Methods for reducing flue gas emissions from fluid catalytic cracking unit regenerators

    公开(公告)号:US10246645B2

    公开(公告)日:2019-04-02

    申请号:US15473162

    申请日:2017-03-29

    申请人: UOP LLC

    IPC分类号: C10G11/18

    摘要: Methods for reducing flue gas particulate emissions from fluid catalytic cracking unit regenerators are provided. In one embodiment, a method for reducing flue gas particulate emissions from an FCC unit regenerator includes the steps of combining biochar with a hydrocarbon feedstock to generate a biochar-containing feedstock and contacting the biochar-containing feedstock with an FCC catalyst. In another embodiment, a method for reducing flue gas particulate emissions from a FCC unit regenerator includes the steps of fluidizing catalyst fines and biochar particles in a fluidizing gas and adhering a portion of the catalyst fines to the biochar particles while in the fluidizing gas.

    PROCESSES FOR MINIMIZING CATALYST FINES IN A REGENERATOR FLUE GAS STREAM
    3.
    发明申请
    PROCESSES FOR MINIMIZING CATALYST FINES IN A REGENERATOR FLUE GAS STREAM 审中-公开
    在再生器FLER GAS STREAM中最小化催化剂成分的方法

    公开(公告)号:US20160312127A1

    公开(公告)日:2016-10-27

    申请号:US14693644

    申请日:2015-04-22

    申请人: UOP LLC

    IPC分类号: C10G11/00

    CPC分类号: C10G11/187

    摘要: Process for minimizing the amount of catalyst fines in a flue gas from a catalyst regenerator. Pyrolysis oil is injected into the reaction zone, preferably downstream from the feedstream inlet. The catalyst fines will be passed along with the hydrocarbon effluent stream and can be removed with a filter or other similar device. The amount of pyrolysis oil can be controlled, for example, based upon the opacity of the flue gas from the catalyst regenerator, or based upon the amount of catalyst injected into the reaction zone.

    摘要翻译: 用于最小化来自催化剂再生器的烟道气中的催化剂细粉量的方法。 将热解油注入反应区,优选在进料流入口的下游。 催化剂细粉将与烃流出物流一起通过,并可用过滤器或其它类似装置除去。 热解油的量可以例如基于来自催化剂再生器的烟道气的不透明度或基于注入到反应区中的催化剂的量来控制。

    APPARATUSES AND METHODS FOR FLUID CATALYTIC CRACKING WITH LIMITED PARTICULATE EMISSIONS
    4.
    发明申请
    APPARATUSES AND METHODS FOR FLUID CATALYTIC CRACKING WITH LIMITED PARTICULATE EMISSIONS 审中-公开
    具有有限颗粒排放的流体催化裂化装置和方法

    公开(公告)号:US20160090538A1

    公开(公告)日:2016-03-31

    申请号:US14499639

    申请日:2014-09-29

    申请人: UOP LLC

    IPC分类号: C10G11/05 C10G3/00 C10G55/06

    摘要: Methods and apparatuses are provided for cracking a hydrocarbon. The method includes contacting a first hydrocarbon stream with a cracking catalyst in a riser. The cracking catalyst is regenerated in a regenerator to produce a flue gas stream having a particulate concentration, where the flue gas stream is vented. A second stream is contacted with the cracking catalyst in the riser while the first hydrocarbon stream is contacted with the catalyst, where the second stream includes a natural oil. The particulate concentration is a second particulate concentration while the second stream contacts the cracking catalyst, and a first particulate concentration prior to the second stream contacting the cracking catalyst. The first particulate concentration is greater than the second particulate concentration.

    摘要翻译: 提供了开裂烃的方法和装置。 该方法包括使第一烃流与提升管中的裂化催化剂接触。 裂化催化剂在再生器中再生以产生具有颗粒浓度的烟道气流,其中烟道气流被排出。 第二物流与提升管中的裂化催化剂接触,同时第一烃流与催化剂接触,其中第二流包含天然油。 颗粒浓度是第二颗粒浓度,而第二流接触裂化催化剂,第二流接触裂化催化剂之前的第一颗粒浓度。 第一颗粒浓度大于第二颗粒浓度。