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

Device for clean utilization and mercury recovery of high-mercury coal and method

A coal and clean technology, applied in the field of coal chemical industry, can solve problems such as mercury pollution, achieve the effects of reducing mercury pollution, increasing efficiency, and reducing toxicity

Pending Publication Date: 2019-09-10
陕西聚能新创煤化科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem of mercury pollution existing in the reuse of high-mercury coal, the purpose of the present invention is to provide a device and method for clean utilization of high-mercury coal and recovery of mercury metal, to provide clean utilization and recovery of high-mercury coal A method of mercury metal, to obtain the recovery of mercury metal during the utilization process of high mercury content coal, reduce the environmental pollution during the utilization process of high mercury content coal, and solve the problem of clean utilization of high mercury content coal

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 for clean utilization and mercury recovery of high-mercury coal and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 60 tons of raw coal with a mercury content of 45mg / kg, the gas output after pulverized coal gasification: 3.5Mpa, 215°C, 233068NM 3 / h water gas, water 121322kg / h, mercury 2.7kg / h.

[0036] Coal gas (01) is cooled down to 40°C by heat exchanger E, and enters the gas-liquid separation tank V1 for separation, and the separated liquid is 121169.38kg / h, of which liquid water is 121166.72kg / h, and liquid mercury is 2.65816kg / h; gas-liquid separation tank V1 Top output process gas 81836.26NM 3 / h, which contains 0.041775kg / h of mercury.

[0037] The liquid mercury is separated and settled by the gas-liquid separation tank V1, and deposited and recovered by the metal collection and separation tank V2. It can separate and recover 2.658kg / h of raw coal, and the mercury recovery rate is 98.45%.

[0038] During the process, mercury metal can be separated and recovered, and 21265.26 kg of mercury metal can be recovered in 8000 hours of annual production, which increases benefits ...

Embodiment 2

[0040] 60 tons of raw coal with a mercury content of 45mg / Kg, the gas output after coal-water slurry gasification: 6.0Mpa, 230°C, 173483NM3 / h water gas, of which water 73430.28kg / h, mercury 2.7kg / h.

[0041]Coal gas (01) is cooled down to 40°C by heat exchanger E, and enters the gas-liquid separation tank V1 for separation, and the separated liquid is 74166kg / h, of which liquid water is 73335kg / h, and liquid mercury is 2.67688kg / h; the top output of the gas-liquid separation tank V1 Process gas 81784.9NM 3 / h, which contains 0.02306kg / h of mercury.

[0042] The liquid mercury is separated and settled by the gas-liquid separation tank V1, and deposited and recovered by the metal collection and separation tank V2. It can separate and recover 2.658kg / h of raw coal, and the mercury recovery rate is 99.14%.

[0043] During the process, mercury metal can be separated and recycled, and 21,415 kg of mercury metal can be recovered in 8,000 hours of annual production, which increases b...

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 for clean utilization and mercury recovery of high-mercury coal and a method. The device comprises a heat exchanger for coal gas cooling, a gas-liquid separating tank and a liquid storage tank, wherein an inlet end of the heat exchanger is connected with a coal gas pipe, an outlet end of the heat exchanger is connected with an inlet of the gas-liquid separating tankthrough a pipe, a gas outlet is formed in the top of the gas-liquid separating tank, a first liquid outlet and a second liquid outlet are formed in the bottom of the gas-liquid separating tank, and the first liquid outlet is connected with a downstream work section through a channel; the second liquid outlet is connected with an inlet of the liquid storage tank through a pipe; and a liquid mercury outlet is formed in the bottom of the liquid storage tank and is connected with a liquid mercury collecting device through a pipe. According to the device and the method, the technical problem thatmercury pollution is present during reutilization of the high-mercury coal is solved; and the device and the method, provided by the invention, can be used for lowering environmental pollution duringutilization of the high-mercury coal and solving problems during clean utilization of the high-mercury coal.

Description

technical field [0001] The invention belongs to the field of coal chemical industry, and in particular relates to the clean utilization of high-mercury coal and the process of effectively recovering metallic mercury. Background technique [0002] Coal, due to its geological origin and mineral environment, contains a certain amount of mercury, and the content varies due to regional and mineralization differences. The status quo of rich coal, little oil and lack of gas in my country determines the status of coal in the energy field. Although the use of clean energy has been continuously promoted for many years, coal still occupies the first position in my country's energy consumption. [0003] The mercury content of coal in my country is mostly 0.1-1.5mg / Kg, and the mercury content of coal in Guizhou is relatively high, up to 1002mg / Kg. Mercury content index of commercial coal in my country: <0.6mg / Kg. Mercury and its compounds are recognized as one of the substances harm...

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): C10K1/04C10K1/00B01D53/00B01D53/26
CPCC10K1/04C10K1/007C10K1/001B01D53/002B01D53/265B01D2257/602B01D2257/80
Inventor 刘建国刘杰崔静思
Owner 陕西聚能新创煤化科技有限公司
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com