-
1.发明授权
公开(公告)号：US5170661A
公开(公告)日：1992-12-15
申请号：US811181
申请日：1991-12-20
摘要： Generally, the invention provides a fouling probe apparatus. The fouling probe including a heat transfer conduit having a first portion formed as a loop which is removably attached to a second portion which extends linearly. A hollow housing encases the apparatus. The housing has an open forward portion and an open rear portion. The open forward portion is attachable to an oil quench tower about an opening in the quench tower and the open rear portion is adapted to be securely attached to the linearly extending second portion of the heat transfer conduit. A fouling grid is attached to the first portion of the heat transfer conduit. The fouling grid is super-heated to accelerate fouling.
-
2.发明授权Dispersing asphaltenes in hydrocarbon refinery streams with .alpha.-olefin/maleic anhydride copolymer 失效用α-烯烃/马来酸酐共聚物在烃精炼料流中分散沥青质
公开(公告)号：US5214224A
公开(公告)日：1993-05-25
申请号：US910230
申请日：1992-07-09
申请人： David G. Comer , W. Kirk Stephenson
发明人： David G. Comer , W. Kirk Stephenson
CPC分类号： C10L1/192 , C10L1/143 , C10L1/1966 , C10L10/04 , C10L1/1616 , C10L1/1855 , C10L1/1963 , C10L1/1981
摘要： Dispersing asphaltenes in liquid hydrocarbons, particularly formed during the refining of crude petroleum, is disclosed. The dispersant comprises a free radically polymerized copolymer of an .alpha.-olefin of from about 10 to about 36 carbon atoms and maleic anhydride wherein the anhydride moieties along the copolymer backbone are substantially unhydrolyzed or otherwise not derivatized. The copolymer has a ratio of .alpha.-olefin to maleic anhydride of from about 1:1 to about 1:5 and a molecular weight of from 5000 to about 100,000. Alternatively the dispersant comprises a mixture of the .alpha.-olefin/maleic anhydride copolymer and an alkyl substituted phenol/formaldehyde liquid polymer, such as nonyl phenol/formaldehyde polymer, or a lipophilic/hydrophilic vinylic polymer, such as hydroxyethyl methacrylate/lauryl acrylate copolymer. Also disclosed is a liquid hydrocarbon dispersion containing asphaltenes and 1-100 ppm of the .alpha.-olefin/maleic anhydride copolymer.
摘要翻译： 公开了在石油精炼期间特别形成的液体烃中沥青质分散体。 分散剂包含约10至约36个碳原子的α-烯烃和马来酸酐的自由基聚合共聚物，其中沿着共聚物主链的酸酐部分基本上未水解或以其它方式不衍生。 共聚物的α-烯烃与马来酸酐的比例为约1:1至约1:5，分子量为5000至约100,000。 或者，分散剂包括α-烯烃/马来酸酐共聚物和烷基取代的酚/甲醛液体聚合物如壬基苯酚/甲醛聚合物或亲脂性/亲水性乙烯基聚合物如甲基丙烯酸羟乙酯/丙烯酸月桂酯共聚物的混合物。 还公开了含有沥青质和1-100ppm的α-烯烃/马来酸酐共聚物的液体烃分散体。
-
公开(公告)号：US5100531A
公开(公告)日：1992-03-31
申请号：US687160
申请日：1991-04-18
摘要： An asphalt or asphaltene refinery anti-foulant technique comprising the use in crude oil, or crude oil fraction, streams of alkyl-substituted phenol formaldehyde liquid resins in combination with hydrophilic-lipophilic vinylic polymers. The polymeric anti-foulant is added to asphalt or asphaltene containing crude oil streams to prevent fouling of metallic, or other, i.e. ceramic, surfaces, especially heat transfer surfaces.
摘要翻译： 沥青或沥青烯炼油厂防污技术包括在原油或原油馏分中使用烷基取代的酚甲醛液体树脂与亲水亲油性乙烯基聚合物的组合。 将聚合物防污剂加入到含沥青质的原油流中以防止金属或其它陶瓷表面，特别是传热表面的结垢。
-
4.发明授权Dispersing gums in hydrocarbon streams with .beta.-olefin/maleic anhydride copolymer 失效在烃流中用β-烯烃/马来酸酐共聚物分散树胶
公开(公告)号：US5232963A
公开(公告)日：1993-08-03
申请号：US911231
申请日：1992-07-09
申请人： David G. Comer , Sherri L. Fisher
发明人： David G. Comer , Sherri L. Fisher
IPC分类号： C08J3/09
CPC分类号： C08J3/09 , C10L1/1966 , C10L10/04 , C08J2357/00 , C10L1/1981 , Y02P20/582
摘要： A method is disclosed for dispersing gums in hydrocarbon streams, particularly low molecular weight, sticky polymeric materials formed in refinery and petrochemical plant operation. The dispersant comprises a free radically polymerized copolymer of an .alpha.-olefin of from about 10 to about 36 carbon atoms and maleic anhydride wherein the anhydride moieties along the copolymer backbone are substantially unhydrolyzed. The copolymer has a ratio of olefin to maleic anhydride of from about 1 to about 0.5 and a molecular weight of from 5000 to about 100,000. The dispersant alternatively comprises a dispersant mixture wherein the first component comprises the .alpha.-olefin/maleic anhydride copolymer and the second component comprises an alkyl substituted phenol/formaldehyde liquid polymer, such as nonyl phenol/formaldehyde polymer, or a lipophilic/hydrophilic vinylic polymer, such as hydroxyethyl methacrylate/lauryl acrylate copolymer. Also disclosed is a hydrocarbon dispersion made by the method.
摘要翻译： 公开了一种用于将胶分散在烃流中的方法，特别是在炼油厂和石油化工厂操作中形成的低分子量粘性聚合材料。 分散剂包含约10至约36个碳原子的α-烯烃和马来酸酐的自由基聚合共聚物，其中沿着共聚物主链的酸酐部分基本上未水解。 共聚物的烯烃与马来酸酐的比例为约1至约0.5，分子量为5000至约100,000。 该分散剂或者包括分散剂混合物，其中第一组分包含α-烯烃/马来酐共聚物，第二组分包括烷基取代的苯酚/甲醛液体聚合物，例如壬基酚/甲醛聚合物，或亲油/亲水乙烯基聚合物， 如甲基丙烯酸羟乙酯/丙烯酸十二烷基酯共聚物。 还公开了通过该方法制备的烃分散体。
-
公开(公告)号：US5143594A
公开(公告)日：1992-09-01
申请号：US790314
申请日：1991-11-12
摘要： An asphalt or asphaltene refinery anti-foulant technique comprising the use in crude oil, or crude oil fraction, streams of alkyl-substituted phenol formaldehyde liquid resins in combination with hydrophilic-lipophilic vinylic polymers. The polymeric anti-foulant is added to asphalt or asphaltene containing crude oil streams to prevent fouling of metallic, or other, i.e. ceramic, surfaces, especially heat transfer surfaces.
-
-
-
-
搜索结果
5 条记录 (耗时 0.027 秒)
