US 8,281,796 B2Granted

Slurry catalyst flow splitters and methods of using the same

AssigneeUnivation Technologies, LLC

InventorTimothy R. Lynn

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Abstract

A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.

Claims11

Dependent claims

A method of controlling a slurry catalyst flow comprising the steps of:

(a) providing a slurry catalyst composition;
(b) splitting the slurry catalyst composition into a primary slurry catalyst composition and a secondary slurry catalyst composition;
(c) measuring a primary slurry catalyst composition flow rate of the primary slurry catalyst composition;
(d) supplying the primary slurry catalyst composition to a primary catalyst injection device;
(e) measuring a secondary slurry catalyst composition flow rate of the secondary slurry catalyst composition;
(f) controlling a process parameter of a secondary slurry feed system based on a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate, wherein the process parameter affects the secondary slurry catalyst composition flow rate;
and
(g) supplying the secondary slurry catalyst composition to a secondary catalyst injection device.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/156,411Filed 9 Jun 2011 · division
Priority: 4 Jun 2008
Published: US 2011/0088787 A129 Sep 2011
Granted: 9 Oct 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

C08F 10/00
Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double
C08F 2400/02
Characteristics for processes of polymerization: control or adjustment of polymerization parameters
Y10T 137/0318
Fluid handling: processes
Y10T 137/0324
Processes: with control of flow by a condition or characteristic of a fluid

Family

Application61/130,867Us provisional application · filed 4 Jun 2008
PCT/US2009/046093Parent of this division · filed 3 Jun 2009
US 2011/0232768 A1Pre-grant publication · published 29 Sep 2011
Application12/991,315Parent of this division
US 7,980,264 B2Parent of this division
US 2011/0088787 A1Published application
US 8,281,796 B2This patent

From the US filing history. Foreign family members aren’t listed.