Back to results
US 8,710,161 B2Granted
Method for transforming a single reactor line
AssigneeTotal Research & Technology Feluy
InventorsLouis Fouarge, Eric Duchesne
Life of this patent
Estimating the term…
Abstract
The present invention discloses a method for transforming a single reactor line into a double reactor line wherein the existing single reactor line is equipped with a flash tank for separating the solid polymer product from the flash vapor and wherein the vapor is sent to a system of at least two separating columns allowing the separation of its constituents into monomer, diluent and comonomer.
Claims18
A method for transforming a single reactor line into a double reactor line comprising:
- a process selected from:
- adding a second single reactor line upstream of a first existing single reactor line, wherein the second single reactor line is smaller than or of the same size as the first existing single reactor line;
- and
- transforming the first existing single reactor line into a double reactor line, wherein the first existing single reactor line comprises at least 6 legs, and wherein the first existing single reactor line is transformed by:
- rearranging connections between the legs in order to obtain a first reactor line and a second reactor line, wherein the first reactor line is smaller than or of the same size as the second reactor line;
- adding a pump to the first reactor line, the second reactor line or combinations thereof;
- and
- adding a continuous transfer line to transport polymer from the first reactor line to the second reactor line;
- and
- wherein the first existing single reactor line comprises two or more settling legs configured to sequentially discharge settled polymer slurry, wherein the first existing single reactor line is equipped with a flash tank for separating solid polymer product from flash vapor, and wherein the flash vapor is sent to a system of at least two separating columns allowing the separation of its constituents into monomer, diluent and comonomer.
7 more elements
A polymerization process comprising:
- introducing an olefin monomer into a reaction vessel;
- contacting the olefin monomer with a catalyst system within the reaction vessel;
- and
- sequentially discharging polymer product from the reaction vessel, wherein the reaction vessel comprises:
- a second single reactor line upstream of a first existing single reactor line, wherein the second single reactor line is smaller than or of the same size as the first existing single reactor line;
- or
- a first existing single reactor line comprising at least 6 legs, wherein the first existing single reactor line is transformed into a double reactor line by:
- rearranging connections between the legs in order to obtain a first reactor line and a second reactor line, wherein the first reactor line is smaller than or of the same size as the second reactor line;
- adding a pump to the first reactor line, the second reactor line or combinations thereof;
- and
- adding a continuous transfer line to transport polymer from the first reactor line to the second reactor line;
- and
- wherein the first existing single reactor line is equipped with a flash tank for separating solid polymer product from flash vapor, and wherein the flash vapor is sent to a system of at least two separating columns allowing the separation of its constituents into monomer, diluent and comonomer.
10 more elements
Dependencies are inferred from the claim text.