Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for maximum distillate production from fluid catalytic cracking units (FCCU)

A cracking product and yield technology, applied in the field of reactors, can solve the problem of increasing the cost of fractionation of light cycle oil feed and other problems

Active Publication Date: 2014-07-23
TECH PRECESS TECH INC
View PDF13 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding feed fractionation to light cycle oil would be too expensive if existing equipment were not available

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for maximum distillate production from fluid catalytic cracking units (FCCU)
  • Process for maximum distillate production from fluid catalytic cracking units (FCCU)
  • Process for maximum distillate production from fluid catalytic cracking units (FCCU)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] According to the present invention, there is provided an improved hydrocarbon cracking system for maximizing the production of middle distillates, said system comprising: a single multi-stage catalyst regeneration unit which converts partially regenerated catalyst and / or fully The regenerated catalyst is provided to a first riser reactor for receiving a hydrocarbon feed and a second riser reactor for receiving a recycle feed. Partially regenerated catalysts and fully regenerated catalysts have different MAT activities due to different CRC levels.

[0041] The present invention contemplates a catalytic cracking process aimed at maximizing the production of middle distillates from hydrocarbon feedstocks. Hereinafter, the middle distillate will be referred to as light cycle oil (LCO), which is a hydrocarbon cut having a boiling range from about 302°F to about 716°F. As is well understood by those skilled in the art, this boiling range may vary to some extent from one refi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides an improved fluidized catalytic cracking process coupled with a two stage regeneration process in which the activity of the circulating catalyst is independently controlled for cracking hydrocarbon feedstocks or the vapors at low severity to produce maximum light cycle oil / distillate in one riser whilst cracking recycle streams comprising heavy cycle oil (HCO), light cracked naphtha (LCN) etc. in a second riser operating at high severity to produce LPG.

Description

technical field [0001] The present invention relates to reactors for increasing or maximizing the production of middle distillates from hydrocarbon feedstocks. More specifically, the present invention relates to a unique method and reactor system for enhancing or maximizing the production of middle distillates, such as light cycle oil, from hydrocarbon feedstocks. Background technique [0002] It is common commercial practice to produce gasoline, heating oil and diesel by cracking heavy petroleum fractions. A major commercial technology used to achieve this conversion is fluid catalytic cracking (FCC). In FCC, a feed petroleum fraction (eg, vacuum gas oil, heavy atmospheric gas oil, etc.) is contacted with hot active catalyst particles at high temperature and low pressure of about 1 to 5 atmospheres absolute without added hydrogen. The catalyst should be of sufficient quantity and temperature to vaporize the oil feed, raise the oil feed to a cracking temperature of about 9...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07C4/02
CPCB01J21/08B01J21/12B01J23/02B01J29/04B01J29/08B01J29/40B01J21/04B01J21/066B01J21/20B01J23/92B01J29/90C10G51/026C10G51/06C10G11/182C10G2400/04C10G2300/701Y02P20/582C07C4/06C10G11/18
Inventor E·格博佐依M·博里W·S·莱茨希P·勒罗伊C·桑特纳J·L·小罗斯
Owner TECH PRECESS TECH INC