موقعك الحالي:صفحة رئيسية>المنتجات
@article{osti_5964537, title = {Production and combustion of hot-water-dried lignite slurries}, author = {Hauserman, W B and Patel, R C and Willson, W G}, abstractNote = {Why should anyone consider making a coal-water slurry from lignites. They have high moisture levels, over 30%, and contain significant amounts of ash. On the positive side, lignites ignite easier, burn faster and are ...
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2019-12-20 Using lignite as an adsorbent and subsequently as a material for coal water slurry CWS preparation represents an alternative method for coal chemical wastewater treatment However the components in these wastewaters could affect the CWS performance especially ammonia nitrogen NH 4 N. Effects of hydrothermal dewatering of lignite on rheology
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The lignite water slurry after hydrothermal dewatering becomes more stable than the raw lignite water slurry. We propose that the mechanism of the stability rendered by HTD is that the slurry after HTD formed aggregation networks (soft sediment) across the whole system that prevents coal particles from becoming hard sediment.
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Hydrothermal dewatering of lignite water slurries: Part 2 . Mar 25, 2018 The network structure (soft sediment) in coal water slurry after HTD was verified and quantified by the yield stress and fractal dimension Our findings indicated that the static stability of coal water slurry may be acquired by the network structure of the aggregated coal
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2021-7-18 Coal-water slurry fuel is a fuel that is domestic, in large supply, can be handled like a liquid, burns like coal, costs like coal, and has the potential as a near term alternative to No. 6 fuel oil. Unlike the coal gasification and liquefication processes, the capital investment required is modest ...
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2017-4-1 Ignition processes were studied for coal-water slurry containing petrochemicals based on a large group of components. In particular, we used pulverized lignite and coal as well as their typical derivatives after coal filtration at enrichment factories – filter cakes (jelly-like mixture of water and coal processing waste).
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2015-10-17 The composition of coal-water fuel includes two components: coal or lignite fine particles and water or liquid industrial waste (industrial water). Furthermore, various combustible liquid wastes may be added to artificial composite liquid fuel in addition to the components typical for coal-water slurry fuel.
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2019-2-15 Using lignite as an adsorbent and subsequently as a material for coal water slurry (CWS) preparation represents an alternative method for coal chemical wastewater treatment. However, the components in these wastewaters could affect the CWS performance, especially ammonia nitrogen (NH 4
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The viscosity of coal water slurry at the shear rate of 100 s −1 decreases with an increasing HTD temperature, which is probably due to the decrease of volume of lignite particles caused by the permanent reduction of both bound and non-freezable water (inherent moisture) after the HTD process. The reduction of the inherent moisture of lignite ...
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Lignite is difficult to be used in the preparation of high concentration coal water slurry. To improve its slurryability, two methods based on surface
Read More2019-12-20 Using lignite as an adsorbent and subsequently as a material for coal water slurry CWS preparation represents an alternative method for coal chemical wastewater treatment However the components in these wastewaters could affect the CWS performance especially ammonia nitrogen NH 4 N. Effects of hydrothermal dewatering of lignite on rheology
Read More
2019-4-15 Coal water slurry has become a mature and reliable technology of oil replacement after years of development, and it has been widely applied in varieties of industrial fields. Preparation of slurry is the basis of the technology of coal water slurry. Presently, preparation of high concentration CWS of lignite
Read MoreHydrothermal dewatering of lignite water slurries: Part 2 . Mar 25, 2018 The network structure (soft sediment) in coal water slurry after HTD was verified and quantified by the yield stress and fractal dimension Our findings indicated that the static stability of coal water slurry may be acquired by the network structure of the aggregated coal
Read MoreLignite is difficult to be used in the preparation of high concentration coal water slurry. To improve its slurryability, two methods based on surface
Read More2019-2-15 Using lignite as an adsorbent and subsequently as a material for coal water slurry (CWS) preparation represents an alternative method for coal chemical wastewater treatment. However, the components in these wastewaters could affect the CWS performance, especially ammonia nitrogen (NH 4
Read More2017-4-1 Ignition processes were studied for coal-water slurry containing petrochemicals based on a large group of components. In particular, we used pulverized lignite and coal as well as their typical derivatives after coal filtration at enrichment factories – filter cakes (jelly-like mixture of water and coal processing waste).
Read More
Xiaolongtan lignite was upgraded by hydrothermal dewatering (HTD). The main factors affecting slurry-ability of the lignite including coal property, oxygen functional groups, surface hydrophilicity, and particle size distribution were analyzed. The effect of HTD on solid concentration, rheology, and stability of the upgraded coal was also investigated.
Read MoreKeywords lignite-water slurry, particle size, rheology Lignite is thought to be unsuitable for the preparation of coal water slurry (CWS) because of its high inherent moisture content, high sulfur content, and low calorific value. However, lignite is the primary energy source of some countries, such as
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2019-4-1 Abstract Lignite is difficult to be used in the preparation of high concentration coal water slurry. To improve its slurryability, two methods based on surface modification were investigated. In method I, the second fluid which is immiscible with the ...
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2020-4-1 Abstract Sludge from coal chemical industry is hazardous and difficult to disposal. In this study, a coal chemical sludge was mixed with lignite, coking coal and lean coal to prepare coal-sludge-slurry(CSS) for gasification and combustion. The results ...
Read MoreBulkbuy New Designed Raw Coal, Coal Slime, Slurry, Lignite, Fly Ash Rotary Drum Dryer price comparison, get China New Designed Raw Coal, Coal Slime, Slurry, Lignite, Fly Ash Rotary Drum Dryer price comparison from Coal Dryer, Coal Slime Dryer manufacturers suppliers on Video Channel of Made-in-China .
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coal water slurry lignite. Usingligniteas an adsorbent and subsequently as a material forcoal water slurry(CWS) preparation represents an alternative method forcoal chemical wastewater treatment. However, the components in these wastewaters could affect the CWS performance, especially ammonia nitrogen (NH 4 +N). 29-May
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Lignite is abundant in China, but it's difficult to prepare high concentration coal water slurry. Advanced technologies of producing coal water slurry by lignite were introduced in this paper. The preparation of high-quality lignite coal water slurry should be based on the characteristics of coal, choose suitable pretreatment technology, particle size distribution technology, using appropriate ...
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Lignite Coal Water Slurry Pdf. 2009-6-15the team then gathered slurry water and coal samples to evaluate 175 parameters most of which are not routinely tested as part of a mining operation alteration in the natural series from lignite to anthracite coal seam a bed or stratum o. Learn More.
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CWS preparation mostly high-end coal, lignite because of their high inherent moisture content is difficult to obtain a high concentration coal-water slurry. Lignite pyrolysis char is suitable for preparation of low inherent moisture and hydrophilic groups, Coke Water Slurry. In this paper, to expand the range of raw materials of the CWS and ...
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The invention belongs to the clean coal technical field and provides a method for preparing water coke slurry by using lignite semicoke as a raw material. The method is characterized in that: the lignite is pyrogenated at medium and low temperature to obtain semicoke which is taken as the raw material; sodium lignosulphonate, naphthalenesulfonic acid or composition of the sodium ...
Read MoreKeywords lignite-water slurry, particle size, rheology Lignite is thought to be unsuitable for the preparation of coal water slurry (CWS) because of its high inherent moisture content, high sulfur content, and low calorific value. However, lignite is the primary energy source of some countries, such as
Read MoreXiaolongtan lignite was upgraded by hydrothermal dewatering (HTD). The main factors affecting slurry-ability of the lignite including coal property, oxygen functional groups, surface hydrophilicity, and particle size distribution were analyzed. The effect of HTD on solid concentration, rheology, and stability of the upgraded coal was also investigated.
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The aqueous chemistry of lignite can change the properties of coal–water slurry. The aqueous chemistry of lignite–water slurry including dissolution k
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2015-1-20 Petroleum coke and lignite are two important fossil fuels that have not been widely used in China. Petroleum coke–lignite slurry (PCLS), a mixture of petroleum coke, lignite, water, and additives, efficiently utilizes the two materials. In this study, we investigate the effects of the proportion (α) of petroleum coke on slurryability, rheological behavior, stability, and increasing ...
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
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