Combined process for co-pyrolysis of coal and petroleum refining by-product

A technology of petroleum refining and combined process, which is applied in the petroleum industry, coke ovens, special forms of dry distillation, etc., can solve the problems of low tar yield and long pyrolysis time, and achieve low economic benefits, low prices, and wide sources Effect

Active Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because coal is a microwave weak absorbing subs...

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
  • Combined process for co-pyrolysis of coal and petroleum refining by-product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]Jurassic coal (lignite) in a certain area in northern Shaanxi was selected, and its industrial analysis is shown in Table 1. The by-product of petroleum refining is RFCC oil slurry from a refinery. The physicochemical properties of RFCC oil slurry are shown in Table 2. According to the mass ratio of 3:7, the raw coal of a certain particle size (5-50mm) and the catalytic cracking oil slurry are fully stirred and mixed in the preheating drying zone, and then preheated. The temperature of the mixture of the raw coal and the catalytic cracking oil slurry after preheating is 150°C. The mixture of raw coal and catalytic cracking oil slurry is continuously fed into the microwave pyrolysis reactor at a rate of 100 g / min. The microwave frequency is 2450MHz, the pyrolysis temperature is stable at 650°C, the carrier gas is nitrogen, and the carrier gas flow rate is 0.2L / min. The semi-coke generated by the pyrolysis reaction is collected after being cooled to room temperature, and...

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 discloses a combined process for co-pyrolysis of coal and petroleum refining by-products. Feed coal is mixed with petroleum refining by-products a preheating drying zone; the preheated mixture of coal and petroleum refining by-products is sent into a microwave pyrolysis reactor to generate the semi coke and pyrolysis gas; and the pyrolysis enters into a condenser system for separation into tar and coal gas. The combined process can realize simultaneous pyrolysis of coal and petroleum refining by-products in the same temperature range to generate synergistic effect, so as to increase the yield of coal tar and improve the quality of coal tar.

Description

technical field [0001] The invention belongs to the technical field of coal pyrolysis, and relates to a combined process for co-pyrolyzing coal and by-products of petroleum refining, in particular to a combined process for co-pyrolyzing low-modified coal and by-products of petroleum refining by using microwaves. Background technique [0002] my country is a country rich in coal, short of oil and low in natural gas. Coal accounts for about 75% of my country's primary energy, of which low metamorphic coal resources (lignite, long-flame coal, gas coal, non-sticky coal, weak sticky coal) Coal, etc.) account for more than 60% of coal resources. Because low-metamorphic coal has no caking or very poor caking, it cannot be used to produce coke in conventional coke ovens, and is generally only used as steam coal or partly used to produce low calorific value producer gas. Low-metamorphic coal contains a large amount of hydrogen-rich components, and the direct combustion of coal wastes...

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): C10B53/00C10B57/04C10B57/00
Inventor 张庆军翁延博蒋立敬张忠清彭绍忠
Owner CHINA PETROLEUM & CHEM CORP
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