×

Process for improving the operations of a polymerisation plant

  • US 9,790,293 B2
  • Filed: 09/30/2013
  • Issued: 10/17/2017
  • Est. Priority Date: 10/02/2012
  • Status: Expired due to Fees
First Claim
Patent Images

1. Petrochemical complex comprising an olefin monomer polymerisation plant comprising at least one polymerisation reactor and an optional degassing section, whereinthe polymerisation reactor comprises process hydrocarbons consisting of the monomer, the optional comonomer(s) and optionally at least one inert hydrocarbon diluent, together with aluminium containing compound(s);

  • andthe polymerisation plant comprises liquid purge stream(s) which comprises aluminium containing compounds and optionally polymer fines, together with accumulated hydrocarbons which are different from the said process hydrocarbons and which are hydrocarbons containing at least 4 carbon atoms,wherein the petrochemical complex also comprises a multipurpose hydrocarbon treatment unit which separates the liquid purge stream(s) intoone stream comprising substantially all of the aluminium containing compounds and optional polymer fines, andone stream comprising the accumulated hydrocarbons; and

    further wherein the petrochemical complex also comprises an upgrading unit for the treatment of the accumulated hydrocarbons which also produces the fresh monomer and/or comonomer for the polymerisation reaction.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×