Catalytic cracking of a residuum feedstock to produce lower molecular weight gaseous products
    1.
    发明授权
    Catalytic cracking of a residuum feedstock to produce lower molecular weight gaseous products 失效
    残渣原料的催化裂化产生较低分子量的气态产物

    公开(公告)号:US06916417B2

    公开(公告)日:2005-07-12

    申请号:US10457169

    申请日:2003-06-09

    摘要: The present invention provides a catalytic cracking process. The process includes introducing at least one species of a natural or synthetic residuum containing feedstock and a catalyst into a catalytic cracker reaction zone, and thereafter cracking the feedstock into a lower molecular weight gaseous product and spent cracking catalyst with hydrocarbonaceous product deposited thereon. Among others, the lower molecular weight gaseous product includes ethylene or propylene. The spent cracking catalyst obtained from the catalytic cracker reaction zone may then be regenerated using a first and a second regeneration zone. The first regeneration zone may be operated in an oxidizing mode resulting in a remaining coke of reduced hydrogen content which lowers the moisture content of flue gas in subsequent regeneration zones. The second regeneration zone, may be operated in a partial oxidizing mode and with a controlled carbon dioxide content in the second combustion atmosphere as a reactant with carbon for forming additional carbon monoxide in the flue gas of the second regeneration zone.

    摘要翻译: 本发明提供催化裂化方法。 该方法包括将至少一种含天然或合成残渣的原料和催化剂引入催化裂化反应区,然后将原料裂化成较低分子量的气态产物和沉积在其上的含烃产物的废裂解催化剂。 其中,较低分子量的气态产物包括乙烯或丙烯。 然后可以使用第一和第二再生区再生从催化裂化反应区获得的废裂化催化剂。 第一再生区可以以氧化模式操作,导致剩余的焦炭含量降低,这降低了后续再生区中烟气的含水量。 第二再生区可以以部分氧化模式操作,并且在第二燃烧气氛中具有受控的二氧化碳含量,作为与在第二再生区的烟道气中形成附加一氧化碳的碳的反应物。

    Method of producing synthesis gas from a regeneration of spent cracking catalyst
    3.
    发明授权
    Method of producing synthesis gas from a regeneration of spent cracking catalyst 失效
    从废裂化催化剂再生生产合成气的方法

    公开(公告)号:US06491810B1

    公开(公告)日:2002-12-10

    申请号:US09704085

    申请日:2000-11-01

    IPC分类号: B01J3820

    摘要: The present invention provides a method of producing a synthesis gas from a regeneration of spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first regeneration zone in a presence of a first oxygen and carbon dioxide atmosphere and at a first regeneration temperature. For example, a temperature that does not exceed about 1400° F., and more preferable a temperature that ranges from about 1150° F. to about 1400° F., may be used as the first regeneration temperature. The method further includes introducing the spent cracking catalyst from the first regeneration zone into a second regeneration zone in a presence of a second oxygen and carbon dioxide atmosphere, and producing a synthesis gas from cracking deposits located on the spent cracking catalyst within the second regeneration zone at a second regeneration temperature substantially greater than said first regeneration temperature. In a preferred embodiment, the second regeneration temperature ranges from about 1500° F. to about 1800°, and in a related embodiment is about 1800° F.

    摘要翻译: 本发明提供从废裂化催化剂的再生生产合成气的方法。 该方法包括在第一氧气和二氧化碳气氛的存在下并在第一再生温度下将废裂化催化剂引入第一再生区。 例如,可以使用不超过约1400°F的温度,更优选约1150°F至约1400°F范围内的温度作为第一再生温度。 该方法还包括在第二氧气和二氧化碳气氛的存在下将废裂化催化剂从第一再生区引入第二再生区,以及由位于第二再生区内的废裂化催化剂上的裂解沉积物产生合成气 在基本上大于所述第一再生温度的第二再生温度下。 在优选的实施方案中,第二再生温度范围为约1500°F至约1800°,在相关实施方案中为约1800°F

    Method of producing synthesis gas from a regeneration of spent cracking catalyst
    4.
    发明授权
    Method of producing synthesis gas from a regeneration of spent cracking catalyst 失效
    从废裂化催化剂再生生产合成气的方法

    公开(公告)号:US06913687B2

    公开(公告)日:2005-07-05

    申请号:US10413728

    申请日:2003-04-15

    摘要: The present invention provides a method of producing a synthesis gas from a regeneration of a spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first regeneration zone in a presence of a first atmosphere comprising a first oxygen containing gas at a first regeneration temperature. For example, a temperature that does not exceed about 1400° F., and more preferable, a temperature that ranges from about 1150° F. to about 1400° F., may be used as the first regeneration temperature. The method further includes introducing the spent cracking catalyst from the first regeneration zone into a second regeneration zone. The spent cracking catalyst is introduced into the second regeneration zone in a presence of a second atmosphere comprising a second oxygen containing gas and a carbon dioxide rich stream, and at a second regeneration temperature substantially greater than the first regeneration temperature. For example, the second regeneration zone may be operated at a temperature ranging from about 1500° F. to about 1800° F.

    摘要翻译: 本发明提供从废裂化催化剂的再生生产合成气的方法。 该方法包括在第一再生温度存在下,在含有第一含氧气体的第一气氛的存在下将废裂化催化剂引入第一再生区。 例如,可以使用不超过约1400°F,更优选为约1150°F至约1400°F的温度的温度作为第一再生温度。 该方法还包括将废裂化催化剂从第一再生区引入第二再生区。 在包含第二含氧气体和富二氧化碳流的第二气氛的存在下和在基本上大于第一再生温度的第二再生温度下,将废裂解催化剂引入第二再生区。 例如,第二再生区可以在约1500°F至约1800°F的温度下操作。