Saudi Arabian Oil Company

Saudi Aramco Technologies Company

Hussain M Yami

Wei Xu

Zhonglin Zhang

Mohammad S Alroaithi

Sohel K Shaikh

Kareemuddin Mahaboob Shaik

Ola S Ali

Faisal M Melibari

Rodrigo Sandoval Rivera

Sohel K Saikh

Xu Wei

Ali M Albarakati

This application relates to methods and systems for drying polyol starters, as well as reaction mixtures including such polyol starters, and the preparation of polymers derived from such polyol starters. In some embodiments, the present invention encompasses methods of drying a polyol initiator compound, the method including the step of contacting a composition comprising a polyol initiator compound with one or more molecular sieves.

Systems and methods for drying compounds

A method of continuously producing a polyol includes: (i) feeding a solid catalyst into a continuous stirred tank reactor (CSTR); (ii) contacting a reaction mixture comprising one or more epoxides and carbon dioxide with the solid catalyst and a chain transfer agent comprising a plurality of sites capable of initiating copolymerization of epoxides and carbon dioxide in the CSTR; (iii) allowing polymerization reaction to proceed until a desired molecular weight polyol has formed; and (iv) terminating the polymerization reaction.

Continuous manufacturing of polyol

A process for selectively producing 1-butene comprises combining at least one antifouling agent and at least one aluminum alkyl compound to form an antifouling feed stream, wherein bringing the antifouling agent into contact with the aluminum alkyl compound forms at least one antifouling agent co-catalyst in a first step. The antifouling agent co-catalyst may comprise a structure comprising a central aluminum molecule bound to an R1 group, an R2 group, and an R3 group. The process further comprises feeding the antifouling feed stream, a catalyst comprising at least one titanate compound, and ethylene into a reactor dimerize ethylene in a second step. The catalyst is fed as a stream separated from the antifouling feed stream. The feeds may be varied in real-time to adjust a ratio of the formed antifouling agent co-catalyst and residual aluminum alkyl compound or antifouling agent in the antifouling feed stream.

Inline process to make antifouling agent co-catalyst for ethylene oligomerization

Described here are various processes for producing linear alpha olefins using a heterogeneous catalytic composition in the reaction mixture. These processes include size-based or phase-based separation of the heterogeneous catalytic compositions from the product stream and recycling the catalysts to the reaction mixture. Various other embodiments may be disclosed and claimed.

Process for ethylene oligomerization to produce alpha-olefins

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Thuwal, Saudi Arabia

Hussain M Yami