Abstract: Processes are provided to produce a dilute ethylene stream and a dilute propylene stream from a cracked gas stream. One process comprises separating the cracked gas stream to produce a C3− stream and a C3+ stream; hydrogenating the C2− stream in a hydrogenation zone to remove a portion of the acetylene to produce the dilute ethylene stream and routing the C3+ stream to storage or other process unit. Another process comprises separating a cracked gas stream in a depropanizer zone to form a C3− stream and a C4+ stream; separating the C3− stream in a deethanizer zone to form a C2− and a C3 stream; hydrogenating a portion of the acetylene in the C2− stream in a hydrogenation zone to produce a dilute ethylene stream; and routing the C3 stream to storage or other process unit.

Abstract: A process is provided to produce a dilute ethylene stream and a dilute propylene stream to be used as feedstocks for producing olefin-based derivatives. Specifically, the dilute ethylene stream is used as a feedstock to produce ethylbenzene, and the dilute propylene stream is used as a feedstock to produce cumene, acrylic acid, propylene oxide and other propylene based derivatives.

Abstract: In process for the oligomerization of an alphaolefin, a carboxylic acid modifier, such as acetic acid, is used to increase the amount of trimer and tetramer in the product.

Abstract: A process for the separation of conjugated olefins from monoolefins in a fluid comprising such conjugated olefins and monoolefins using a Diels-Alder reaction to provide a fluid comprising a Diels-Alder adduct and monoolefins. The fluid comprising such Diels-Alder adduct and monoolefins can be subjected to a separating means to thereby recover a resulting monoolefin-containing fluid containing less than about 50 parts per million conjugated olefins. The process is particularly useful for purification of fluids containing normal alpha olefins.

Abstract: A process is provided for upgrading an oligomerization product through hydrogenation and isomerization with some selective/minor cracking resulting in a synthetic lube base oil with improved pour point and viscosity index. The upgrading process includes contacting the oligomerization product with a hydrogenation catalyst and an isomerization catalyst under conversion conditions, which include the presence of hydrogen and a temperature sufficient to promote hydrogenation and isomerization with some selective/minor cracking. The hydrogenation catalyst contains a porous carrier material and a group VIII metal while the isomerization catalyst contains an aluminosilicate zeolite.