Hydrogenated alkyl aromatics as petroleum distillate fuel cold flow improvers
阅读：493发布：2023-01-07
专利汇可以提供Hydrogenated alkyl aromatics as petroleum distillate fuel cold flow improvers专利检索，专利查询，专利分析的服务。并且Hydrogenated alkyl aromatics are useful as petroleum oil additives such as wax crystal modifiers and cold flow improvers for petroleum oils, e.g. atmospheric distillate fuels, particularly when used in combination with ethylene backbone middle distillate pour point depressants such as branched polyethylene, copolymers of 4 to 30 molar proportions of ethylene with an unsaturated ester, e.g. vinyl acetate, or another olefin, etc.，下面是Hydrogenated alkyl aromatics as petroleum distillate fuel cold flow improvers专利的具体信息内容。
1. A DISTILLATE PETROLEUM FUEL OIL HAVING AT LEAST A MAJOR PROPORTION BOILING IN THE RANGE OF ABOUT 250* TO 700*F., IMPROVED IN ITS FLOW PROPERTIES BY 0.01 TO 3 WT. % OF A FLOW IMPROVING HYDROGENATED ALKYL AROMATIC FRACTION OF AN AMORPHOUS NORMALLY SOLID WAX HAVING A METLING POINT IN THE RANGE OF ABOUT 80* TO 200*F. AND A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 600 TO ABOUT 3,00 ABRAINED FROM A RESIDUAL PETROLEUM OIL.
2. ethylene polymer chlorinated to contain about 1 to 30 wt. % chlorine, and
2. A distillate petroleum fuel oil having at least a major proportion boiling in the range of about 250* to 700*F., improved in its flow properties by containing in the range of about 0.01 to 3 wt. % of a hydrogenated alkyl aromatic selected from the group consisting of: a. hydrogenated wax aromatic pour point depressant which is the Friedel-Crafts condensation product of wax having a melting point of about 100* to 200*F. chlorinated to about 5 to 25 wt. % chlorine and condensed with an aromatic in a relative weight ratio of about 5 to 15 parts of chlorinated wax per part of said aromatic, and b. a hydrogenated alkyl aromatic fraction of an amorphous normally solid wax having a melting point in tHe range of about 80* to 200*F. and a molecular weight in the range of about 600 to about 3,000 obtained from a residual petroleum oil, and in the range of about 0.001 to 2 wt. % of an ethylene backbone pour point depressant which has a molecular weight in the range of about 500 to 50,000 and is selected from the group consisting of:
2. ethylene polymer chlorinated to contain about 1 to 30 wt. % chlorine, and
3. copolymers of 3 to 40 molar proportions of ethylene with a C3 to C16 alpha monoolefin, or a mono-ethylenically unsaturated mono- or dialkyl ester having about 1 to 16 carbon atoms in said alkyl groups, and wherein the relative ratio of Said hydrogenated alkyl material to said ethylene backbone pour point depressant is in the range of about 0.5 to 10 parts by weight of said hydrogenated alkyl aromatic per part by weight of said ethylene backbone pour point depressant.
3. A distillate fuel oil according to claim 2, wherein said hydrogenated alkyl aromatic is hydrogenated wax-naphthalene, and said ethylene backbone pour point depressant is a copolymer of 4 to 20 molar proportions of ethylene with a molar proportion of unsaturated alkyl ester.
3. copolymers of 3 to 40 molar proportions of ethylene with a C3 to C16 alpha monoolefin, or a mono-ethylenically unsaturated mono- or dialkyl ester having about 1 to 16 carbon atoms in said alkyl groups, wherein the relative ratio of said hydrogenated alkyl aromatic to said ethylene backbone pour point depressant is in the range of about 0.5 to 10 parts by weight of said hydrogenated alkyl aromatic per part by weight of said ethylene backbone pour point depressant, and wherein said combination of said hydrogenated alkyl aromatic and said ethylene backbone pour point depressant shows synergy in improving the flow properties of said oil.
4. A fuel oil according to claim 3, wherein said unsaturated ester is a vinyl ester of a C2 to C5 fatty acid.
5. A distillate fuel oil according to claim 4, wherein said copolymer is a copolymer of 4 to 20 molar proportions of ethylene per molar proportion of vinyl acetate, and wherein said copolymer has a molecular weight in the range of about 1000 to 5,000.
6. A distillate fuel oil according to claim 2, wherein said hydrogenated alkyl aromatic is said hydrogenated alkyl aromatic fraction of said amorphous normally solid wax, which has a molecular weight in the range of about 600 to about 1,500 and is essentially free of normal paraffinic hydrocarbon, and said ethylene backbone pour point depressant is a copolymer of ethylene and said unsaturated alkyl ester.
7. A distillate fuel oil according to claim 6, wherein said copolymer is a copolymer of 4 to 20 molar proportions of ethylene per molar proportion of vinyl acetate, and said copolymer has a molecular weight of about 1,000 to 5,000.
8. An additive concentrate, useful for treating fuel oils to improve the flow properties thereof, comprising an oil solution of a mixture of 3 to 60 wt. % of a hydrogenated alkyl aromatic selected from the group consisting of: a. hydrogenated wax naphthalene pour point depressant which is the Friedel-Crafts condensation product of wax having a melting point of about 100* to 200*F. chlorinated to about 5 to 25 wt. % chlorine and condensed with naphthalene in a relative weight ratio of about 5 to 15 parts of chlorinated wax per part of said aromatic, and b. a hydrogenated alkyl aromatic fraction of an amorphous normally solid wax having a molecular weight in the range of about 600 to about 3,000 obtained from a residual petroleum oil, and an ethylene backbone pour point depressant having a molecular weight of about 500 to 50,000 and selected from the group consisting of:
9. A concentrate according to claim 8, wherein said hydrogenated alkyl aromatic is said hydrogenated wax naphthalene pour point depressant, wherein said ethylene backbone pour point depressant is a copolymer of 4 to 20 molar proportions of ethylene with a molar proportion of vinyl acetate, and wherein said copolymer has a molecular weight in the range of about 1,000 to 5,000.
10. A concentrate according to claim 9, wherein said hydrogenated alkyl aromatic is said hydrogenated alkyl aromatic fraction of an amorphous normally solid wax, and wherein said ethylene backbone pour point depressant is a copolymer of 4 to 20 molar proportions of ethylene with a molar proportion of vinyl acetate and wherein said copolymer has a molecular weight in the range of about 1,000 to 5,000.
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种醋酸乌利斯他中间体的合成方法 | 2020-05-08 | 44 |
| 一种粗制木醋液精化分离方法及精化工艺 | 2020-05-11 | 353 |
| 基于小分子烃活化强化的重油固体热载体毫秒热解工艺 | 2020-05-08 | 435 |
| 一种抗菌高氧阻隔PE复合膜及其制备方法 | 2020-05-11 | 58 |
| 一种低粘度聚α-烯烃合成油的制备方法 | 2020-05-12 | 199 |
| 一种优质中间相沥青前驱体的制备方法 | 2020-05-08 | 760 |
| 一种阿哌沙班中间体及其制备方法 | 2020-05-08 | 379 |
| 一种六甲基二硅氧烷的制备方法 | 2020-05-11 | 793 |
| 一种能有效提高精炼后植物油中亚麻酸含量的工艺 | 2020-05-12 | 783 |
| 一种花炮用恒湿防潮助剂及其制备方法 | 2020-05-11 | 190 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
分析报告
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
中间馏分油热门专利
QQ群二维码
意见反馈
意见反馈