HYDROGEN TREATMENT OF IMPURE TALL OIL FOR THE PRODUCTION OF AROMATIC MONOMERS

    公开(公告)号:CA2801397A1

    公开(公告)日:2011-12-08

    申请号:CA2801397

    申请日:2011-06-03

    Applicant: STORA ENSO OYJ

    Abstract: The present invention relates to a method of manufacturing aromatic hydrocarbons, which are suitable for the production of terephthalic acid, from tall oil-based raw material. According to the invention, the raw material that contains tall oil or its fraction is catalytically deoxygenated with hydrogen, and one or more aromatic hydrocarbons (A) that can be converted into terephthalic acid are separated from the deoxygenated reaction yield (10). The deoxygenation catalyst is preferably a NiMo catalyst and, in addition, a cracking catalyst can be used, such as an acidic zeolite catalyst. The separated hydrocarbon is preferably p-xylene, o-xylene or p-cymene. According to the invention, these can be converted by oxidation and, when needed, by a re-arrangement reaction into terephthalic acid that is suitable for the source material of the manufacture of bio-based polyethylene terephthalate.

    53.
    发明专利
    未知

    公开(公告)号:FI121626B

    公开(公告)日:2011-02-15

    申请号:FI20095079

    申请日:2009-01-29

    Applicant: STORA ENSO OYJ

    Abstract: The invention relates to a method of producing olefinic monomers for the production of a polymer. The invention particularly relates to the production of tall oil-based biopolymers, such as polyolefins. In the stages of the method bio oil, with a content of over 50% of fatty acids of tall oil and no more than 25% of resin acids of tall oil, and hydrogen gas are fed into a catalyst bed (7); the oil is catalytically deoxygenated in the bed by hydrogen; the flow exiting the bed is cooled down and divided into a hydrocarbon-bearing liquid phase (10) and a gas phase; and the hydrocarbon-bearing liquid (13) is subjected to steam cracking (4) to provide a product containing polymerizing olefins. The deoxygenation in the bed can be followed by a catalytic cracking or, with a suitable catalyst, the deoxygenation and cracking can be simultaneous. The separated hydrogen-bearing gas phase can be circulated in the process.

    55.
    发明专利
    未知

    公开(公告)号:FI20105630A0

    公开(公告)日:2010-06-03

    申请号:FI20105630

    申请日:2010-06-03

    Applicant: STORA ENSO OYJ

    Abstract: Biobased p-cymene and methods of producing same, which can further be converted to terephtalate. Further, a method is described for converting crude sulfate turpentine recovered from chemical wood pulping into p-cymene and eventually to terephtalic acid of biological origin, and products thereof respectively. In said method, both conversion and desulfurization is realized in one reaction step. The disclosure is also related to use of zeolite catalysts in said method.

    refino catalítico de terrenos de origem de polpa

    公开(公告)号:BR112012030782A8

    公开(公告)日:2021-07-06

    申请号:BR112012030782

    申请日:2011-06-03

    Applicant: STORA ENSO OYJ

    Abstract: refino catalítico de terpenos de origem de polpa. a presente invenção está correlacionada a um composto de p-cimeno de origem biológica, que pode ser ainda convertido em tereftalato. além disso, é descrito um método para conversão de sulfato de bruto de terebentina (aguarrás), recuperado de polpação química de madeira, em p-cimeno e, eventualmente, em ácido tereftálico de origem biológica e derivados do mesmo, respectivamente. no dito método, as etapas de conversão e dessulfurização são realizadas em uma única etapa reacional. a presente divulgação é tambem correlacionada ao uso de catalisadores de zeólito no referido método.

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