Device and method for preparing hydrocarbon-rich bio-oil by continuous lignin catalytic pyrolysis

A catalytic pyrolysis and bio-oil technology, applied in chemical instruments and methods, hydrocarbon oil treatment, separation methods, etc., can solve the problems of increasing the possibility of carbon deposition precursors, low yield of target products, catalyst deactivation, etc., to achieve Long-term operation, easy recovery, slow down the effect of inactivation rate

Inactive Publication Date: 2020-04-28
SHANDONG UNIV OF TECH
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the directional conversion of lignin pyrolysis gas, the presence of oxygen-containing macromolecular compounds in the initial lignin pyrolysis gas i

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
  • Device and method for preparing hydrocarbon-rich bio-oil by continuous lignin catalytic pyrolysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] A device for producing hydrocarbon-rich bio-oil by catalytic pyrolysis of continuous lignin, such as figure 1 As shown, it includes a feeding system, a fluidized bed reactor, a cyclone separation system, a fixed bed reactor, a bio-oil collection system, a gas detection system, and a device control system. The entire device realizes continuous and stable operation through the device control system.

[0037] The feeding system consists of two parts, a rotary scraper feede...

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 invention provides a device and a method for preparing hydrocarbon-rich bio-oil by continuous lignin catalytic pyrolysis. The device comprises a feeding system, a fluidized bed reactor, a cycloneseparation system, a fixed bed reactor, a bio-oil collection system, a gas detection system, a device control system and a carrier gas circulation system. The application method comprises the steps that: lignin enters the fluidized bed reactor through the feeding system to carry out deep cracking under the action of a bond breaking catalyst; the cyclone separation system separates and purifies a cracking product generated in the fluidized bed reactor, the cracking product enters the fixed bed reactor and is subjected to a further reforming reaction under the action of a reforming catalyst, theproduct is condensed to obtain hydrocarbon-rich bio-oil, and meanwhile, non-condensed gas is collected and passes through a fan, a gas mixing tank and a preheater to realize carrier gas self-circulation. According to the method, the hydrocarbon-rich bio-oil can be efficiently prepared by modulating the reaction working condition and the catalyst combination, the process is simple, and the methodhas good economic benefits and commercialization prospects.

Description

technical field [0001] The invention relates to the field of high-value lignin utilization, in particular to a device and method for producing hydrocarbon-rich bio-oil by continuous catalytic pyrolysis of lignin. Background technique [0002] Rapid pyrolysis liquefaction technology can convert low-grade lignin into bio-oil, solid charcoal and combustible gas, which is one of the main ways of high-value utilization of lignin resources. However, the traditional rapid pyrolysis technology of lignin has uncontrollable chemical bond breaking, and one-sided pursuit of bio-oil yield. At the same time, the composition of lignin pyrolysis oil is complex, which greatly increases the cost of subsequent separation and purification, and also limits lignin production. Commercial development of preparation chemicals. Therefore, increasing the content of some specific high value-added chemicals (aromatic compounds) in bio-oil to achieve directional regulation of lignin pyrolysis process ha...

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
IPC IPC(8): C10G1/00C10B53/00B01D45/16
CPCB01D45/16C10B53/00C10G1/00C10G2300/70
Inventor 李志合王绍庆易维明蔡红珍付鹏李永军柏雪源李宁
Owner SHANDONG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap