化工技术与开发
化工技術與開髮
화공기술여개발
TECHNOLOGY & DVELOPMENT OF CHEMICAL INDUSTRY
2013年
2期
9-12
,共4页
张海燕%朱俊哲%石海信%钟莹莹
張海燕%硃俊哲%石海信%鐘瑩瑩
장해연%주준철%석해신%종형형
高剪切%脱臭%硫醇%结构
高剪切%脫臭%硫醇%結構
고전절%탈취%류순%결구
high sheer-dispersing%sweetening process%mercaptan%structures
在高剪切分散乳化机的作用下对含有不同结构硫醇的油样进行脱臭,通过改变加入硫醇的种类和含量,考察了不同结构硫醇脱臭的差别及其相互作用.实验结果表明,不同结构的硫醇其氧化脱除速度不同,碳链越长,异构程度越大,氧化脱除的速度越慢.但由于高剪切分散乳化机高效的混合效率,提高了脱臭效率,彼此间的差别大大减小.向叔丁硫醇中加入其它结构简单的硫醇后,可以促进叔丁硫醇的氧化脱除,并利用负离子-自由基机理对上述现象进行了解释.
在高剪切分散乳化機的作用下對含有不同結構硫醇的油樣進行脫臭,通過改變加入硫醇的種類和含量,攷察瞭不同結構硫醇脫臭的差彆及其相互作用.實驗結果錶明,不同結構的硫醇其氧化脫除速度不同,碳鏈越長,異構程度越大,氧化脫除的速度越慢.但由于高剪切分散乳化機高效的混閤效率,提高瞭脫臭效率,彼此間的差彆大大減小.嚮叔丁硫醇中加入其它結構簡單的硫醇後,可以促進叔丁硫醇的氧化脫除,併利用負離子-自由基機理對上述現象進行瞭解釋.
재고전절분산유화궤적작용하대함유불동결구류순적유양진행탈취,통과개변가입류순적충류화함량,고찰료불동결구류순탈취적차별급기상호작용.실험결과표명,불동결구적류순기양화탈제속도불동,탄련월장,이구정도월대,양화탈제적속도월만.단유우고전절분산유화궤고효적혼합효솔,제고료탈취효솔,피차간적차별대대감소.향숙정류순중가입기타결구간단적류순후,가이촉진숙정류순적양화탈제,병이용부리자-자유기궤리대상술현상진행료해석.
@@@@By changed the kind and concentration of mercaptans in analog gasoline, the effect of the structure on the sweetening efficiency was studied by high speeding shearing emulsifier. The results showed that the structure of different mercaptans had a significant effect on the sweetening process. It was more difficult to oxide the mercaptans with longer hydrocarbon chains and side chains. Due to the highly mix efficiency of high speed shearing emulsifier, the differences on oxidation of mercaptans with different structure were less remarkable. Adding mercaptans with less side chain could accelerate the oxidation of 2-Methyl-2-propanthiol. Results were well explained by ion-free radical sweetening mechanism.