Sabic Global Technologies B.v.

Ernesto Uehara

Mohamed Sabri Abdelghani

Ananth Sharma

Mohammed A Al-Ghamdi

Vivek Singh Solanki

John Byron Smith Rajarethnam

Retheesh Madhusudanan Vanchiyil

Mohammed Sabri Abdel Ghani

Fares Alabbad

Systems and methods for processing a Cand Cstream are disclosed. A pygas stream can be separated in a depentanizer to produce a Cand Cstream and a Cto C+ stream. The Cand Cstream is further processed to recover Cdienes including isoprene, pentadiene, cyclopentadiene, or combinations thereof. The Cto C+ stream is further processed to recover aromatics including benzene, toluene, xylene, ethylbenzene, or combinations thereof.

Methods for integrated separation of dienes

Systems and methods for producing dicyclopentadiene via thermal dimerization of cyclopentadiene. The feed stream comprising cyclopentadiene is flowed through four shell and tube heat exchangers in series. Each of the shell and tube heat exchangers comprise a shell and one or more tubes disposed in the shell. The feed stream is flowed in the tubes while the heat transfer medium is flowed in the shell to absorb the exothermic heat released by the dimerization of cyclopentadiene in the tubes. In this way, the temperature in the tubes is controlled at a level where the conversion rate of cyclopentadiene is above 99% and the occurrence of runaway reaction is substantially prevented.

Dimerization of cyclopentadiene using shell and tube heat exchanger

Methods for the selective hydrogenation of acetylenic compounds in a product stream that includes isoprene. A method of selectively hydrogenating an acetylenic hydrocarbon in the presence of isoprene may include obtaining a hydrocarbon mixture comprising an acetylenic hydrocarbon, isoprene, and butadiene or cyclopentadiene, or both. If cyclopentadiene is present, the hydrocarbon mixture may comprise greater than 2 wt. % cyclopentadiene. The method may further include contacting the hydrocarbon mixture and hydrogen (H) with a hydrogenation catalyst under reaction conditions that are more selective to the hydrogenation of the acetylenic hydrocarbon than the isoprene.

Systems and methods for isoprene purification

Systems and methods for producing dicyclopentadiene from cyclopentadiene using reactive jet mixing are disclosed. A Chydrocarbon mixture that comprises cyclopentadiene (CH) is injected as a jet stream into Chydrocarbon liquid in a reactor tank. Under appropriate reaction conditions, cyclopentadiene is dimerized to form dicyclopentadiene.

Dimerization of cyclopentadiene using reactive jet mixing

Methods and systems for treating pygas are disclosed. Methods include depentanizing the pygas to produce a Cstream and a C+ stream before hydrotreating the C+ stream, to integrate the processing of pygas with the production of isoprene, piperylene, and dicyclopentadiene. Systems include a depentanizer added before a pygas hydrotreatment unit.

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Riyadh, Saudi Arabia

Ernesto Uehara