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    • 83. 发明申请
    • PARAFFIN ALKYLATION
    • WO2008022212A1
    • 2008-02-21
    • PCT/US2007/076028
    • 2007-08-15
    • CATALYTIC DISTILLATION TECHNOLOGIESCROSS, William, M.SMITH, Lawrence, A.
    • CROSS, William, M.SMITH, Lawrence, A.
    • C07C11/02C07C11/06C07C11/08C07C11/10
    • C07C2/62C07C2/08C10G29/205C10G57/02C10G2300/1081C10G2300/1088C10G2300/4081Y10S585/903
    • A process for paraffin alkylation of isoalkanes with isoolefins in which an olefin component comprising oligomerized propylene, oligomerized isoolefin, or mixtures thereof is fed to a paraffin alkylation unit wherein the dissociated olefin components forming the oligomers react with isoalkanes to produce a reaction mixture containing an alkylate and unreacted isoalkanes. The reaction mixture is fractionally distilled to recover unreacted isoalkanes as overheads and alkylate as bottoms. The stoichiometry of isoolefins to isoalkanes in the alkylation unit is maintained by adjustment of the feed to the oligomerization, for example, by adding fresh isoalkanes to the recovered, unreacted isoalkanes from the alkylation unit being recycled to the oligomerization. Alternatively, a portion of the recovered unreacted isoalkanes is dehydrogenated to an isoolefin which is added to the oligomerization.
    • 用异烯烃烷烃化异烷烃的方法,其中将包含低聚丙烯,低聚异烯烃或其混合物的烯烃组分进料到烷烃烷基化单元,其中形成低聚物的解离的烯烃组分与异烷烃反应以产生含有烷基化物的反应混合物 和未反应的异烷烃。 将反应混合物分馏,以回收未反应的异烷烃作为塔顶馏出物和烷基化物作为底部物质。 烷基化单元中异烯烃与异烷烃的化学计量通过调节低聚反应的进料来维持,例如通过将新鲜的异烷烃加入回收的未反应的异烷烃中,从烷基化单元再循环到低聚反应中。 或者,将一部分回收的未反应的异烷烃脱氢成异烯烃,加入到低聚物中。
    • 88. 发明申请
    • METHODS FOR INJECTING CATALYST INTO A POLYMERIZATION REACTOR
    • 将催化剂注入聚合反应器的方法
    • WO2004033508A1
    • 2004-04-22
    • PCT/US2003/029583
    • 2003-09-22
    • EXXONMOBIL CHEMICAL PATENTS INC.SMITH, Lawrence, C.DICKEY, Randell, W.RUBISH, Robin, L.
    • SMITH, Lawrence, C.DICKEY, Randell, W.RUBISH, Robin, L.
    • C08F10/06
    • C08F10/00B01J8/0035B01J8/1818B01J8/1872B01J8/20B01J2208/003B01J2208/00752C08F110/06Y10S526/919C08F2/01C08F2/00C08F2/14
    • A polymerization process and a catalyst delivery system are provided. For example, a polymerization process is described, including providing a conduit having a catalyst inlet, a first propylene stream inlet located downstream of the catalyst inlet, and a second propylene stream inlet located downstream of the first propylene stream inlet, the conduit being operably connected to a polymerization vessel, introducing a catalyst to the conduit through the catalyst inlet, and passing the catalyst through the conduit to the polymerization vessel. The process may further include introducing a first propylene stream to the conduit to provide a mixed catalyst stream downstream of the catalyst inlet. The process may additionally include stopping the flow of the catalyst passing through the conduit, introducing a second propylene stream to the conduit through the second propylene stream inlet, removing a section of the conduit, and replacing the removed section of the conduit with a different conduit section. The catalyst delivery system may include a conduit having a catalyst inlet, a first propylene stream inlet and a second propylene stream inlet located downstream of the first propylene stream inlet, the conduit being operably connected to a polymerization vessel and having a removable portion, the second propylene stream inlet being configured to prevent polymer from passing from the polymerization vessel into the conduit during conduit maintenance.
    • 提供聚合方法和催化剂递送系统。 例如,描述聚合方法,包括提供具有催化剂入口的导管,位于催化剂入口下游的第一丙烯流入口和位于第一丙烯流入口下游的第二丙烯流入口,导管可操作地连接 到聚合容器中,通过催化剂入口将催化剂引入导管,并使催化剂通过导管进入聚合容器。 该方法还可以包括将第一丙烯流引入导管以在催化剂入口下游提供混合催化剂流。 该方法可以另外包括停止通过导管的催化剂的流动,通过第二丙烯流入口将第二丙烯流引入导管,除去导管的一部分,并用不同的导管代替导管的去除部分 部分。 催化剂输送系统可以包括导管,其具有位于第一丙烯流入口下游的催化剂入口,第一丙烯流入口和第二丙烯流入口,导管可操作地连接到聚合容器并具有可移除部分,第二丙烯流入口 丙烯流入口被配置为防止聚合物在导管维护期间从聚合容器进入导管。