To produce propylene, and, moving bed method for recirculating a portion of spent catalyst

    公开(公告)号:JP5030408B2

    公开(公告)日:2012-09-19

    申请号:JP2005267809

    申请日:2005-09-15

    摘要: Oligocracking of a light olefinic hydrocarbonated charge (I), for the preparation of propylene, comprises allowing (I) to circulate in a cross-flow; continuously or discontinuously drawing out a flow of used catalyst (II); recycling a primary fraction of the used (II); transferring the complementary fraction of used (II) into a zone of regeneration; and reintroducing the fraction of regenerated (II) into the upper section of the reactor. Process of oligocracking of light olefinic hydrocarbonated charges (I) comprising 2-12C (preferably 4-12C) hydrocarbons, for the preparation of propylene, comprises allowing (I) to circulate in a cross-flow, compared to the catalyst (II), in a radial reactor functioning in a fluidized bed; continuously or discontinuously drawing out a flow of used (II) at the lower section of the reactor; recycling a primary fraction of the used (II) at the head of the rector; transferring the complementary fraction of used (II) into a regeneration zone, where it is subjected to at least one stage of controlled oxidation; and reintroducing the fraction of regenerated (II) in mixture with the primary fraction of used (II) into the upper section of the rector, where the supported (II) comprises at least a zeolite (MEL, MFI, NES, EUO, FER, CHA, MFS and/or MWW, or NU-85, NU-86, NU-88 and/or IM-5) having a selectivity form, and silicon/aluminium ratio of 50-1200).

    区画された小容量反応器
    7.
    发明专利

    公开(公告)号:JP2020508858A

    公开(公告)日:2020-03-26

    申请号:JP2019546790

    申请日:2018-01-26

    IPC分类号: B01J8/02 B01J8/06

    摘要: 処理すべき炭化水素供給原料のラジアルフロー式触媒反応器(10)は、 — 垂直軸(AX)に沿って延在する少なくとも1個の触媒モジュール(15)の形態をなし、実質上円筒状のアウターシェル(14)に取り囲まれた反応帯域(13)と、 — 反応帯域(13)の外側に、前記触媒モジュール(15)と同一レベルで位置する環状帯域(30)とを備え、 前記触媒反応器は、該反応器が空間(27)を備え、前記空間(27)は、少なくとも1個の触媒モジュール(15)の2つの側壁(23、24)間に位置し且つ、反応帯域(13)の外側に位置して、前記環状帯域(30)に開口しており、前記空間(27)は、少なくとも1つの固形ネット(26)を備え、固形ネット(26)は、垂直軸(AX)に沿って延在し且つ、収集手段(29)に隣接して位置することを特徴とする。 【選択図】 図3