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

Resid catalytic cracker and catalyst for increasing propylene yield

A cracking catalyst and catalytic cracking technology, applied in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of weakening the negative impact of catalyst activity and selectivity

Inactive Publication Date: 2015-08-05
UOP LLC
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other methods, called metal passivation, keep the metals in place but reduce their negative impact on the activity and selectivity of the catalyst

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
  • Resid catalytic cracker and catalyst for increasing propylene yield
  • Resid catalytic cracker and catalyst for increasing propylene yield

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In a process to increase propylene yield, a light naphtha feedstock is obtained from a residual catalytic cracking zone. Any catalytic cracking process or equipment may be used as the primary cracking zone, including those suitable for processing catalytic cracking feedstocks derived from atmospheric or vacuum residues. An example of this process includes the Residual Catalytic Cracking Process ("RFCC") certified by UOP, LLC as figure 1 shown.

[0016] In some exemplary embodiments, the catalytic cracking zone uses a fluidized bed process. The cracking catalyst is combined with the lift gas and FCC feed at the first riser reactor 10 inlet. The catalytic cracker feedstock is a residue with vanadium, sodium, or a combination thereof. It is also contemplated that the feedstock contains other metals, including but not limited to nickel and zinc. Vanadium is present in an amount of 20 ppm to 400 ppm, preferably 20 ppm to 150 ppm, more preferably at least 30 ppm. Sodium ...

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

A process and catalyst for increasing the yield of propylene from residual oil feedstock includes obtaining residual oil feedstock from a vacuum distillation tower. The residual oil feedstock has contaminant metals such as sodium or vanadium. The residual oil feedstock is contacted with a cracking catalyst in a catalytic cracking zone to make products. A ZSM-5 zeolite, a binder, a filler and a metal trap are components of the cracking catalyst. The metal trap has a trapping agent in an outer shell of the catalyst, a trapping agent in the ZSM-5 binder or combinations thereof. After reacting, the cracking catalyst is separated from the products in a separator zone, then regenerated by combusting coke deposited on a surface of the cracking catalyst in an oxygen-containing environment. The cracking catalyst is returned to the catalytic cracking zone. The catalyst with the metal trap is also disclosed.

Description

[0001] Priority of earlier national applications [0002] This application claims priority to US Application Serial No. 14 / 169,236, filed January 31, 2014. field of invention [0003] The present invention relates to improving the yield of propylene in oil refining process. More particularly, it relates to processes and catalysts for increasing the yield of propylene from high metal content feedstocks. Background of the invention [0004] In a typical refinery operation, residual oil ("resid") is produced in a vacuum distillation column. As demand for petroleum fuels and petrochemicals increases, processing often low-value feedstocks such as residual oils becomes more important. In one process for converting resid into more valuable products, the resid is sent to a resid catalytic cracking zone ("RFCC") to produce higher value naphtha and distillate fuels. Cracking of high boiling residues to lighter hydrocarbon streams, such as naphtha or diesel, yields additional benefi...

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): C10G11/05B01J29/40B01J29/46
Inventor R·L·梅尔柏格E·D·加马斯-卡斯特拉诺斯C·R·霍维C·P·尼古拉斯
Owner UOP LLC