Patent
Method for separating conjunct polymeric byproducts from mixture containing hydrofluoric acid and a sulfone
TLDR
In this article, a method for separating conjunct polymers and sulfolane from a mixture of conjun polymers, sulfols, and hydrofluoric acid is described.Abstract:
A method for separating conjunct polymers and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid is disclosed, which method comprises the sequential steps of separating hydrofluoric acid from the mixture to provide an intermediate stream containing less than 30 percent hydrofluoric acid by weight and gravitationally separating the intermediate stream into a sulfolane-enriched stream and a conjunct polymer-enriched stream.read more
Citations
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Patent
Isoparaffin-olefin alkylation
TL;DR: In this paper, a novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbon to produce high octane alkylate products.
Patent
Alkylation catalyst regeneration
TL;DR: In this article, a process for regenerating an ASO contaminated alkylation catalyst which contains a sulfone component and a hydrogen halide component is described, where a series of separation steps are performed to remove a significant portion of the hydrogen-halide component contained therein.
Patent
Sulfolane purification by hydrocarbon extraction
Michael Alan Better,Jonathan E. Child,Kenneth J. Del Rossi,Edward H. Edelson,Anagha Avinash Gupte,Rafi Jalkian,Tomas R. Melli,Sergei Yurchak +7 more
TL;DR: In this paper, a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjuct polymers and hydrofluoric acid comprising the sequential step of separating the mixture in a stripping or distillation tower (20) with a stripping gas (12) to obtain a bottom intermediate product (16) containing less than 30 percent hydrofluororic acid by weight which is cooled in a cooler (30) and enters a gravitational separator (40).
Patent
Removal of light ASO in HF alkylation process
TL;DR: In this article, a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture of polymeric components was proposed.
Patent
Liquid acid regeneration method
Rafi Jalkian,Tomas R. Melli +1 more
TL;DR: In this article, a process for regenerating a spent liquid acid catalyst comprising the steps of: (a) providing a spent Liquid Acid catalyst comprising HF, sulfolane, and conjunct polymeric byproducts formed during the HF-catalyzed reaction of isoparaffin and olefin to form isopcarafinnic alkylate; providing a finely divided solid sorbent, wherein said solid sorb preferentially and reversibly sorbs said conjunct polymer byproducts from a mixture containing HF, sarsolane; mixing said spent liquid acy
References
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Patent
Alkylation with separate olefin streams including isobutylene
TL;DR: In this paper, a C4-C6 ISOPARAFFIN and a STRONG ALYLATION CATALYST in an ALKYLATION ZONE with a first OLEFIN-CONTAINING STREAM SUBSTANTIALLY free of isobutylene and 2METHYL-butene-1 and a second OLEIN-conTAINing STREAM COMPRISING ISOBUTYLENE or 2-METTHYL-BUTENE-1 is introduced.
Patent
Alkylation of hydrocarbons with olefins in the presence of an acid catalyst
TL;DR: In this paper, the authors present a scenario where an aromatic or alphabetic hybrid with an olefin is equipped with an OLEFIN and there are EMPLOYed LIQUID CATalyst COMPOSITIONS CONTAINING, OPTIONally in an InERT HYDROCARBON SOLVENT, a LEWIS ACID or BRONSTED ACID and a SULFONE of Formula R-SO2-R'', whereIN R and R'' are EACH SEPARATELY a MON
Patent
Recovery of HF from an alkylation unit acid stream containing acid soluble oil
TL;DR: In this paper, a method and apparatus for recovering HF catalyst from an alkylation unit acid stream containing acid soluble oil is presented. But this method requires the mixture of acid and hydrogen sulfide to be cooled in a heat exchanger to a temperature sufficiently low so as to effect separation of HF from acid solvers.
Patent
Catalyst pretreatment with hydrocarbon feedstock
Robert P Cahn,John P Longwell +1 more
TL;DR: Partially deactivated catalysts comprising one or more Lewis acids of the formula MXn where M is a metal selected from Group III-A, IV-B, V or VI-B elements of the Periodic Table, X is a halogen, n is the ratio of halogen atoms to atoms of M and varies from 1-8 as discussed by the authors.
Patent
Hydrogen fluoride vapor containment and neutralization
TL;DR: A method of containing and neutralizing a hydrofluoric acid spill which comprises the steps of detecting a HFA spill, and then drenching the HAA spill area with a drench composition comprising water, and an alkali agent, was proposed in this article, where the alkali agents were present in an amount of 0.1 to 10 parts per 100 parts of water.