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    Process for the production of 1,3-butadiene
    2.
    发明授权
    Process for the production of 1,3-butadiene 有权
    1,3-丁二烯生产工艺

    公开(公告)号：US09090544B2

    公开(公告)日：2015-07-28

    申请号：US14366416

    申请日：2012-12-24

    Applicant: versalis S.p.A.

    Inventor： Alessandro Del Seppia ,  Fabio Assandri ,  Elena Ghirardo ,  Carmelo Vella

    IPC: C07C41/09 ,  C07C5/32 ,  C07C41/06 ,  C07C5/333 ,  C07C7/08

    CPC classification number: C07C41/09 ,  C07C5/322 ,  C07C5/3332 ,  C07C5/3335 ,  C07C5/3337 ,  C07C7/08 ,  C07C41/06 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2523/08 ,  C07C2523/14 ,  C07C2523/42 ,  C07C2523/62 ,  C07C2523/63 ,  C07C11/167 ,  C07C43/046

    Abstract: The present invention relates to a process for the production of 1,3-butadiene which comprises the following phases: a) extracting, by means of extractive distillation, in an extraction section, an end-product containing 1,3-butadiene and a raffinate product, starting from mixtures of saturated and unsaturated compounds having from 2 to 10 carbon atoms in the chain; b) sending the raffinate product to a dehydrogenation section; c) dehydrogenating the raffinate product in the dehydrogenation section in the presence of a dehydrogenation catalyst and an inert product so as to form a reaction effluent containing 1,3-butadiene; d) recirculating the reaction effluent containing 1,3-butadiene directly to the extraction section after separating the incondensable compounds.

    Abstract translation: 本发明涉及一种生产1,3-丁二烯的方法，该方法包括以下阶段：a）通过萃取蒸馏提取含有1,3-丁二烯和萃余液的最终产物 产物，从链中具有2至10个碳原子的饱和和不饱和化合物的混合物开始; b）将萃余液产品送至脱氢段; c）在脱氢段中，在脱氢催化剂和惰性产物的存在下使提余物产物脱氢，以形成含有1,3-丁二烯的反应流出物; d）在分离不可冷凝化合物之后，将含有1,3-丁二烯的反应流出物直接再循环到萃取部分。

    PROCESS FOR THE PRODUCTION OF 1,3-BUTADIENE
    3.
    发明申请
    PROCESS FOR THE PRODUCTION OF 1,3-BUTADIENE 有权
    生产1,3丁二烯的方法

    公开(公告)号：US20150005532A1

    公开(公告)日：2015-01-01

    申请号：US14366416

    申请日：2012-12-24

    Applicant: versalis S.p.A.

    Inventor： Alessandro Del Seppia ,  Fabio Assandri ,  Elena Ghirardo ,  Carmelo Vella

    IPC: C07C41/09 ,  C07C5/32

    CPC classification number: C07C41/09 ,  C07C5/322 ,  C07C5/3332 ,  C07C5/3335 ,  C07C5/3337 ,  C07C7/08 ,  C07C41/06 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2523/08 ,  C07C2523/14 ,  C07C2523/42 ,  C07C2523/62 ,  C07C2523/63 ,  C07C11/167 ,  C07C43/046

    Abstract: The present invention relates to a process for the production of 1,3-butadiene which comprises the following phases: a) extracting, by means of extractive distillation, in an extraction section, an end-product containing 1,3-butadiene and a raffinate product, starting from mixtures of saturated and unsaturated compounds having from 2 to 10 carbon atoms in the chain; b) sending the raffinate product to a dehydrogenation section; c) dehydrogenating the raffinate product in the dehydrogenation section in the presence of a dehydrogenation catalyst and an inert product so as to form a reaction effluent containing 1,3-butadiene; d) recirculating the reaction effluent containing 1,3-butadiene directly to the extraction section after separating the incondensable compounds.

    Abstract translation: 本发明涉及一种生产1,3-丁二烯的方法，该方法包括以下阶段：a）通过萃取蒸馏提取含有1,3-丁二烯和萃余液的最终产物 产物，从链中具有2至10个碳原子的饱和和不饱和化合物的混合物开始; b）将萃余液产品送至脱氢段; c）在脱氢段中，在脱氢催化剂和惰性产物的存在下使提余物产物脱氢，以形成含有1,3-丁二烯的反应流出物; d）在分离不可冷凝化合物之后，将含有1,3-丁二烯的反应流出物直接再循环到萃取部分。

    AMMOXIMATION REACTOR FOR CYCLOHEXANONE OXIME PRODUCTION
    6.
    发明申请
    AMMOXIMATION REACTOR FOR CYCLOHEXANONE OXIME PRODUCTION 审中-公开
    环己酮氧化酶生产的抗氧化反应剂

    公开(公告)号：US20140093437A1

    公开(公告)日：2014-04-03

    申请号：US14116046

    申请日：2012-04-27

    Applicant: Versalis S.P.A.

    Inventor： Alessandro Del Seppia ,  Elena Ghirardo

    IPC: B01J8/10

    Abstract: Ammoximation reactor for cyclohexanone oxime production comprising: (a) a reactor vessel provided with a stirrer; (b) an internal filtering system; (c) an internal liquid ammonia evaporation coil; (d) an internal gaseous ammonia toroidal distributor; (e) an external cyclohexanone toroidal distributor; (f) an internal hydrogen peroxide toroidal distributor; (g) an internal cylindrical draft tube; (h) an external cooling jacket. Said ammoximation reactor allows to obtain a better mixing of the components of the ammoximation reaction and to maximize both the heat-transfer coefficients and the mass-transfer coefficients. Moreover, said ammoximation reactor allows to increase the packing time of the catalyst used in the ammoximation reaction on the filtering system (i.e. the plugging phenomena) so as to avoid the necessity of carrying out the backwashings with nitrogen. Moreover, said ammoximation reactor does not require external downstream separation units to separate the catalyst from the reaction mixture obtained from the ammoximation reaction.

    Abstract translation: 用于环己酮肟生产的肟化反应器包括：（a）设置有搅拌器的反应器容器; （b）内部过滤系统; （c）内部液氨蒸发线圈; （d）内部气态氨环形分布器; （e）外部环己酮环形分配器; （f）内部过氧化氢环形分配器; （g）内部圆柱形引流管; （h）外部冷却套。 所述氨肟化反应器允许获得氨肟化反应组分的更好混合并使传热系数和质量传递系数最大化。 此外，所述氨肟化反应器允许增加过氧化反应中用于过氧化反应的催化剂的填充时间（即堵塞现象），以避免用氮气进行反冲洗的必要性。 此外，所述氨肟化反应器不需要外部下游分离单元，以将催化剂与从氨肟化反应获得的反应混合物分离。

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