Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coarse stalk fuel gas purification process and purification device thereof

A technology of purification process and purification device, which is applied in the direction of combustible gas purification, combustible gas purification/transformation, gas dust removal, etc., which can solve the problems of non-compliance with energy saving requirements, increase of system failure rate, increase in the number of equipment, etc., and achieve long-term operation. , Excellent purification effect, and the effect of improving the utilization rate

Inactive Publication Date: 2018-06-29
WUHAN JINZHONG PETROCHEM ENG
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The high-temperature straw gas coming out of the settling chamber of the carbonization furnace is directly cooled and dust-removed through the circulating washing tower, without considering the waste heat utilization measures, which does not meet the energy-saving requirements;
[0005] 2. In order to ensure the efficiency of dust removal and decondensation, multi-stage circulating scrubbers and multi-stage cooling measures are usually installed. The process is complicated and the number of equipment is increased, which leads to an increase in the system failure rate and is not conducive to stable operation;
[0006] 3. After the coarse straw gas is dedusted and cooled by the circulating washing system, the carbon dust and condensable components contained in it are transferred to the washing liquid. During the cooling and sedimentation process of the washing liquid, the carbon dust absorbs wood tar and other substances to form asphalt-like Viscous substances, which seriously pollute the washing liquid and easily block pipelines and equipment, resulting in many unstable factors;
[0007] 4. Due to the transfer of wood tar, wood vinegar, etc. into the washing liquid, the circulating washing liquid has a strong pungent smell. The current plan does not do airtight treatment, and the on-site smell is relatively large, which does not meet the requirements of industrial hygiene;
Based on these two reasons, the current coarse straw gas purification system will produce a large amount of sewage, which does not meet the environmental protection requirements;
[0009] 6. Due to the high temperature and low pressure of the coarse straw gas, in order to ensure its smooth passage through the washing and purification system, an induced draft fan is usually added at the end of the system, causing the entire purification system to be in a slightly negative pressure state, posing a safety hazard

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
  • Coarse stalk fuel gas purification process and purification device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail:

[0030] A kind of coarse straw gas purification process designed by the present invention comprises the following steps:

[0031] 1) Pre-treat the coarse straw gas to remove the large particle dust contained in it at one time;

[0032] 2), the gas treated in step 1) is passed into the lower part of the horizontal tube separator 7 for washing and dust removal, and the carbon dust and wood tar in the coarse straw gas are removed, and the water removal treatment is carried out, and the carbon dust and wood tar are collected In the sediment tank 6 at the lower end of the horizontal tube decondenser 7, the wood tar is separated and recovered, and the temperature of the lower section of the horizontal tube decondenser 7 is controlled at 75°C to 95°C;

[0033] 3), the gas treated in step 2) is passed into the upper section of the horizontal tube decond...

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 coarse stalk fuel gas purification process, which comprises the following steps of (1) pretreating the coarse stalk fuel gas; (2) introducing the gas treated in the step (1)into a lower section of a transverse pipe sub condenser to be washed for dust removal; removing carbon particle dust, wood tar and water in the coarse stalk fuel gas; (3) introducing the gas treated in the step (2) into an upper section of the transverse pipe sub condenser to be condensed; removing wood vinegar and rest water; (4) performing further condensation removal on the gas treated in the step (3) through a filter to obtain purified stalk fuel gas. The invention also provides a purification device of the process. The gas effective purification of coarse stalk fuel can be realized; byproducts such as the carbon powder the wood tar and the wood vinegar can be obtained; the requirements of energy saving, environment protection and safety can be sufficiently met.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a crude straw gas purification process and a purification device thereof. Background technique [0002] Straw (granule) low-temperature-slow carbonization technology can carbonize straw (granule) while retaining the organic content of straw to the maximum extent. The straw carbon produced by this technology can be used as a fertilizer substrate to realize efficient and harmless return of straw to the field. A new way of fertilizer utilization of straw. [0003] The amount of coarse straw gas produced during the carbonization of straw (particles) accounts for about 70% of the total carbonization feed. The rational use of this part of the gas is the key to the carbonization of straw (particles) meeting the requirements of low carbon, energy saving and environmental protection for biomass resource utilization. . At present, most carbonization processes refer to th...

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): C10K1/04C10K1/02
CPCC10K1/04C10K1/02C10K1/024
Inventor 徐清武李廷均郭奇志易金华
Owner WUHAN JINZHONG PETROCHEM ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products