Polymerization using a spiral heat exchanger
AssigneeExxonMobil Chemical Patents Inc.
InventorsJay L Reimers, Kevin W. Lawson, Peijun Jiang, Gabor Kiss
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Abstract
This invention relates to a polymerization process for forming polymer comprising: contacting (typically in a solution or slurry phase), a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer, wherein the monomer, the catalyst system and the polymer flow through the at least one spiral heat exchanger in a cross-flow direction relative to spirals of the at least one spiral heat exchanger.
Claims25
A polymerization process for forming polymer comprising:
- contacting a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer,
- wherein the monomer, the catalyst system and polymer flow through the at least one spiral heat exchanger in a cross-flow direction relative to spirals of the at least one spiral heat exchanger,
- wherein the Reynolds number of the flow of the solvent, monomer/comonomer, the catalyst system, and polymer is about 0.1 to about 2,200.
A polymerization process for forming polymer comprising:
- contacting a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer,
- wherein the monomer, the catalyst system and polymer flow through the at least one spiral heat exchanger in a cross-flow direction relative to spirals of the at least one spiral heat exchanger;
- wherein the process is a solution phase process;
- and
- wherein a pressure drop across the at least one spiral heat exchanger is less than or equal to about 10 psi.
A polymerization process for forming polymer comprising:
- contacting a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer,
- wherein the spiral heat exchanger comprises at least one spiral sheet spiraling radially around an axis of the spiral heat exchanger,
- wherein the spiral heat exchanger comprises at least one channel formed in between adjacent spiralings of the at least one spiral sheet,
- wherein the monomer, the catalyst system and polymer flow through the at least one channel in a cross-flow direction relative to spirals of the at least one spiral heat exchanger;
- wherein the catalyst system comprises a catalyst compound and an activator;
- and
- wherein the monomer comprises C2 to C40 olefins.
Dependencies are inferred from the claim text.