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    Tar sands extraction process
    1.
    发明授权
    Tar sands extraction process 失效
    焦油砂提取工艺

    公开(公告)号：US4036732A

    公开(公告)日：1977-07-19

    申请号：US547640

    申请日：1975-02-06

    Applicant: Cyrus A. Irani ,  Edward W. Funk ,  Ernesto Gomez ,  Ramon L. Espino

    Inventor： Cyrus A. Irani ,  Edward W. Funk ,  Ernesto Gomez ,  Ramon L. Espino

    IPC: C10G1/00 ,  C10G1/04

    CPC classification number: C10G1/006

    Abstract: This invention relates to a process for the extraction of bitumen from tar sands which comprises contacting the tar sand in an extraction zone with a paraffinic hydrocarbon solvent having from 5 to 9 carbon atoms at a ratio of from 2 to 10 parts solvent per part of bitumen present in the tar sand, maintaining the asphaltene fraction of said tar sands in suspension, separating a major portion of said solvent which contains a major amount of the bitumen dissolved therein along with the suspended asphaltene fraction from the extracted sand, passing the extracted sand along with a minor portion of said solvent and a minor amount of bitumen into a water contacting zone and therein contacting said extracted sand with sufficient water at a temperature of at least 100.degree. F. to separate substantially all of said minor amount of bitumen and said minor portion of solvent from said sand, separating said major solvent portion from the suspended asphaltenes and distilling said solvent from said major solvent portion to recover said major amount of bitumen. In a preferred embodiment, the extract from the water contacting zone is centrifuged to separate fines and water from the bitumen and solvent, said minor amount of bitumen is removed from the solvent, e.g., by distillation and may be burned to provide heat for the process. The process of the instant invention contemplates separating said minor amount of bitumen as a low metals bitumen fraction, thus useful as a clean burning fuel. The metal contaminants of the tar sand are removed with the asphaltenes and discarded. Asphaltenes are defined throughout the specification as that fraction of tar which is insoluble in n-heptane and soluble in benzene at room temperature.

    Abstract translation: 本发明涉及从焦油砂中提取沥青的方法，该方法包括使提取区中的焦油砂与具有5至9个碳原子的链烷烃溶剂以每份沥青2至10份溶剂的比例接触 存在于焦油砂中，将沥青质沥青质馏分保持在悬浮液中，将大部分溶解的大部分沥青与所提取的沙子中悬浮的沥青质馏分一起分离出来，将提取的砂沿着 其中少量的所述溶剂和少量的沥青进入水接触区，并且其中使所述提取的砂与足够的水在至少100°F的温度下接触以将基本上所有的少量沥青和所述次要物质分离 部分来自所述砂的溶剂，将所述主要溶剂部分与悬浮的沥青质分离，并从所述主体中蒸馏出所述溶剂 或溶剂部分以回收所述主要量的沥青。 在优选的实施方案中，将来自水接触区域的提取物离心以从沥青和溶剂中分离细粉和水，所述少量沥青从溶剂中除去，例如通过蒸馏，并且可以被燃烧以为该方法提供热量 。 本发明的方法考虑将所述少量沥青分离为低金属沥青馏分，因此可用作清洁燃烧的燃料。 焦油砂的金属污染物用沥青质去除并丢弃。 在整个说明书中将沥青质定义为在室温下不溶于正庚烷和可溶于苯的焦油馏分。

    Membrane separation of hydrocarbons
    5.
    发明授权
    Membrane separation of hydrocarbons 失效
    碳氢化合物的膜分离

    公开(公告)号：US4595507A

    公开(公告)日：1986-06-17

    申请号：US637639

    申请日：1984-08-03

    Applicant: Y. Alice Chang ,  Sudhir S. Kulkarni ,  Edward W. Funk

    Inventor： Y. Alice Chang ,  Sudhir S. Kulkarni ,  Edward W. Funk

    IPC: B06B1/06 ,  G01V1/20 ,  B01D13/00

    CPC classification number: B06B1/0688 ,  G01V1/201

    Abstract: Mixtures of heavy oils and light hydrocarbons may be separated by passing the mixture through a polymeric membrane. The membrane which is utilized to effect the separation comprises a polymer which is capable of maintaining its integrity in the presence of hydrocarbon compounds and which has been modified by being subjected to the action of a sulfonating agent. Sulfonating agents which may be employed will include fuming sulfuric acid, chlorosulfonic acid, sulfur trioxide, etc., the surface or bulk modified polymer will contain a degree of sulfonation ranging from about 15 to about 50%. The separation process is effected at temperatures ranging from about ambient to about 100.degree. C. and pressures ranging from about 50 to about 1000 psig.

    Abstract translation: 通过将混合物通过聚合物膜可以分离重油和轻质烃的混合物。 用于分离的膜包括聚合物，该聚合物能够在烃化合物的存在下保持其完整性，并且通过经受磺化剂的作用而被改性。 可以使用的磺化剂将包括发烟硫酸，氯磺酸，三氧化硫等，表面或本体改性的聚合物将含有约15至约50％的磺化程度。 分离过程在约环境温度至约100℃的温度和约50至约1000psig的压力下进行。

    Solvent extraction process for tar sands
    6.
    发明授权
    Solvent extraction process for tar sands 失效
    焦油砂的溶剂萃取工艺

    公开(公告)号：US4347118A

    公开(公告)日：1982-08-31

    申请号：US80454

    申请日：1979-10-01

    Applicant: Edward W. Funk ,  Walter G. May ,  James C. Pirkle, Jr.

    Inventor： Edward W. Funk ,  Walter G. May ,  James C. Pirkle, Jr.

    IPC: C10G1/00 ,  C10G1/04

    CPC classification number: C10G1/04 ,  C10G1/006 ,  Y10S208/951

    Abstract: A solvent extraction process for tar sands is disclosed wherein a low boiling solvent having a normal boiling point of from 20.degree. to 70.degree. C. is used to extract tar sands. The solvent is mixed with tar sands in a dissolution zone, the solvent:bitumen weight ratio being maintained at from about 0.5:1 to 2:1. This mixture is passed to a separation zone in which bitumen and inorganic fines are separated from extracted sand, the separation zone containing a classifier and countercurrent extraction column. The extracted sand is introduced into a first fluid-bed drying zone fluidized by heated solvent vapors, so as to remove unbound solvent from extracted sand while at the same time lowering the water content of the sand to less than about 2 wt. %. The so-treated sand is then passed into a second fluid-bed drying zone fluidized by a heated inert gas to remove bound solvent. Recovered solvent is recycled to the dissolution zone.

    Abstract translation: 公开了一种焦油砂的溶剂萃取方法，其中使用正常沸点为20至70℃的低沸点溶剂来提取焦油砂。 溶剂与溶解区中的焦油砂混合，溶剂：沥青重量比保持在约0.5:1至2:1。 将该混合物送入分离区，其中将沥青和无机细粒与萃取的砂分离，分离区含有分选机和逆流提取塔。 将提取的砂子引入被加热的溶剂蒸气流化的第一流化床干燥区中，以便从提取的沙子中除去未结合的溶剂，同时将沙子的水分降低到小于约2wt。 ％。 然后将如此处理过的砂子进入通过加热的惰性气体流化的第二流化床干燥区域以除去结合的溶剂。 回收的溶剂再循环到溶解区。

    Membrane separation of hydrocarbons using cycloparaffinic solvents
    8.
    发明授权
    Membrane separation of hydrocarbons using cycloparaffinic solvents 失效
    使用环烷烃溶剂进行烃分离

    公开(公告)号：US4750990A

    公开(公告)日：1988-06-14

    申请号：US932052

    申请日：1986-11-18

    Applicant: Sudhir S. Kulkarni ,  Y. Alice Chang ,  John G. Gatsis ,  Edward W. Funk

    Inventor： Sudhir S. Kulkarni ,  Y. Alice Chang ,  John G. Gatsis ,  Edward W. Funk

    IPC: B01D61/14 ,  C10G21/00 ,  C10G31/11 ,  C10M175/04 ,  C10M11/00

    CPC classification number: B01D61/145 ,  C10G21/00 ,  C10G31/11 ,  C10M175/04

    Abstract: Heavy crude oils which contain metal contaminants such as nickel, vanadium and iron may be separated from light hydrocarbon oils by passing a solution of the crude oil dissolved in a cycloparaffinic hydrocarbon solvent containing from about 5 to about 8 carbon atoms by passing through a polymeric membrane which is capable of maintaining its integrity in the presence of hydrocarbon compounds. The light hydrocarbon oils which possess relatively low molecular weights will be recovered as the permeate while the heavy oils which possess relatively high molecular weights as well as the metal contaminants will be recovered as the retentate.

    Abstract translation: 含有金属污染物如镍，钒和铁的重质原油可以通过使溶解在约5至约8个碳原子的环烷烃溶剂中的原油溶液通过聚合物膜从轻烃油中分离出来 其能够在烃化合物的存在下保持其完整性。 具有相对较低分子量的轻烃油将作为渗透物被回收，而具有相对高分子量的重油以及金属污染物将作为渗余物回收。

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