Use of nickel-based alloys in a process for the thermal cracking of a
petroleum charge and reactor for performing the process
    1.
    发明授权
    Use of nickel-based alloys in a process for the thermal cracking of a petroleum charge and reactor for performing the process 失效
    镍基合金在石墨炉热裂解工艺中的应用及其应用

    公开(公告)号:US5242574A

    公开(公告)日:1993-09-07

    申请号:US776299

    申请日:1991-12-06

    摘要: A process and reactor are disclosed for the thermal cracking of a charge containing at least one hydrocarbon with at least one carbon atom, in which the charge is circulated in a metal reaction zone which includes a pyrolysis zone whose external wall is in thermal exchange relationship with a heating liquid. The reaction zone consists of an alloy containing, by weight, 66-82% nickel, 14-18% chromium, and 4-6% aluminum. This alloy, which has already been preoxidized, may be covered, at least in the reaction zone, with at least one layer formed by an oxide of at least one metal and/or at least one metal carbide and/or at least one metal nitride and/or at least one metal silicide. The invention finds application for vapor-phase cracking and dehydrogenation of hydrocarbon charges.

    摘要翻译: PCT No.PCT / FR90 / 00392 Sec。 371 1991年12月6日第 102(e)日期1991年12月6日PCT提交1990年6月5日PCT公布。 出版物WO90 / 15119 公开了一种用于热分解含有至少一种具有至少一个碳原子的烃的方法和反应器,其中电荷在金属反应区中循环,所述金属反应区包括热解区,其外部 壁与加热液体具有热交换关系。 反应区由含有重量百分比为66-82%镍,14-18%铬和4-6%铝的合金组成。 已经预氧化的该合金可以至少在反应区中被至少一层由至少一种金属和/或至少一种金属碳化物的氧化物形成的层和/或至少一种金属氮化物 和/或至少一种金属硅化物。 本发明应用于烃电荷的气相裂化和脱氢。