CN1127558C - Process for preparing coke-water slurry to generate gas - Google Patents
Process for preparing coke-water slurry to generate gas Download PDFInfo
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- CN1127558C CN1127558C CN 00113911 CN00113911A CN1127558C CN 1127558 C CN1127558 C CN 1127558C CN 00113911 CN00113911 CN 00113911 CN 00113911 A CN00113911 A CN 00113911A CN 1127558 C CN1127558 C CN 1127558C
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Abstract
The present invention relates to a preparation method of gasifying slurry which comprises coal, refinery coke, an additive and water, and a technology of the gasifying slurry. In the preparation method and the technology, the coal, the refinery coke, the water and the additive are simultaneously added to a grinding device for preparing the slurry; the technology is a wet grinding technology for preparing the slurry; in the prepared slurry, the granularity of 100% of the coal is smaller than 0.9mm, the granularity of 30 to 80% of the coal is smaller than 0.76mm, the granularity of 100% of the refinery coke is smaller than 0.6mm, and the granularity of 50 to 90% of the refinery coke is smaller than 0.076mm. The preparation method meets the different granularity requirements of the coal and the refinery coke, and overcomes the defects of great investment, complicated operation and uncontrollable product quality of a divided grinding technology device for preparing the slurry of the coal and the refinery coke. The preparation method can be directly used in the preparation of coke-water gasifying slurry by the existing water coal slurry preparation device, and can be applied to the preparation of raw material gas, such as synthetic ammonia, synthetic methanol, etc.
Description
The present invention relates to a kind of preparation method of coke-water slurry to generate gas.
COAL-WATER SLURRY TECHNOLOGY is to realize the important technology behave of replace oil with coal and coal comprehensive utilization, coal water slurry is industrialization, be applied to industries such as water coal slurry pressure gasification (Texaco vaporizing system synthetic gas) and boiler combustion, particularly comparatively ripe in the water coal slurry pressure gasification application facet, at home and abroad developed faster.From present Texaco gasification running condition, effective composition of ubiquity slip and thermal value are low, and gasification oxygen consumes, coal consumption is higher.By add the part refinery coke in coal water slurry, this method had both improved slip effectively to be formed, and has solved the waste in the petroleum refining process again.
The operational path of preparation coal water slurry mainly contains two kinds both at home and abroad at present: a kind of is secondary wet-milling pulping process; Another kind is a wet-milling pulping process.Use the coal water slurry preparation and adopt secondary wet-milling slurrying mostly.For the existing patent report of the preparation were established of burnt coal water slurry, clear 59-15484 has set forth a kind of burnt coal water slurry preparation technology as day disclosure special permission communique, adopt secondary wet-milling slurrying, the solid fuel of the first step low ash content (refinery coke) grinds into the burnt water slurry that concentration is 30～60wt%, used dispersion agent is well-known naphthalenesulfonate, sulfonated petro-leum, sulfonated lignin etc., consumption is 0.01～3wt%, and stablizer is polyose and natural tackifier, and consumption is below 2%.Second step was, the prepared mixed slurry of the first step and the slurrying of ash-rich solid fuel (coal) blend case of wet attrition have so just obtained the solid fuel-water mixed pulp of low viscosity, high density.But this technical process complexity, equipment is many, investment is big, complex operation.Simultaneously, the Texaco gasified coal water slurry preparation system that turns round both at home and abroad all adopts a wet-milling pulping process (as U.S. Pat 4,304, the preparation of 572 solid fuels-water soup compound) at present.Therefore, burnt water coal charge slurry technology can not directly be used at existing Texaco slip preparation system, has limited and has promoted the use of.
In order to overcome the deficiency of burnt water coal secondary wet-milling pulping process, reach the purpose of using burnt coal water slurry at existing Texaco gasified coal water slurry preparation system.The present invention and task are proposed: develop a wet-milling slurrying of burnt water coal preparation method, the burnt coal water slurry of preparation has higher solid content, flowability and excellent in stability, and the granularity of coal and refinery coke meets the gasification requirement, guarantee to obtain in the gasification efficiency of carbon conversion of expection, and be easy in the Texaco gasified coal water slurry preparation system of operation now, use.
Of the present invention is a kind of preparation method of coke-water slurry to generate gas, and its main contents comprise: coal, refinery coke, water and additive add simultaneously and grind slip in the grinding plant, by adjusting feed size, grinding body gradation and processing condition.The granularity 100% that makes coal in its slip is less than 0.9mm, and 30～80% less than 0.076mm; The granularity 100% of refinery coke is less than 0.6mm, and 50～90% less than 0.076mm, and this preparation method takes into account slurrying, required coal size range and the distribution requirement different with refinery coke of gasification.
Realize that the concrete preparation process of the present invention is such:
A. with coal and refinery coke precrushing, coal dust is broken to 100% not in 10mm, and refinery coke is crushed to 100% less than 5mm..
B. fragmentation is good coal and refinery coke add grinding plant simultaneously, or earlier refinery coke and coal are mixed back adding grinding plant by a certain percentage, adding coal in refinery coke, add entry and additive.
C. coal, refinery coke, water and additive are made burnt coal water slurry in grinding plant, use for the postorder gasification process.
Be used for realizing that technical measures of the present invention are in the slip preparation process, select the XB-1 emulsifying dispersant for use.
Be used to realize that the body material that the present invention uses is coal and refinery coke.But coal bituminous coal, hard coal, brown coal; Refinery coke is a green coke, can grind index HGI 〉=80.
Burnt coal water slurry preparation process adopts a wet type refining process.
Below in conjunction with embodiment, the present invention is further illustrated, but the present invention is not limited to present embodiment.
Embodiment one
It is shenfu coal that coal is selected in this experiment for use, and burnt the kind is Anqing refinery coke, and water is local tap water, and additive is the XB-1 emulsifying dispersant.Coal feeding amount is 80Kg/h, throws burnt amount and is 16Kg/h, and the flow control of water is at 51Kg/h, and the dosage of additive remains 0.398Kg/h.The flow of the burnt coal water slurry of preparation is 144Kg/h, and the concentration of measuring slurry is 65.27%, and the performance of slurry shows as: rheological is yield pseudoplasticity, and the static bleed rate of 24hr is 0.4%, leaves standstill seven days no obvious sediment, and apparent viscosity is 1678mpa.s (D=10S
-1), mobile 38S.
Embodiment two
It is shenfu coal that coal is selected in this experiment for use, and burnt the kind is Anqing refinery coke, and water is local tap water, and additive is the XB-1 emulsifying dispersant.Coal feeding amount is 70Kg/h, throws burnt amount and is 23Kg/h, and the flow control of water is at 50Kg/h, and additive capacity is controlled at 0.372Kg/h.The flow of burnt coal water slurry is about 144Kg/h, and the concentration determination of slurry is 64.37%, and the performance of slurry shows as: rheological is yield pseudoplasticity, and the static folding of 24hr water rate is 0.6%, leaves standstill seven days no obvious sediment, and apparent viscosity is 1524mpa.s (D=10S
-1), mobile 33.7S.
Embodiment three
It is shenfu coal that coal is selected in this experiment for use, and burnt the kind is Anqing refinery coke, and water is local tap water, and additive is the XB-1 emulsifying dispersant.Coal feeding amount is 48Kg/h, throws burnt amount and is 48Kg/h, and the flow control of water is at 47Kg/h, and additive capacity is controlled at 0.264Kg/h.The flow of burnt coal water slurry is about 144Kg/h, and the concentration determination of slurry is 66.83%, and the performance of slurry shows as: rheological is yield pseudoplasticity, and the static folding of 24hr water rate is 0.2%, leaves standstill seven days no obvious sediment, and apparent viscosity is 1696mpa.s (D=10S
-1), mobile 67.4S.
Embodiment four
It is shenfu coal that coal is selected in this experiment for use, and burnt the kind is Zhenghai low-sulfur refinery coke, and water is local tap water, and additive is the XB-1 emulsifying dispersant.Coal feeding amount is 48Kg/h, throws burnt amount and is 48Kg/h, and the flow control of water is at 49Kg/h, and additive capacity remains 0.26Kg/h.The flow of burnt coal water slurry is about 145Kg/h, and the concentration determination of burnt coal water slurry is 65.39%, and the performance of slurry shows as: rheological is surrender plasticity, and the static folding of 24hr water rate is 0.4%, leaves standstill seven days no obvious sediment, and apparent viscosity is 1378mpa.s (D=10S
-1), mobile 59.8S.
Embodiment five
It is shenfu coal that coal is selected in this experiment for use, and burnt the kind is Zhenghai high sulfur petroleum coke, and water is local tap water, and additive is the XB-1 emulsifying dispersant.Coal feeding amount is 48Kg/h, throws burnt amount and is 48Kg/h, and the flow control of water is at 49Kg/h, and additive capacity remains 0.26Kg/h.The flow of burnt coal water slurry is about 145Kg/h, and the concentration determination of burnt coal water slurry is 65.72%, and the performance of slurry shows as: rheological is surrender plasticity, and the static folding of 24hr water rate is 0.2%, leaves standstill seven days no obvious sediment, and apparent viscosity is 1414mpa.s (D=10S
-1), mobile 62S.
Claims (3)
1. the preparation method of a coke-water slurry to generate gas is characterized in that coal, refinery coke, water and wet type of additive grind slurry altogether, and its preparation process is:
1. with coal and refinery coke precrushing, coal is crushed to 100% less than 10mm, and refinery coke is crushed to 100% less than 5mm;
2. fragmentation is good coal and refinery coke add grinding plant simultaneously, or earlier refinery coke and coal are mixed back adding grinding plant by a certain percentage, when adding coal and refinery coke, add entry and additive;
3. coal, refinery coke, water and additive prepare the coking coal water slurry in grinding plant, use for the postorder gasification process,
In the above-mentioned pulping process, coal, refinery coke, water and additive input amount span of control are (weight percent): (30-55%): (10-36%): (32-35%): (0.15-0.30%), selected additive is the XB-1 emulsifying dispersant, the granularity 100% of the slip coal of preparation is less than 0.9mm, 30-80% is less than 0.076mm, the granularity 100% of refinery coke is less than 0.6mm, and 50-90% is less than 0.076mm.
2. press the preparation method of claim 1 described coke-water slurry to generate gas, it is characterized in that described coal is bituminous coal, hard coal, brown coal.
3. press the preparation method of claim 1 described coke-water slurry to generate gas, it is characterized in that described refinery coke is a green coke, can grind index HGI 〉=80.
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|---|---|---|---|
| CN 00113911 CN1127558C (en) | 2000-08-25 | 2000-08-25 | Process for preparing coke-water slurry to generate gas |
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| CN 00113911 CN1127558C (en) | 2000-08-25 | 2000-08-25 | Process for preparing coke-water slurry to generate gas |
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| CN1340604A CN1340604A (en) | 2002-03-20 |
| CN1127558C true CN1127558C (en) | 2003-11-12 |
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| CN 00113911 Expired - Lifetime CN1127558C (en) | 2000-08-25 | 2000-08-25 | Process for preparing coke-water slurry to generate gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225335B (en) * | 2008-01-27 | 2011-06-22 | 中国石油化工集团公司 | Preparation method of water coke slurry for gasification |
| RU2793038C1 (en) * | 2021-10-29 | 2023-03-28 | Общество с ограниченной ответственностью «Газпромнефть-Битумные материалы» (ООО «Газпромнефть-БМ») | Structuring additive for asphalt mixes |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362966B (en) * | 2008-10-14 | 2011-07-06 | 西北化工研究院 | Preparation method of multi-component slurry for production of synthesis gas and multi-component slurry obtained by said method |
| US8343243B2 (en) * | 2009-03-31 | 2013-01-01 | General Electric Company | Method and apparatus for blending lignite and coke slurries |
| CN102899111B (en) * | 2012-11-01 | 2015-12-09 | 西北化工研究院 | A kind of method being produced gasification slip by trade effluent and coke powder |
| CN102977953B (en) * | 2012-12-07 | 2015-01-21 | 贵州金赤化工有限责任公司 | Anthracite coal water slurry for coal gasification and preparation method thereof |
| CN105062586A (en) * | 2015-07-13 | 2015-11-18 | 新疆天智辰业化工有限公司 | Method for preparing coal-water slurry from coke slurry made of coke waste material |
| CN105695011B (en) * | 2016-03-16 | 2017-12-12 | 中国石油大学(华东) | One kind gasification auxiliary pulping system and its application method |
-
2000
- 2000-08-25 CN CN 00113911 patent/CN1127558C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225335B (en) * | 2008-01-27 | 2011-06-22 | 中国石油化工集团公司 | Preparation method of water coke slurry for gasification |
| RU2793038C1 (en) * | 2021-10-29 | 2023-03-28 | Общество с ограниченной ответственностью «Газпромнефть-Битумные материалы» (ООО «Газпромнефть-БМ») | Structuring additive for asphalt mixes |
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| Publication number | Publication date |
|---|---|
| CN1340604A (en) | 2002-03-20 |
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Owner name: XI'AN YUANCHUANG CHEMICAL INDUSTRY TECHNOLOGY CO., Free format text: FORMER OWNER: XIBEI CHEMICAL RESEARCH INST., MINISTRY OF CHEMISTRY Effective date: 20141016 |
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Effective date of registration: 20141016 Address after: 710061, west two floor, Qujiang campus, Xi'an Jiao Tong University, Yanta Road, 99, Yanta District, Shaanxi, Xi'an Patentee after: Xi'an Origin Chemical Technologies Co., Ltd. Patentee after: China Petrochemical Group Corp. Address before: 710600 No. 1 Railway Station Street, Lintong District, Shaanxi, Xi'an Patentee before: Xibei Chemical Research Inst., Ministry of Chemistry Patentee before: China Petrochemical Group Corp. |
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Granted publication date: 20031112 |
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