Coal pyrolysis method for increasing oil yield by introducing fusel

A coal pyrolysis and fusel alcohol technology, which is applied in the petroleum industry, direct heating carbonization, coking oven, etc., can solve the problems of secondary cracking reaction and free radical polymerization reaction, difficult to meet market demand, and reduction of tar yield, etc., to achieve Low cost, easy operation and control, and the effect of reducing residence time

Inactive Publication Date: 2012-10-24
DALIAN UNIV OF TECH
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the structural characteristics and chemical properties of coal itself, the tar yield of the traditional pyrolysis process is low, and it is difficult to meet the huge market demand
[0004] In the existing coal low-temperature pyrolysis process, after the coal is heated to 480-650°C, the coal is pyrolyzed in the react

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
  • Coal pyrolysis method for increasing oil yield by introducing fusel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 Shown, a kind of coal pyrolysis method that feeds fusel alcohol to improve oil yield may further comprise the steps:

[0024] (1) Fusel alcohol uses the waste liquid of fusel alcohol produced in the process of producing methanol from syngas. Its main components are methanol, ethanol, propanol and amyl alcohol, etc. Fusel alcohol 2 is pumped and sprayed into preheater 3 at a temperature of 240-350 Preheating at ℃ is the fusel alcohol vapor for standby; the carrier gas is preheated to 240-350 ℃ in the preheater 3;

[0025] (2) The mixed gas of fusel alcohol vapor and carrier gas enters the coal pyrolysis reactor 6, and the coal 5 reacts with the mixed gas of 4 fusel alcohol carrier gas in the pyrolysis reactor 6, and a pyrolysis reaction occurs in the reactor at a reaction temperature of 450 ~650℃; Reaction time 10~30min;

[0026] (3) The raw coal gas produced by pyrolysis is exported from the middle and lower part of the pyrolysis reactor, and enters t...

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 belongs to the technical field of chemical engineering. A Coal pyrolysis method for increasing oil yield by introducing fusel comprises the following steps: (1) injecting the fusel through pumping into a preheater and preheating the fusel into steam; (2) introducing the fusel steam or fusel steam mixed with a carrier gas into a coal pyrolysis reactor, and carrying out a coal pyrolysis reaction on the fusel and coal at a reaction temperature of 450-650 DEG C for 10-30min; (3) purifying and condensing a reaction product of raw coke oven gas, recovering tar, and sending coal gas out; and (4) discharging a product semi coke through bottom of a moving-bed reactor. According to the invention, fusel is introduced into a low-temperature coal pyrolysis reaction system for the first time; pyrolysis products of the fusel in the reactor react with debris free radicals generated by coal pyrolysis to generate a free radical stable product, so as to improve oil yield of the coal pyrolysis; meanwhile, due to existence of effects like hydrogenation in the coal pyrolysis process, portion of the oil product is converted into a light fraction, and utilization of fusel is realized.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a coal pyrolysis method for increasing oil yield. Background technique [0002] my country is the world's largest coal producer and consumer. With the tightening of national energy, especially oil resources, and the continuous growth of energy demand, the position of the coal industry in my country's economic development has become increasingly prominent. The polygeneration utilization of coal is the future direction of development, and the clean development and utilization of coal is bound to be a concern of the world. From the analysis of the chemical structure and composition of coal, it is the direction of coal energy utilization to form a new integrated process of high efficiency, cleanliness, and rational utilization of resources through the hierarchical transformation of coal. [0003] In the comprehensive utilization of coal, coal low-temperature py...

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): C10B49/06
Inventor 张秋民何德民关珺张淋
Owner DALIAN 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