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    • 4. 发明授权
    • Production of olefins
    • 生产烯烃
    • US06951968B1
    • 2005-10-04
    • US09206218
    • 1998-12-05
    • Jean-Pierre DathLuc DelormeJacques-François GrootjansXavier VanhaerenWalter Vermeiren
    • Jean-Pierre DathLuc DelormeJacques-François GrootjansXavier VanhaerenWalter Vermeiren
    • B01J29/40C10G11/05C07C4/06C10G11/00
    • C10G11/05
    • A process for the production of olefins by catalytic cracking, the process comprising feeding a hydrocarbon feedstock containing at least one olefin of C4 or greater over a MFI-type crystalline silicate catalyst to produce an effluent containing at least one olefin of C2 or greater by catalytic cracking which is selective towards light olefins in the effluent, whereby for increasing the catalyst stability by limiting formation of coke thereon during the cracking process the catalyst has a silicon/aluminum atomic ratio of at least about 180, the olefin partial pressure is from 0.1 to 2 bars, and the feedstock contacts the catalyst at an inlet temperature of from 500 to 600° C. A process for increasing the stability of a MFI-type crystalline silicate catalyst, by limiting formation of coke on the catalyst, for catalytically cracking a hydrocarbon feedstock containing at least one olefin of C4 or greater to produce an effluent containing at least one olefin of C2 or greater, the process comprising pre-treating the catalyst so as to increase the silicon/aluminum atomic ratio thereof to a value of at least about 180 by heating the catalyst in steam and de-aluminating the catalyst by treating the catalyst with a complexing agent for aluminum.
    • 一种通过催化裂化生产烯烃的方法,该方法包括在MFI型结晶硅酸盐催化剂上进料含有至少一种C 4或更高的C 4以上的烯烃的烃原料以产生至少含有 通过对流出物中的轻质烯烃具有选择性的催化裂化产生C 2 O 2以上的一种烯烃,由此通过在裂化过程中限制焦炭的形成来提高催化剂的稳定性,催化剂具有硅/铝 原子比为至少约180,烯烃分压为0.1至2巴,并且原料在500-600℃的入口温度下接触催化剂。提高MFI型结晶硅酸盐的稳定性的方法 催化剂,通过限制催化剂上的焦炭的形成,用于催化裂化含有至少一种C 4或更高的烯烃的烃原料以产生含有至少一种烯烃的流出物 该方法包括预处理催化剂,以便通过在蒸汽中加热催化剂和除去催化剂而将硅/铝原子比增加至至少约180的值, 通过用铝络合剂处理催化剂来使催化剂镀铝。
    • 7. 发明授权
    • Production of olefins
    • 生产烯烃
    • US07087155B1
    • 2006-08-08
    • US09206216
    • 1998-12-05
    • Jean-Pierre DathLuc DelormeJacques-François GrootjansXavier VanhaerenWalter Vermeiren
    • Jean-Pierre DathLuc DelormeJacques-François GrootjansXavier VanhaerenWalter Vermeiren
    • C10G11/04C10G45/04C10G45/02
    • C10G11/05C10G2300/1044C10G2300/4018C10G2300/4025C10G2400/20
    • A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards light olefins in the effluent, the process comprising contacting a hydrocarbon feedstock containing olefins having a first composition of at least one olefinic component with a crystalline silicate catalyst to produce an effluent having a second composition of at least one olefinic component, the feedstock and the effluent having substantially the same olefin content by weight therein as the feedstock. A process for the cracking of olefins in a hydrocarbon feedstock containing at least one diene and at least one olefin, the process comprising hydrogenating the at least one diene to form at least one olefin in the presence of a transition metal-based hydrogenation catalyst at an inlet temperature of from 40 to 200° C. and an absolute pressure of from 5 to 50 bar with a hydrogen/diene molar ratio of at least around 1, and catalytically cracking the olefins in the presence of a crystalline silicate catalyst at an inlet temperature of from 500 to 600° C. and an olefin partial pressure of from 0.1 to 2 bar to produce at least one olefin having a different olefin distribution with respect to average carbon number than the at least one olefin in the feedstock.
    • 一种用于裂解对流出物中的轻质烯烃具有选择性的富烯烃的原料的方法,该方法包括将含有至少一种烯烃组分的第一组分的烯烃的烃原料与结晶硅酸盐催化剂接触以产生具有 至少一种烯烃组分的第二组合物,所述原料和流出物在其中与原料基本上具有基本上相同的烯烃含量。 一种用于在含有至少一种二烯和至少一种烯烃的烃原料中烯烃裂化的方法,该方法包括在过渡金属基加氢催化剂存在下使至少一种二烯氢化形成至少一种烯烃 入口温度为40至200℃,绝对压力为5至50巴,氢/二烯摩尔比至少约为1,并在结晶硅酸盐催化剂存在下在入口温度下催化裂解烯烃 500至600℃,烯烃分压为0.1至2巴,以产生相对于原料中至少一种烯烃的平均碳数具有不同烯烃分布的至少一种烯烃。