Patent ID: 9593055
Date: 2017-03-14
CPC Classifications: C07C

Claim:
1. A method for producing linear alpha-olefins (LAO) by an oligomerization of ethylene in the presence of a reaction feed comprising a solvent and a homogenous catalyst, comprising the steps of: (i) contacting ethylene with the reaction feed under oligomerization conditions and producing a reaction product, comprising, linear alpha-olefins, the solvent, ethylene, and the homogeneous catalyst; (ii) removing the reaction product as a reactor outlet stream via a reactor outlet piping system; (iii) transferring the reactor outlet stream to a catalyst deactivation and removal step; (iv) deactivating and removing the homogeneous catalyst from the reactor outlet stream, wherein at least one organic amine is added to the reaction feed and/or the reaction product prior to catalyst deactivation; and (v) recovering the organic amine from the reaction product after catalyst deactivation, wherein the organic amine is removed from the reactor outlet stream by distillation, extraction, or adsorption to obtain a recovered organic amine, and recycling the recovered organic amine to the reaction feed and/or the reaction product prior to catalyst deactivation.