公开(公告)号：US20040124124A1

公开(公告)日：2004-07-01

申请号：US10330967

申请日：2002-12-30

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Andrea de Rezende Pinho ,  Jose Geraldo Furtado Ramos ,  Wilson Kenzo Huziwara ,  Claudio Fonseca Machado dos Santos ,  Mauro Silva ,  Aurelio Medina Dubois ,  Nelson Patricio Junior ,  Jorivaldo Medeiros ,  Paulo Sergio Freire ,  Walcondiney Pereira Nunes ,  Paulo Sergio Moreira Assumpcao

IPC: C10G011/00 ,  B01J008/18

CPC classification number: B01J8/0055 ,  B01J8/003 ,  B01J8/1818 ,  B01J8/1881 ,  C10G11/18

Abstract: An apparatus for downflow fluid catalytic cracking is described, which comprises a regenerated catalyst riser carrying regenerated catalyst and a carrying fluid, those being directed through a crossover section to a distributor that will centrifuge gas and separate catalyst from carrying fluid, the catalyst being directed to a downflow reactor through a distributing basket provided with perforations. The upper part of the reactor is provided with feed injectors, which atomize the feed so that feed vaporization and feed and catalyst admixture is optimized. After the cracking reaction in downflow reactor, reaction products are separated and spent catalyst is directed to stripping and regeneration sections. The FCC process carried out in the apparatus is also described.

Abstract translation: 描述了一种用于下流流化床催化裂化的装置，其包括承载再生催化剂和载运流体的再生催化剂提升器，其通过交叉部分引导至将离心分离器并将催化剂与载运流体分离的分配器，催化剂被引导至 通过设有穿孔的分配篮的下流反应器。 反应器的上部设置有进料喷射器，其使进料雾化，使得进料蒸发和进料和催化剂混合物得到优化。 在下流式反应器中进行裂解反应后，分离反应产物，将废催化剂导向汽提和再生段。 还描述了在设备中执行的FCC处理。