CN106479548A - Coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method - Google Patents
Coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method Download PDFInfo
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- CN106479548A CN106479548A CN201510538708.7A CN201510538708A CN106479548A CN 106479548 A CN106479548 A CN 106479548A CN 201510538708 A CN201510538708 A CN 201510538708A CN 106479548 A CN106479548 A CN 106479548A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
A kind of coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method, it is characterized in that providing one kind that raw coal is carried out purifying process obtains Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas, and comprehensively utilize the environment-protecting clean method of Filter Tuber For Clean Coal End gas production fine chemical product：By raw coal by purifying bituminous coal, anthracite and the brown coal processing and including various qualities, carry out purifying process and brown coal upgrading acquisition Filter Tuber For Clean Coal or semicoke（Semi-coke）Etc. process；The Filter Tuber For Clean Coal obtaining is widely used in the aspects such as combustion power generation, heating, daily life, realizes clean manufacturing and cleaning discharge；Coal tar is used for deep processing and obtains fine chemical product and raw material；Filter Tuber For Clean Coal tail gas produces the fine chemical product of high adnexa value by recycling treatment；This method is realized coal base high efficiency of energy and is cleaned the comprehensive utilization that becomes more meticulous, and thoroughly rewrites coal base energy industry general layout, solves the sharp contradiction of development and environmental protection well.
Description
Technical field
One kind is related to coal base high efficiency of energy cleaning and becomes more meticulous using environment-protecting clean method, it is characterized in that providing one kind that raw coal is carried out purifying process obtains Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas, and comprehensively utilize the environment-protecting clean method of Filter Tuber For Clean Coal End gas production fine chemical product, fully realize the comprehensive utilization that becomes more meticulous of the coal base energy, belong to the environment friendly clean producing method that high efficiency of energy cleans the comprehensive utilization that becomes more meticulous.
Background technology
China's energy resources situation feature is：Rich coal, oil starvation, few gas.China's energy industry be unable to do without the utilization of coal base energy resources.The coal base energy is non-clean energy, the especially low-quality coal base energy of the coal base energy（Brown coal etc.）Conventional direct using under not only utilization ratio is not high and brings great harm to natural environment.In recent years, with the extensive utilization of China's economic development and the coal base energy, cause natural environment drastically to deteriorate, define the sharp contradiction of economic development and environment protection.The common especially low-quality raw coal of raw coal is being directly used in the aspects such as combustion power generation, heating, daily life, and noxious pollutant discharge capacity has reached the limit, has caused the frequent generation of the extensive haze of China.Therefore, the coal base energy extensive using the reduction discharge amount of pollution that must take effective measures, reach the effect realizing clean utilization, the technical bottleneck of effectively solving economic development and environment protection contradiction.
High-efficiency cleaning in order to solve the coal base energy utilizes, industry personage and national correlation department take series of measures, wherein in terms of including the utilization of the coal base energy such as coal gas, coal liquifaction, olefin hydrocarbon making by coal, coal-ethylene glycol, coal synthesis ammonia and methanol, put into huge tackling of key scientific and technical problems and put into.But these industries still have that universal coal base energy utilization rate is low and environmental pollution is serious.In addition, also having common raw coal and low-quality raw coal（As brown coal）First carry out purifying（Including means such as brown coal upgradings）Process and obtain a kind of Filter Tuber For Clean Coal（Cleaning fire coal or semicoke）, recycle this Filter Tuber For Clean Coal to substitute the clean utilization scheme being directly extensively used in the aspects such as combustion power generation, heating, daily life of common raw coal and low-quality raw coal, common raw coal and low-quality raw coal can produce substantial amounts of pollutant emission during purifying process obtains Filter Tuber For Clean Coal, due to being to focus on, centralized collection therefore can be facilitated.While obtaining Filter Tuber For Clean Coal, it is possible to obtain coal tar and purifying tail gas；Coal tar can be comprehensively utilized by tar deep processing, but Filter Tuber For Clean Coal tail gas is nearly all to be processed using burning at present, there is no other preferably Utilization plan, in Filter Tuber For Clean Coal tail gas burning process, waste gas discharge and raw coal and the direct burning of low-quality raw coal are used without difference substantially, also can produce substantial amounts of pollutant emission.Therefore, existing common raw coal and the purifying of low-quality raw coal are processed into for the maneuver of " pollution transportation ", inherently do not solve environmental issue, last a very long time greater area of more lasting more fearful haze will.
From this, the comprehensive utilization of the Filter Tuber For Clean Coal tail gas producing during solution raw coal is purifying is the key technology bottleneck of Filter Tuber For Clean Coal scheme.Therefore, it is proposed that raw coal and low-quality raw coal, in the purifying cleaning solution processing and obtaining Filter Tuber For Clean Coal, are really realized coal base high efficiency of energy clean utilization, are the task of top priority of China's economic development, environmental conservation and energy strategy problem.
Filter Tuber For Clean Coal tail gas main component is hydrogen, methane, CO, CmHn, CO2、N2、O2、H2O etc..These compositions containing in Filter Tuber For Clean Coal tail gas are all the valable starting materials of synthesis fine chemicals, it is proposed that to Filter Tuber For Clean Coal tail gas development of comprehensive utilization fine chemistry industry, realizing resource high-efficiency and clean the comprehensive utilization that becomes more meticulous, developing Filter Tuber For Clean Coal tail gas comprehensive utilization frontier.
Content of the invention
For coal base high efficiency of energy clean utilization field be actually needed and raw coal purifying during the feature of Filter Tuber For Clean Coal tail gas that produces and application feature, it is proposed that a kind of coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method, raw coal is carried out purifying process and obtains Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas, and comprehensively utilize the environment-protecting clean method of Filter Tuber For Clean Coal End gas production fine chemical product.
It is an object of the invention to provide a kind of coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method, it is characterized in that providing one kind that raw coal is carried out purifying process obtains Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas, and comprehensively utilize the environment-protecting clean method of Filter Tuber For Clean Coal End gas production fine chemical product：Raw coal is widely used in the aspects such as combustion power generation, heating, daily life by the purifying Filter Tuber For Clean Coal obtaining that processes, this Filter Tuber For Clean Coal quality is relatively pure, contain sulfur, organic nitrogen, hydro carbons, aromatics etc. and other impurity component less, not only burn fully in combustion but also make combustion tail gas contain sulfur, nitre and other noxious pollutant less, dramatically reduce the purification difficulty of combustion tail gas, realize the aspect clean manufacturing such as Filter Tuber For Clean Coal combustion power generation, heating, daily life and cleaning discharge；Coal tar is used for deep processing and obtains fine chemical product and raw material；Filter Tuber For Clean Coal tail gas passes through desulfurization, denitration, the means such as purified treatment and pressure-variable adsorption such as dehydration separate and obtain methane gas, hydrogen, carbon monoxide and tail gas, separate the methane gas replacement conventional gas obtaining to be used for producing natural gas fine chemistry industry series of products, separate the hydrogen obtaining to be used for hydrogenation and obtain, by synthetic ammonia installation, the production that ammonia is applied to series chemical product, carbon monoxide and tail gas are used for synthesizing methanol and can aoxidize the production obtaining formaldehyde for fine chemistry industry series derivates further, Filter Tuber For Clean Coal tail gas become more meticulous using after tail gas with tail gas boiler burn obtain heat energy.
The present invention provides a kind of coal base high efficiency of energy cleaning to become more meticulous using environment-protecting clean method, and its specific implementation step is as follows：
The first step：Raw coal is passed through purifying process and obtains Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas.
This Filter Tuber For Clean Coal quality is relatively pure, contain sulfur, organic nitrogen, hydro carbons, aromatics etc. and other impurity component less, not only burn fully in combustion but also make combustion tail gas contain sulfur, nitre and other noxious pollutant less, dramatically reduce the purification difficulty of combustion tail gas, Filter Tuber For Clean Coal is extensively used in the aspects such as combustion power generation, heating, daily life and realizes real clean manufacturing and cleaning discharge.
By-product coal tar is used for tar polish, obtains fine chemical product and raw material.
Filter Tuber For Clean Coal tail gas passes through the purified treatment such as desulphurization and denitration, dehydration and obtains the Filter Tuber For Clean Coal tail gas purifying.
Indication raw coal includes bituminous coal, anthracite and the brown coal of various qualities；The purifying process of indication includes all raw coal and carries out purifying process and brown coal upgrading acquisition Filter Tuber For Clean Coal or semicoke（Semi-coke）Etc. process.
Second step：The Filter Tuber For Clean Coal tail gas purifying passes through pressure-swing absorption apparatus and other separation equipment respectively obtains hydrogen, carbon monoxide, methane gas and tail gas and produces for fine chemical product.
Separate the methane gas replacement conventional gas obtaining to be used for producing natural gas fine chemistry industry series of products, separate the hydrogen obtaining to be used for hydrogenation and obtain, by synthetic ammonia installation, the production that ammonia is applied to series chemical product, carbon monoxide and tail gas are used for synthesizing methanol and can aoxidize the production obtaining formaldehyde for fine chemistry industry series derivates further；The high-efficiency cleaning achieving Filter Tuber For Clean Coal tail gas becomes more meticulous utilization.
3rd step：Filter Tuber For Clean Coal tail gas become more meticulous using after tail gas with tail gas boiler burn.
Although the amount of remaining harmful substance is very limited in tail gas system, in order to fully realize clean manufacturing, all exhaust collections are concentrated feeding tail gas boiler to be burned by we, again incineration tail gas are carried out finally discharging after purified treatment, realize real coal base high efficiency of energy and clean the utilization that becomes more meticulous.
By as above three steps, the coal base high efficiency of energy cleaning completing present invention offer becomes more meticulous using environment-protecting clean method.Its step process is：Raw coal is carried out purifying process and obtains Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas, Filter Tuber For Clean Coal is widely used in the aspects such as combustion power generation, heating, daily life, this Filter Tuber For Clean Coal quality is relatively pure, dramatically reduce the purification difficulty of combustion tail gas, tail gas pass through udst separation can direct qualified discharge, realize the aspect clean manufacturing such as Filter Tuber For Clean Coal combustion power generation, heating, daily life and discharge with cleaning；Coal tar is used for deep processing and obtains fine chemical product and raw material；Filter Tuber For Clean Coal tail gas passes through desulfurization, denitration, the means such as purified treatment and pressure-variable adsorption such as dehydration separate and obtain methane gas, hydrogen, carbon monoxide and tail gas, separate the methane gas replacement conventional gas obtaining to be used for producing natural gas fine chemistry industry series of products, separate the hydrogen obtaining to be used for hydrogenation and obtain, by synthetic ammonia installation, the production that ammonia is applied to series chemical product, carbon monoxide and tail gas are used for synthesizing methanol and can aoxidize the production obtaining formaldehyde for fine chemistry industry series derivates further, Filter Tuber For Clean Coal tail gas become more meticulous using after tail gas with tail gas boiler burn obtain heat energy.
The process that the present invention provides, has following feature：
1st, the present invention provides the effective way of the comprehensive utilization that becomes more meticulous for coal base high efficiency of energy clean utilization, is that the coal base energy opens and can really realize clean utilization industrial chain；Very good economic benefit and social benefit can be obtained.
2nd, the present invention provides a kind of new raw material approach for natural gas fine chemistry industry.The potential production of Filter Tuber For Clean Coal tail gas is very huge, and therefore, the present invention proposes the extremely abundant raw material guarantee of the offer for natural gas fine chemistry industry.
3rd, the methane gas being obtained using the purification of Filter Tuber For Clean Coal tail gas separation, are preferable natural gas fine chemical materials, have more potential advantages than common natural gas；Filter Tuber For Clean Coal tail gas is after cleaning and desulfurization, again the separation that the methane gas obtaining also furthermore achieved that element sulphur is separated by pressure-variable adsorption, do not need to carry out again sweetening process as common natural gas, so, effectively improve utilization rate of equipment and installations, improve product yield, reducing energy consumption, save production cost, the practicality of the Technology of present invention offer has been be provided.
4th, the present invention provides is process, it is possible to achieve the high-efficiency cleaning of the real coal base energy utilizes.Coal base energy overall utilization can bring up to 90% or more, can realize real zero-emission clean utilization simultaneously；Realize becoming more meticulous utilization due to Filter Tuber For Clean Coal tail gas being substituted natural gas producing fine chemical product, it is possible to obtain extraordinary economic benefit, the value of the coal base energy is greatly improved, is that China's energy strategy has extremely important meaning.
Brief description
Figure of description be the present invention relates to the coal base high efficiency of energy schematic flow sheet that becomes more meticulous using environment-protecting clean method of cleaning.
Specific embodiment
Carry out illustrating in greater detail the present invention below by embodiment, but the scope of the present invention should not be limited by the examples（Component ratio refers both to volume basis ratio）.
Embodiment 1：Just calorific value is the common raw coal of 5500 kilocalories by purifying process acquisition Filter Tuber For Clean Coal（Semicoke）With by-product coal tar and Filter Tuber For Clean Coal tail gas.
Filter Tuber For Clean Coal is used for common steam boiler combustion and produces steam.Under same operational circumstances, Filter Tuber For Clean Coal efficiency of combustion reaches 99.8%, relatively conventional coal-fired raising 5%；SO in discharge gas after the tails dedusting that burning produces2Average content is 1.2mg/ mark side, total nitrogen oxide average content is 5.8mg/ mark side, other gas harmful impurity trace.
Coal tar is sold to tar deep processing company after collecting.
Filter Tuber For Clean Coal tail gas passes through the purified treatment such as desulphurization and denitration, dehydration, reclaims sulfur, nitre obtains thiamine and ammonium nitrate, obtains condensed water, recycle after dehydration condensation.
Filter Tuber For Clean Coal tail gas after purification：Hydrogen 52.6%, methane 25.3%, carbon monoxide 5.4%, carbon dioxide 1.8%, oxygen 0.8%, nitrogen 4.8%, water 2.2%, other 7.1%, carry out separating by pressure-variable adsorption and other auxiliary separating devices, respectively obtain hydrogen, carbon monoxide, methane gas and tail gas；Hydrogen is used for hydrogenation, carbon monoxide and tail gas and is used for synthesizing methanol, methane gas replacement natural gas for fine chemistry industry production.
Embodiment 2：Calorific value is passed through purifying process and obtains Filter Tuber For Clean Coal (peat) and by-product coal tar and Filter Tuber For Clean Coal tail gas for the coal slime of 2500 kilocalories about of per kilogram.
Filter Tuber For Clean Coal is used for common steam boiler combustion and produces steam.Under same operational circumstances, Filter Tuber For Clean Coal efficiency of combustion reaches 99.5%, and relatively conventional fire coal improves 4.4%；SO in discharge gas after the tails dedusting that burning produces2Average content is 2.2mg/ mark side, total nitrogen oxide average content is 6.9mg/ mark side, other gas harmful impurity trace.
Coal tar is sold to tar deep processing company after collecting.
Filter Tuber For Clean Coal tail gas passes through the purified treatment such as desulphurization and denitration, dehydration, reclaims sulfur, nitre obtains thiamine and ammonium nitrate, obtains condensed water, recycle after dehydration condensation.
Filter Tuber For Clean Coal tail gas after purification：Hydrogen 49.8%, methane 28.4%, carbon monoxide 5.4%, carbon dioxide 1.7%, oxygen 0.7%, nitrogen 6.9%, water 1.9%, other 5.2%, carry out separating by pressure-variable adsorption and other auxiliary separating devices, respectively obtain hydrogen, carbon monoxide, methane gas and tail gas；Hydrogen substitutes, for synthesizing methanol, methane gas, the production that natural gas is used for fine chemical product for synthesizing ammonia, carbon monoxide and tail gas.
Embodiment 3：Just calorific value is the brown coal of 3200 kilocalories about of per kilogram by purifying process acquisition Filter Tuber For Clean Coal (semi-coke) and by-product coal tar and Filter Tuber For Clean Coal tail gas.
Filter Tuber For Clean Coal is used for common steam boiler combustion and produces steam.In the case of same operating environment, Filter Tuber For Clean Coal efficiency of combustion reaches 99.8%, and relatively conventional fire coal improves more than 5%；SO in discharge gas after the tails dedusting that burning produces2Average content is 2.6mg/ mark side, total nitrogen oxide average content is 6.7mg/ mark side, other gas harmful impurity trace.
Coal tar is sold to tar deep processing company after collecting.
Filter Tuber For Clean Coal tail gas passes through the purified treatment such as desulphurization and denitration, dehydration, reclaims sulfur, nitre obtains thiamine and ammonium nitrate, obtains condensed water, recycle after dehydration condensation.
Filter Tuber For Clean Coal tail gas after purification：Hydrogen 48.9%, methane 21.8%, carbon monoxide 5.9%, carbon dioxide 1.5%, oxygen 0.4%, nitrogen 14.3%, water 1.1%, other 6.1%, carry out separating by pressure-variable adsorption and other auxiliary separating devices, respectively obtain hydrogen, carbon monoxide, methane gas and tail gas；Hydrogen is used for synthesizing ammonia, carbon monoxide and tail gas and is used for substituting conventional gas for synthesizing methanol, methane gas and produces fine chemical product.
Concentrate after all exhaust collections to be burned with tail gas boiler and obtain heat energy.
Claims (2)
1. a kind of coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method, it is characterized in that providing one kind that raw coal is carried out purifying process obtains Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas, and comprehensively utilize the environment-protecting clean method of Filter Tuber For Clean Coal End gas production fine chemical product：Raw coal is widely used in the aspects such as combustion power generation, heating, daily life by the purifying Filter Tuber For Clean Coal obtaining that processes, this Filter Tuber For Clean Coal quality is relatively pure, contain sulfur, organic nitrogen, hydro carbons, aromatics etc. and other impurity component less, not only burn fully in combustion but also make combustion tail gas contain sulfur, nitre and other noxious pollutant less, dramatically reduce the purification difficulty of combustion tail gas, realize the aspect clean manufacturing such as Filter Tuber For Clean Coal combustion power generation, heating, daily life and cleaning discharge；Coal tar is used for deep processing and obtains fine chemical product and raw material；Filter Tuber For Clean Coal tail gas passes through desulfurization, denitration, the means such as purified treatment and pressure-variable adsorption such as dehydration separate and obtain methane gas, hydrogen, carbon monoxide and tail gas, separate the methane gas replacement conventional gas obtaining to be used for producing natural gas fine chemistry industry series of products, separate the hydrogen obtaining to be used for hydrogenation and obtain, by synthetic ammonia installation, the production that ammonia is applied to series chemical product, carbon monoxide and tail gas are used for synthesizing methanol and can aoxidize the production obtaining formaldehyde for fine chemistry industry series derivates further, Filter Tuber For Clean Coal tail gas become more meticulous using after tail gas with tail gas boiler burn obtain heat energy.
2. described in claim 1, raw coal is carried out purifying process and obtain Filter Tuber For Clean Coal and by-product coal tar and Filter Tuber For Clean Coal tail gas, it is characterized in that：Indication raw coal includes bituminous coal, anthracite and the brown coal of various qualities；The purifying process of indication includes all raw coal and carries out purifying process and brown coal upgrading acquisition Filter Tuber For Clean Coal or semicoke（Semi-coke）Etc. process.
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Application publication date: 20170308 |