Check patentability & draft patents in minutes with Patsnap Eureka AI!

A process for the selective hydrogenation and hydrodesulferization of a pyrolysis gasoline feedstock

A pyrolysis gasoline, selective technology, applied in the field of olefins and sulfur compounds, selective hydrogenation of diolefins contained in the pyrolysis gasoline feedstock, can solve the problem of hydrogenation without producing aromatic compounds, etc.

Active Publication Date: 2012-11-28
SHELL INT RES MAATSCHAPPIJ BV
View PDF13 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is also expected that this single-step hydroprocessing process would allow for the selective hydrogenation of dienes and mono-olefins to their corresponding alkanes without correspondingly significant amounts of aromatics being hydrogenated

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
  • A process for the selective hydrogenation and hydrodesulferization of a pyrolysis gasoline feedstock
  • A process for the selective hydrogenation and hydrodesulferization of a pyrolysis gasoline feedstock
  • A process for the selective hydrogenation and hydrodesulferization of a pyrolysis gasoline feedstock

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0056] Example (calculation)

[0057] This computational example presents a summary of some of the results produced by carrying out a computer simulation model of an embodiment of the method of the invention.

[0058] For this simulation, the process included a single phase separator with a heated high-pressure separator (phase separator) for receiving the reactor effluent from the reactor and separating the reactor effluent into liquid and vapor fractions. Reactor step. The reactor effluent is heat exchanged with the incoming pyrolysis gasoline feedstock to be introduced into the reactor by indirect heat exchange, such as through the use of shell and tube heat exchangers, prior to introducing the reactor effluent into the hot high pressure separator. The vapor fraction from the hot high pressure separator is cooled, for example by an air-cooled heat exchanger, such as a fin-fan heat exchanger, and then passed through and introduced for separation of the cooled vapor fraction...

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

PropertyMeasurementUnit
bromine numberaaaaaaaaaa
Login to View More

Abstract

Disclosed is a process for the selective hydrogenation of diolefins and sulfur compounds that are contained in a pyrolysis gasoline feedstream. The process includes utilizing a single hydrotreating reaction stage by introducing the pyrolysis gasoline feedstock that includes a diolefin concentration and an organic sulfur concentration into a reactor that is loaded with a high activity hydrotreating catalyst and which is operated under selective hydrogenation conditions. A reactor effluent having a reduced diolefin concentration and a reduced organic sulfur concentration is yielded from the reactor and is separated into a portion that is recycled as a reactor feed. The remaining portion of the reactor effluent is passed downstream for further processing or handling.

Description

technical field [0001] The present invention relates to a process for the selective hydrogenation of diolefins, olefins and sulfur compounds contained in pyrolysis gasoline feedstocks. Background technique [0002] Pyrolysis gasoline is obtained by high-temperature pyrolysis of gaseous hydrocarbons (such as ethane and propane) or liquid hydrocarbons (such as naphtha and gas oil) to produce lower olefins (such as ethylene and propylene), as a by-product usually in liquid form. product. Pyrolysis gasoline includes components boiling in the gasoline boiling range and is highly aromatic and olefinic. Because of the high octane components contained in pyrolysis gasoline, it is sometimes useful as a high octane blending component blended into motor gasoline. More importantly, the preferred use of pyrolysis gasoline is as a source of aromatics due to its high aromatics concentration. However, pyrolysis gasoline generally contains undesirable components such as dienes (also somet...

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): C10G45/02C10G45/32C10G69/06
CPCC10G2300/104C10G2300/4081C10G2300/4018C10G69/06C10G45/02C10G45/32C10G2300/1044C10G2400/30C10G2300/202
Inventor D·C·格里诺贝尔P·B·希梅尔法布M·N·特雷比格B·S·范德维尔普
Owner SHELL INT RES MAATSCHAPPIJ BV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com