Integrated system to continuously inject small amounts of immiscible liquid

Patent metadata

Field	Value
Publication number	US-10279339-B2
Application number	US-201615341031-A
Country	US
Kind code	B2
Filing date	Nov 2, 2016
Priority date	Nov 2, 2016
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

An integrated system comprising:
a. an additive delivery system comprising a transfer drum that feeds an immiscible liquid stream towards one or more injection quills; b. a solvent flushing system, comprising one or more additive addition lines that transfer the immiscible liquid stream from the additive delivery system; and c. an additive injection and mixing system comprising the one or more injection quills, wherein the immiscible liquid stream is injected into a larger liquid stream. Also, a process comprising: a. feeding the immiscible liquid stream to a transfer drum; b. transferring the immiscible liquid stream from the transfer drum to injection quills in a solvent flushing system, wherein the solvent flushing system injects a solvent into one or more additive addition lines in the solvent flushing system; and c. injecting the immiscible liquid stream into the larger liquid stream in an additive injection and mixing system comprising injection quills.

First claim

It is claimed:

1. An integrated system for continuously injecting an immiscible liquid stream that is a co-catalyst into a larger liquid stream that is an acidic ionic liquid catalyst, comprising:
a. an additive delivery system comprising a transfer drum that continuously feeds the immiscible liquid stream towards one or more conical injection quills each having a single inlet with an orifice diameter from 0.05 mm to 5 mm that provides mixing of the immiscible liquid stream and the larger liquid stream;
b. a solvent flushing system, fluidly connected downstream from the additive delivery system, comprising one or more additive addition lines that transfer the immiscible liquid stream from the additive delivery system to the one or more conical injection quills, and wherein a solvent is injected into the one or more additive addition lines;
c. an additive injection and mixing system comprising the one or more conical injection quills, wherein the immiscible liquid stream is injected and mixed by the one or more conical injection quills into the larger liquid stream, and
d. a downstream alkylation reactor connected to the additive injection and mixing system that receives a liquid mixture from step c) and produces an alkylate product.

2. The integrated system of claim 1 , wherein the transfer drum has an inlet that introduces a gas that maintains a pressure in the transfer drum.

3. The integrated system of claim 1 , wherein the additive delivery system additionally comprises a storage drum that is connected via a pump to the transfer drum.

4. The integrated system of claim 1 , additionally comprising a flow controller that meters an amount of an additive that is fed from the additive delivery system towards the one or more conical injection quills.

5. The integrated system of claim 1 , wherein the one or more conical injection quills are configured to provide an injection flow velocity of from 30 to 1000 mm/s.

6. The integrated system of claim 1 , wherein the one or more conical injection quills comprise an outlet to a drain that allows for occasional flush cleaning with the solvent.

7. The integrated system of claim 1 , wherein the one or more conical injection quills are seated in one or more tee connectors that feed the immiscible liquid stream into the larger liquid stream.

8. The integrated system of claim 1 , wherein the one or more conical injection quills are sized to provide a ratio of a quantity, in liter/day, of an additive in the immiscible liquid stream to a second quantity, in liter/day, of the larger liquid stream, wherein the ratio of the quantity to the second quantity is from 0.001:1 to 0.1:1.

9. The integrated system of claim 1 , wherein the one or more conical injection quills are oriented vertically and inject the immiscible liquid stream in a downward direction into a horizontal flow of the larger liquid stream, and wherein a density of the immiscible liquid stream is less than a second density of the larger liquid stream.

10. The integrated system of claim 1 , comprising two or more additive addition lines in parallel.

11. The integrated system of claim 1 , wherein the orifice diameter is less than 3 mm.

12. The integrated system of claim 1 , wherein no further mixing of the immiscible liquid stream and the larger liquid stream is needed.

Assignees

• Chevron Usa Inc

Inventors

• Luo Huping
• Deppe Gordon R
• Butterfield Albert Eugene
• Evans Allison Amy
• Fritz Jacob

Classifications

• B01J31/0231

  Halogen-containing compounds · CPC title

• B01J27/125

  with scandium, yttrium, aluminium, gallium, indium or thallium · CPC title

• B01J2231/323

  Hydrometalation, e.g. bor-, alumin-, silyl-, zirconation or analoguous reactions like carbometalation, hydrocarbation · CPC title

• B01J2231/4205

  C-C cross-coupling, e.g. metal catalyzed or Friedel-Crafts type · CPC title

• B01J31/26

  containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 · CPC title