%0 Journal Article
%T PreparationandAnti-cokingPropertyofSiO2/SCoatingonHP40Tube
%A 周建新
%A 徐宏
%A 张莉
%A 刘京雷
%A 戚学贵
%A 彭博
%J 过程工程学报
%D 2007
%X SiO2/ScoatingwaspreparedontheinnersurfaceofanHP40tubeusingdimethyldisulfideandtetraethylorthosilicatebyatmosphericpressurechemicalvapordeposition(APCVD)toalleviatecatalyticcokingontheinnersurfaceofradianttubeforethyleneproductioninpetrochemicalplants.ThecomparativecokingexperimentswiththecoatedanduncoatedHP40tubeswerecarriedoutunderthesamecrackingconditions.SiO2/Scoatingwascompactandhadexcellentanti-cokingproperty.ThecokeonthecoatedHP40tubewasabout22%ofthatontheuncoatedHP40tube,andonlysmallgranularcokewasdepositedonthecoatedHP40tube.However,thefilamentouscokeformedontheuncoatedHP40tube.ThethermalstabilityofSiO2/Scoatingwassatisfactoryatcrackingtemperature,andtheanti-cokingpropertyofSiO2/Scoatingwasstillover60%after3cokinganddecokingcycles.
%K atmosphericpressurechemicalvapordepo
%K SiO2/Scoating
%K HP40tube
%K coke
%U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=666