摘要 |
<p>A process for the polymerization of olefins is disclosed. The process may include: feeding a catalyst, a liquid diluent, and an olefin to a polymerization vessel having, from a polymerization vessel bottom to a polymerization vessel top, a vapor introduction zone, a three- phase reaction zone and a vapor disengagement zone; contacting the catalyst and olefin under conditions of temperature and pressure in the presence of the liquid diluent as a continuous phase in the three-phase reaction zone to form a solid phase polyolefin; withdrawing a gas phase composition from an outlet in fluid communication with the vapor disengagement zone; circulating the gas phase composition through a gas circulation loop to an inlet in fluid communication with the vapor distribution zone at a rate sufficient to agitate the solid and liquid phases within the three-phase reaction zone; and withdrawing a reaction mixture comprising polyolefin and diluents from the three-phase reaction zone.</p> |
申请人 |
UNIVATION TECHNOLOGIES, LLC;HUSSEIN, F., DAVID;MUHLE, MICHAEL, E.;CAI, PING;BLOOD, MARK, W. |
发明人 |
HUSSEIN, F., DAVID;MUHLE, MICHAEL, E.;CAI, PING;BLOOD, MARK, W. |