Patent ID: 8957269
Filing Date: 2015-02-17
Classification: C07C,C10G,Y02P

Abstract:
1. A method of producing olefinic monomers for the production of a polymer, comprising the following stages: feeding bio oil and hydrogen gas into a catalyst bed, wherein said bio oil is a fraction separated from crude tall oil, said bio oil consisting of 95% to 98% fatty acids of tall oil and 2% to 5% of resin acids of tall oil; catalytically deoxygenating the bio oil by with hydrogen in the catalyst bed in the presence of a deoxygenation catalyst; cooling down and dividing a flow exiting the catalyst bed into a hydrocarbon-bearing liquid phase containing at least a portion of aromatics and a hydrogen-bearing gas phase; separating water from the hydrocarbon-bearing liquid phase to obtain a hydrocarbon-bearing liquid; and subjecting the hydrocarbon-bearing liquid containing said at least a portion of aromatics to stream cracking to form a product containing olefinic monomers.