T
Tomas R. Melli
Researcher at Mobil
Publications - 12
Citations - 80
Tomas R. Melli is an academic researcher from Mobil. The author has contributed to research in topics: Catalysis & Sulfolane. The author has an hindex of 6, co-authored 12 publications receiving 80 citations.
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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
Patent
Method for regenerating HF/sulfolane alkylation catalyst
TL;DR: In this paper, a method for separating acid soluble oil (ASO) from a mixture containing ASO, HF and sulfolane comprising the steps of stripping the alkylation catalyst in a stripping tower (20) with a stripping gas (22) to obtain an intermediate product (28) containing less than 5 weight percent HF, charging said intermediate product to a gravitational separation zone (30), holding said intermediate products in said gravitational separation Zone for time sufficient to evolve two at least partially immiscible liquid phases in said GZ, and withdrawing a less dense phase enriched in ASO
Patent
Separation of sulfolane from conjunct polymeric byproducts
TL;DR: In this paper, a method for separating sulfolane from a mixture containing conjunct polymers and hydrofluoric acid comprising the sequential steps of: (a) removing Hydrofluoric acids from the mixture (10) in a stripping/distillation tower (20) by stripping with a gas (22) to obtain an intermediate stream (28) containing less than about 30 percent HF by weight which is cooled in a cooler (50), to obtain a cooled intermediate stream, and (b) contacting said intermediate stream with water in an extractor/separator (60); and