Energy-saving environmentally-friendly multifunctional heavy oil processing method and reactor

一种节能环保多功能重油加工方法及反应器

  • Inventors: LIU YINGJU
  • Assignees: 刘英聚
  • Publication Date: December 30, 2015
  • Publication Number: CN-105199774-A

Abstract

一种节能环保多功能重油加工方法,属于石油化工技术领域,用于重油催化裂化装置节省蒸汽、减少污水、多产丙烯、汽油降烯烃。包括预提升器、提升管反应器、沉降器、高温催化剂进入、提升、进料与雾化、防沉降器结焦,其特征是:进料采用工艺媒质雾化,工艺媒质包括C4~C6烯烃、催化汽油、催化轻汽油、焦化汽油、石脑油、干气、脱氢气乙烯后干气;预提升器采用干气或脱氢气乙烯后干气作为提升介质;沉降器防焦气体采用脱氢气乙烯后干气;或工艺媒质与蒸汽配合使用。还提供了实现本发明方法的进料喷嘴、预提升器、沉降器防焦环管。该反应器可减少蒸汽用量、减少污水量,并具有多产丙烯、汽油降烯烃功能。应用于重油催化裂化装置。
The invention relates to an energy-saving environmentally-friendly multifunctional heavy oil processing method, and belongs to the technical field of petrochemical engineering. The method is used for a heavy oil catalytic cracking device to save steam, reduce sewage and achieve propylene productivity and gasoline olefin reduction. A pre-riser, a lifting pipe reactor and a settling device are involved in the method, and the energy-saving environmentally-friendly multifunctional heavy oil processing method includes the steps of high-temperature catalyst entering, lifting, feeding and atomizing and anti-settling device coking, and is characterized in that fed materials are atomized by the adoption of technological media, and the technological media comprise C4-C6 olefin, catalytic gasoline, catalytic light gasoline, cocker gasoline, naphtha, dry gas and dry gas after hydrogen ethylene is removed; dry gas or dry gas after hydrogen ethylene is removed is used as rising media of the pre-riser; dry gas after hydrogen ethylene is removed is adopted as anti-coking gas of the settling device; or the technological media and steam are used in cooperation. A feeding nozzle, the pre-riser and a settling device anti-coking annular pipe are further involved in the method. The reactor can reduce the usage amount of steam and the amount of sewage, and has the functions of achieving propylene productivity and gasoline olefin reduction. The method is applied to the heavy oil catalytic cracking device.

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