King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Anwar Hossaen

Muhammad Atiqullah

Wei Xu

Abdullah Raddad Al-Malki

Faisal Mohammed Al-Thenayan

Abdel Salam Al-Sarkhi

Mamdouh Ahmad Al-Harthi

Anwar Ul-Hamid

Abdelsalam Mohammad Al-Sarkhi

Siripon Anantawaraskul

Abdul-Hamid M Emwas

A catalyst consisting essentially of at least one tertiary monophenyl amine having a formula RRN-aryl, where Rand Rare the same or different, and each is a hydrogen, an alkyl, or a cycloalkyl group, where at least one of Rand Rcontain at least one carbon atom; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-3. Further, the catalyst is absent of a carrier or support.

Catalyst composition for making ultra high molecular weight poly (alpha-olefin) drag reducing agents

A method of reducing drag in a conduit. The method includes producing ultra high molecular weight (UHMW) C-C&#x3b1;-olefin drag reducing agent (DRA) and introducing the UHMW C-C&#x3b1;-olefin polymer DRA into the conduit to reduce drag in the conduit. The catalyst consists essentially of at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.

Method of reducing drag in a conduit

A method of producing ultra high molecular weight (UHMW) C-C&#x3b1;-olefin drag reducing agent (DRA). The method includes polymerizing in a reactor a first &#x3b1;-olefin monomer in the presence of catalyst and hydrocarbon solvent to produce the DRA. The catalyst consists essentially of at least one tertiary monophenyl amine having a formula RRN-aryl, where Rand Rare the same or different, and each is a hydrogen, an alkyl, or a cycloalkyl group, where at least one of Rand Rcontain at least one carbon atom; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.

Catalyst composition and a process for making ultra high molecular weight poly (alpha-olefin) drag reducing agents

The supported metallocene catalyst for olefin polymerization is (BuCp)ZrClimpregnated onto a silica support having MAO tethered thereon. The catalyst is made by dehydroxylating silica, adding MAO dropwise to a slurry of the silica in toluene, heating the mixture for several hours, reacting (BuCp)ZrClin toluene solvent with the MAO/silica support, and drying the catalyst under vacuum. The catalyst may be used, e.g., to catalyze copolymerization of ethylene with 1-hexene.

Supported metallocene catalyst for olefin polymerization

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Dhahran, Saudi Arabia

Anwar Hossaen