4-Ethenylpyridine;2-methylprop-2-enoic acid | 111905-49-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 4-Ethenylpyridine;2-methylprop-2-enoic acid
• CAS: 111905-49-8
• 化学式: C11H13NO2
• 分子量: 191.23
• InChiKey: QRBMBUIYCCCECM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.37
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  50.2
• 氢给体数：
  1
• 氢受体数：
  3

文献信息

• Method of selection of asphaltene precipitant additives and process for subsurface upgrading therewith
  申请人：Chevron U.S.A. Inc.

  公开号：US10975291B2

  公开（公告）日：2021-04-13

  In-situ upgrading of heavy hydrocarbons includes injecting into a reservoir solvent, an asphaltene precipitant additive and optionally steam, at a ratio of solvent to heavy hydrocarbon between 0.1:1 and 20:1 under reservoir conditions. The additive has C—H, C—C and/or C—O bonds that thermally crack to generate free radicals in the vapor phase after injection. Formed downhole are a blend containing an upgraded hydrocarbon, and precipitated asphaltenes. The upgraded hydrocarbon is produced such that the precipitated asphaltenes remain in the reservoir. The upgraded hydrocarbon has a greater API gravity, lower asphaltene content, and lower viscosity than the heavy hydrocarbon. The precipitated asphaltenes are present in a higher amount than a similar blend not containing the additive. A method for selecting the additive includes identifying candidate additives having bonds that crack to generate free radicals in the vapor phase at the operating temperature, and calculating percent increase of asphaltenes precipitated for each.

  重碳氢化合物的原位升级包括向储层注入溶剂、沥青质沉淀剂添加剂和蒸汽，在储层条件下，溶剂与重碳氢化合物的比例在 0.1:1 到 20:1 之间。添加剂中的 C-H、C-C 和/或 C-O 键在注入后会发生热裂解，在气相中产生自由基。在井下形成的混合物含有升级的碳氢化合物和沉淀的沥青质。在生产升级碳氢化合物时，沉淀沥青质会留在储层中。与重质碳氢化合物相比，升级碳氢化合物的 API 重力更大，沥青质含量更低，粘度更低。与不含添加剂的类似混合物相比，沉淀沥青质的含量更高。选择添加剂的方法包括确定候选添加剂，这些添加剂的键在工作温度下会裂解，从而在气相中产生自由基，并计算每种添加剂析出的沥青质的增加百分比。
• PROCESS FOR IN SITU UPGRADING OF A HEAVY HYDROCARBON USING ASPHALTENE PRECIPITANT ADDITIVES
  申请人：Ovalles Cesar

  公开号：US20150114635A1

  公开（公告）日：2015-04-30

  Disclosed is a process for in situ upgrading of a heavy hydrocarbon comprising the steps of: (a) positioning a well in a reservoir containing a heavy hydrocarbon having an initial API gravity of less than or equal to about 20, an n-heptane asphaltene content as measured by the ASTM D-6560 of at least about 1 wt. %, and a viscosity at 35° C. greater than about 350 centistokes (cSt); (b) injecting one or more hydrocarbon solvents and one or more asphaltene precipitant additives into the well in any order at a ratio by volume of the solvent to the heavy hydrocarbon of at least from about 0.1:1 to about 20:1 under reservoir conditions so as to provide an upgraded hydrocarbon in the reservoir, wherein the upgraded hydrocarbon has an improved API gravity greater than the initial API gravity, a reduction in the asphaltene content, and a lower viscosity; and (c) producing the upgraded hydrocarbon from the well. The process of the present invention can be also carried out at higher temperatures such as by injecting steam with the one or more hydrocarbon solvents and the one or more asphaltene precipitant additives into the well in any order.
• METHOD OF SELECTION OF ASPHALTENE PRECIPITANT ADDITIVES AND PROCESS FOR SUBSURFACE UPGRADING THEREWITH
  申请人：Chevron U.S.A. Inc.

  公开号：US20190241795A1

  公开（公告）日：2019-08-08

  In-situ upgrading of heavy hydrocarbons includes injecting into a reservoir solvent, an asphaltene precipitant additive and optionally steam, at a ratio of solvent to heavy hydrocarbon between 0.1:1 and 20:1 under reservoir conditions. The additive has C—H, C—C and/or C—O bonds that thermally crack to generate free radicals in the vapor phase after injection. Formed downhole are a blend containing an upgraded hydrocarbon, and precipitated asphaltenes. The upgraded hydrocarbon is produced such that the precipitated asphaltenes remain in the reservoir. The upgraded hydrocarbon has a greater API gravity, lower asphaltene content, and lower viscosity than the heavy hydrocarbon. The precipitated asphaltenes are present in a higher amount than a similar blend not containing the additive. A method for selecting the additive includes identifying candidate additives having bonds that crack to generate free radicals in the vapor phase at the operating temperature, and calculating percent increase of asphaltenes precipitated for each.
• US9670760B2
  申请人：——

  公开号：US9670760B2

  公开（公告）日：2017-06-06
• [EN] PROCESS FOR IN SITU UPGRADING OF A HEAVY HYDROCARBON USING ASPHALTENE PRECIPITANT ADDITIVES<br/>[FR] PROCÉDÉ DE VALORISATION IN SITU D'UN HYDROCARBURE LOURD À L'AIDE D'ADDITIFS PRÉCIPITANT L'ASPHALTÈNE
  申请人：CHEVRON USA INC

  公开号：WO2015065798A1

  公开（公告）日：2015-05-07

  Disclosed is a process for in situ upgrading of a heavy hydrocarbon comprising the steps of: (a) positioning a well in a reservoir containing a heavy hydrocarbon having an initial API gravity of less than or equal to about 20, an n-heptane asphaltene content as measured by the ASTM D-6560 of at least about 1 wt.%, and a viscosity at 35°C greater than about 350 centistokes (cSt); (b) injecting one or more hydrocarbon solvents and one or more asphaltene precipitant additives into the well in any order at a ratio by volume of the solvent to the heavy hydrocarbon of at least from about 0.1:1 to about 20:1 under reservoir conditions so as to provide an upgraded hydrocarbon in the reservoir, wherein the upgraded hydrocarbon has an improved API gravity greater than the initial API gravity, a reduction in the asphaltene content, and a lower viscosity; and (c) producing the upgraded hydrocarbon from the well. The process of the present invention can be also carried out at higher temperatures such as by injecting steam with the one or more hydrocarbon solvents and the one or more asphaltene precipitant additives into the well in any order.