CN102977953B - Anthracite coal water slurry for coal gasification and preparation method thereof - Google Patents
Anthracite coal water slurry for coal gasification and preparation method thereof Download PDFInfo
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- CN102977953B CN102977953B CN201210520425.6A CN201210520425A CN102977953B CN 102977953 B CN102977953 B CN 102977953B CN 201210520425 A CN201210520425 A CN 201210520425A CN 102977953 B CN102977953 B CN 102977953B
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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
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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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
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Abstract
The invention discloses anthracite coal water slurry for coal gasification and a preparation method thereof. The anthracite coal water slurry is prepared from the following raw materials in parts by mass: 52-60 parts of anthracite coal, 2-10 parts of coal gasification slag, 3-8 parts of limestone, 32-40 parts of water and 1-2 parts of coal water slurry admixture. According to the invention, the anthracite coal is used as the raw material, and part of ash slag generated in the coal gasification process is added to replace part of limestone so as to reduce the ash fusion point of the coal water slurry, thus recycling the coal gasification furnace slag, reducing the problem on carbon dioxide emission caused by limestone decomposition and further utilizing carbon which is not effectively utilized in the coal gasification furnace slag; and meanwhile, the corrosion to the refractory material of a coal gasification furnace caused by the alkalinity increase of the gasification slag after limestone addition can be reduced, thereby achieving the purposes of energy saving and consumption reduction.
Description
Technical field
The present invention relates to a kind of Anthracite coal water slurry for coal gasification and preparation method thereof, belong to coal water slurry and preparation method thereof technical field.
Background technology
Existing coal water slurry is by the bituminous coal of 60%-70%, the water of 30%-40% and the sulfonated lignin of additional 1%-2% or naphthalene system coal water slurry admixture and make, it is a kind of fuel slurry, can pumping as oil, atomization, storage and stable burning, its calorific value is equivalent to the half of oil fuel, oil fuel can be replaced to be used for boiler, power station, industrial furnace and kiln, for replacing coal to use, having that combustion benefits is high, load adjustment is convenient, reducing environmental pollution, improving working conditions and the advantage such as saving coal.
Gasification is the important component part of Coal Chemical Industry and clean coal technology.The coal conversion of cheapness is become synthetic gas or coal gas by it, can be used for production chemical product, as synthetic ammonia, methyl alcohol, dme etc., also can be used for the fields such as the electrical integrated combined cycle generation of coal (IGCC) and the Poly-generation based on gasification.At present, domestic gasification coal water slurry is be prepared by raw material with bituminous coal substantially, and its ash fusion point is lower, does not generally add or only add the requirement that the solubility promoters such as the Wingdale of a small amount of (3-5%) can meet gasification; But due to the ununiformity of China's distribution of coal sorts, a lot of local anthracite resource not possessing preparation coal water slurry.And when preparing gasification coal water slurry with hard coal, due to anthracitic ash fusion point higher (generally up to 1500 DEG C), be reduced to coal slurry gasifier to make the coal water slurry ash fusion point prepared and require less than 1350 DEG C, the Wingdale that generally need add more than 20% is solubility promoter.Because Wingdale add-on is more, cause the increase of carbonic acid gas in synthetic gas and increase the erosion of slag to refractory materials, thus the running cost of vapourizing furnace is increased.
Carbon content simultaneously in existing slag of coal gasification reaches about 40%, directly abandons the larger waste of existence as waste.
Summary of the invention
The technical problem to be solved in the present invention is, there is provided a kind of and can reduce Wingdale usage quantity, reduce to coal gasifier refractory corrosion, can gasification coal water slurry effectively utilizing gasification slag and preparation method thereof further, can the deficiencies in the prior art be overcome.
Technical scheme of the present invention is: Anthracite coal water slurry for coal gasification, and it is made up of the raw material of following quality proportioning, hard coal 52-60 part, gasification slag 2-10 part, Wingdale 3-8 part, water 32-40 part, coal water slurry admixture 1-2 part.
Described gasification slag refers to the gasifier slag produced in hard coal coal water slurry coal gasification course.
Described coal water slurry admixture is sulfonated lignin and naphthalene system coal water slurry admixture.
The making method of Anthracite coal water slurry for coal gasification is prepared burden in proportion 52-60 parts, the hard coal of mass parts, gasification slag 2-10 parts, 3-8 parts, Wingdale, water 32---40 part, coal water slurry admixture 1-2 part, then joins levigately in ball mill namely to prepare ash fusion point lower than 1350 DEG C of hard coal coal water slurry to below 0.074mm.
Compared with prior art, the present invention take hard coal as raw material, part Wingdale is replaced to reduce the ash fusion point of coal water slurry by the lime-ash produced in the coal gasification course of adding portion, so namely, the recycling of slag of coal gasification can be realized, the Carbon emission problem that minimizing brings due to decomposition of limestone, also can enter the carbon that one utilizes utilization not yet in effect in slag of coal gasification, can reduce due to the erosion of basicity of slag increase to coal gasifier refractory materials of gasifying after interpolation Wingdale simultaneously, thus realize energy-saving and cost-reducing object.According to the requirement of coal slurry gasifier, the fusing point of the lime-ash of its discharge is all lower than 1350 DEG C (containing the low melting point such as montmorillonite, feldspar class mineral and a large amount of low temperature glass phases), therefore, in the preparation process of hard coal coal water slurry, add such lime-ash, the ash fusion point of hard coal coal water slurry can be effectively reduced.
Embodiment
Embodiment 1,53 parts, hard coal, gasification slag 8 parts and 2 parts, Wingdale, 37 parts, water, additional sulfonated lignin coal water slurry admixture 1.2 parts to be prepared burden in proportion, then join and levigately in ball mill namely prepare ash fusion point lower than 1320 DEG C of hard coal coal water slurry to below 0.074mm.
Embodiment 2,55 parts, hard coal, gasification slag 5 parts and 4 parts, Wingdale, 36 parts, water, additional sulfonated lignin coal water slurry admixture 1.5 parts to be prepared burden in proportion, then join and levigately in ball mill namely prepare ash fusion point lower than 1340 DEG C of hard coal coal water slurry to below 0.074mm.
Embodiment 3,58 parts, hard coal, gasification slag 5 parts and 4 parts, Wingdale, 33 parts, water, additional naphthalene system coal water slurry admixture 1.3 parts to be prepared burden in proportion, then join and levigately in ball mill namely prepare ash fusion point lower than 1350 DEG C of hard coal coal water slurry to below 0.074mm.
Embodiment 4,56 parts, hard coal, gasification slag 6 parts and 3 parts, Wingdale, 35 parts, water, additional naphthalene system coal water slurry admixture 1.1 parts to be prepared burden in proportion, then join and levigately in ball mill namely prepare ash fusion point lower than 1320 DEG C of hard coal coal water slurry to below 0.074mm.
Embodiment 5,54 parts, hard coal, gasification slag 8 parts and 2 parts, Wingdale, 36 parts, water, additional naphthalene system coal water slurry admixture 1 part to be prepared burden in proportion, then join and levigately in ball mill namely prepare ash fusion point lower than 1310 DEG C of hard coal coal water slurry to below 0.074mm.
Embodiment 6,48 parts, hard coal, gasification slag 10 parts and 5 parts, Wingdale, 37 parts, water, additional naphthalene system coal water slurry admixture 1.5 parts to be prepared burden in proportion, then join and levigately in ball mill namely prepare ash fusion point lower than 1290 DEG C of hard coal coal water slurry to below 0.074mm.
Claims (2)
1. an Anthracite coal water slurry for coal gasification, it is made up of the raw material of following quality proportioning, it is characterized in that: hard coal 52-60 part, gasification slag 2-10 part, Wingdale 3-8 part, water 32-40 part, coal water slurry admixture 1-2 part, described gasification slag refers to the gasifier slag produced in hard coal coal water slurry coal gasification course; Described coal water slurry admixture is sulfonated lignin or naphthalene system coal water slurry admixture.
2. the making method of Anthracite coal water slurry for coal gasification as claimed in claim 1, it is characterized in that: its method is prepared burden in proportion 52-60 parts, the hard coal of mass parts, gasification slag 2-10 parts, 3-8 parts, Wingdale, water 32---40 part, coal water slurry admixture 1-2 part, then join and levigately in ball mill namely prepare ash fusion point lower than 1350 DEG C of hard coal coal water slurry to below 0.074mm.
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| CN201210520425.6A CN102977953B (en) | 2012-12-07 | 2012-12-07 | Anthracite coal water slurry for coal gasification and preparation method thereof |
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| CN201210520425.6A CN102977953B (en) | 2012-12-07 | 2012-12-07 | Anthracite coal water slurry for coal gasification and preparation method thereof |
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| CN102977953B true CN102977953B (en) | 2015-01-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992821B (en) * | 2014-05-16 | 2017-01-11 | 新奥科技发展有限公司 | Coal gasification method |
| CN108587710A (en) * | 2018-04-18 | 2018-09-28 | 绍兴化工有限公司 | A kind of method for producing water coal slurry of coal dust fine slag reuse |
| CN109111966A (en) * | 2018-09-06 | 2019-01-01 | 鄂尔多斯应用技术学院 | A kind of Anthracite coal water slurry for coal gasification and preparation method thereof |
| CN115820313B (en) * | 2022-11-10 | 2024-06-14 | 宁波中金石化有限公司 | Preparation method of coal water slurry based on gasified slag |
Citations (7)
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| CN1073708A (en) * | 1991-12-26 | 1993-06-30 | 福建省化学工业科学技术研究所 | Be added with the lime-carbonated coal balls of industrial residue |
| CN1141346A (en) * | 1996-05-03 | 1997-01-29 | 宝山钢铁(集团)公司 | Method for prodn. of spongy iron by vertical furnace using coal gas |
| CN1340604A (en) * | 2000-08-25 | 2002-03-20 | 化学工业部西北化工研究院 | Process for preparing coke-water slurry to generate gas |
| CN101497831A (en) * | 2009-01-21 | 2009-08-05 | 江苏索普（集团）有限公司 | Alcohol waste liquor coal liquid, and preparation and use thereof |
| WO2011063971A1 (en) * | 2009-11-27 | 2011-06-03 | Choren Industries Gmbh | Device and method for generating a synthesis gas from processed biomass by entrained-flow gasification |
| CN102504895A (en) * | 2011-10-19 | 2012-06-20 | 新能工业股份有限公司 | Liquid coal slurry composition |
| CN102703146A (en) * | 2012-06-19 | 2012-10-03 | 贵州联和能源清洁燃料有限公司 | Low-sulfur low-ash biomass anthracite coal water slurry and preparation method thereof |
-
2012
- 2012-12-07 CN CN201210520425.6A patent/CN102977953B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073708A (en) * | 1991-12-26 | 1993-06-30 | 福建省化学工业科学技术研究所 | Be added with the lime-carbonated coal balls of industrial residue |
| CN1141346A (en) * | 1996-05-03 | 1997-01-29 | 宝山钢铁(集团)公司 | Method for prodn. of spongy iron by vertical furnace using coal gas |
| CN1340604A (en) * | 2000-08-25 | 2002-03-20 | 化学工业部西北化工研究院 | Process for preparing coke-water slurry to generate gas |
| CN101497831A (en) * | 2009-01-21 | 2009-08-05 | 江苏索普（集团）有限公司 | Alcohol waste liquor coal liquid, and preparation and use thereof |
| WO2011063971A1 (en) * | 2009-11-27 | 2011-06-03 | Choren Industries Gmbh | Device and method for generating a synthesis gas from processed biomass by entrained-flow gasification |
| CN102504895A (en) * | 2011-10-19 | 2012-06-20 | 新能工业股份有限公司 | Liquid coal slurry composition |
| CN102703146A (en) * | 2012-06-19 | 2012-10-03 | 贵州联和能源清洁燃料有限公司 | Low-sulfur low-ash biomass anthracite coal water slurry and preparation method thereof |
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Address after: 563200 Guizhou city of Zunyi province Loushanguan Economic Development Zone No. 1 (Tongzi county) Patentee after: GUIZHOU CHITIANHUA TONGZI CHEMICAL ENGINEERING CO., LTD. Address before: 563200 Guizhou city of Zunyi province Tongzi County town of stonegateway Liaoyuan Patentee before: Guizhou Jinchi Chemical Co., Ltd. |