关键词
5A分子筛
失活
再生
吸附剂
分子筛
A molecular sieve,coke,deactivation,orthogonal experiments,regeneration
