[go: up one dir, main page]

ZA816150B - Process for making fuel slurries of coal in water and product thereof - Google Patents

Process for making fuel slurries of coal in water and product thereof

Info

Publication number
ZA816150B
ZA816150B ZA816150A ZA816150A ZA816150B ZA 816150 B ZA816150 B ZA 816150B ZA 816150 A ZA816150 A ZA 816150A ZA 816150 A ZA816150 A ZA 816150A ZA 816150 B ZA816150 B ZA 816150B
Authority
ZA
South Africa
Prior art keywords
coal
slurry
water
fluid
mmd
Prior art date
Application number
ZA816150A
Inventor
Robert Stephen Scheffee
Original Assignee
Atlantic Res Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlantic Res Corp filed Critical Atlantic Res Corp
Publication of ZA816150B publication Critical patent/ZA816150B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
    • C10L1/326—Coal-water suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Colloid Chemistry (AREA)

Abstract

A process for making fluid, stable slurries of finely divided coal in water, which can be sufficiently highly loaded to serve as fuel, comprises: a) Admixing: (i) ultrafine coal particles having a maximum size of 10 mu m MMD in an amount comprising from 10 to 30% by weight of the slurry, (ii) larger coal particles within the size range of from 20 to 200 mu m MMD in an amount sufficient to provide a desired total coal concentration in the slurry, (iii) water, and, (iv) a minor amount of dispersant consisting essentially of an alkaline earth metal salt of an organosulfonate in which the organic moiety is multifunctional, and b) subjecting the mixture to high shear at a rate of at least 100 sec<-><1>. Preferably, calcium lignosulphonate is used as the dispersant and the pH is maintained in the range of 5 to 8 using an inorganic alkali metal buffer salt. The slurry thus produced exhibits thixotropic or Bingham fluid-like properties enabling prolonged periods of storage with subsequent restoration of fluid characteristics to enable use as a fuel.
ZA816150A 1980-10-17 1981-09-04 Process for making fuel slurries of coal in water and product thereof ZA816150B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19785380A 1980-10-17 1980-10-17

Publications (1)

Publication Number Publication Date
ZA816150B true ZA816150B (en) 1982-09-29

Family

ID=22731003

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA816150A ZA816150B (en) 1980-10-17 1981-09-04 Process for making fuel slurries of coal in water and product thereof

Country Status (8)

Country Link
EP (1) EP0050412B1 (en)
JP (1) JPS5796090A (en)
AT (1) ATE11927T1 (en)
AU (1) AU554293B2 (en)
CA (1) CA1178441A (en)
DE (1) DE3169061D1 (en)
IL (1) IL63866A (en)
ZA (1) ZA816150B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441889A (en) * 1981-01-29 1984-04-10 Gulf & Western Industries, Inc. Coal-aqueous mixtures
US4551179A (en) * 1981-01-29 1985-11-05 The Standard Oil Company Coal-aqueous mixtures
GR76426B (en) * 1981-05-21 1984-08-10 Snam Progetti
IT1211049B (en) * 1981-05-21 1989-09-29 Snam Progetti COAL WATER SUSPENSION.
JPS5896690A (en) * 1981-12-03 1983-06-08 Electric Power Dev Co Ltd Preparation of concentrated coal slurry
US4498906A (en) * 1982-03-22 1985-02-12 Atlantic Research Corporation Coal-water fuel slurries and process for making
NZ202639A (en) * 1982-03-22 1986-03-14 Atlantic Res Corp Stable coal-water slurries and a method for their preparation
US4504277A (en) * 1982-04-16 1985-03-12 Atlantic Research Corporation Coal-water fuel slurries and process for making same
SE8202879L (en) * 1982-05-07 1983-11-08 Carbogel Ab WATER SLUSHING OF A SOLID FUEL AND KITCHEN AND MEANS OF PREPARING THEREOF
EP0094786B1 (en) * 1982-05-19 1987-11-04 The British Petroleum Company p.l.c. Mineral slurries
GB2121819B (en) * 1982-06-14 1985-03-27 Smidth & Co As F L Method of manufacturing a pumpable coal/liquid mixture
US4511365A (en) * 1982-09-10 1985-04-16 Sohio Alternate Energy Development Company Coal-aqueous mixtures
US4722740A (en) * 1982-09-30 1988-02-02 Oxce Fuel Company Dispersions of coal in water useful as a fuel
FR2538407A1 (en) * 1982-12-27 1984-06-29 Raffinage Cie Francaise LIQUID FUEL BASED ON PULVERIZED SOLID FUEL, PETROLEUM RESIDUES AND WATER, ITS PREPARATION PROCESS AND APPLICATION IN BOILERS OR INDUSTRIAL FURNACES
EP0130849B1 (en) * 1983-07-05 1987-04-29 Babcock-Hitachi Kabushiki Kaisha Process for producing a high concentration coal-water slurry
GB8319033D0 (en) * 1983-07-14 1983-08-17 Carbogel Ab Sulphur capture
JPS6058491A (en) * 1983-09-09 1985-04-04 Electric Power Dev Co Ltd Stabilizing treatment of aqueous slully of carbon- containing composition
JPS6071693A (en) * 1983-09-29 1985-04-23 Babcock Hitachi Kk Production of coal-water mixture
JPS6136398A (en) * 1984-07-30 1986-02-21 Babcock Hitachi Kk Production of highly concentrated coal-water slurry
US4810259A (en) * 1985-09-19 1989-03-07 Oxce Fuel Company Method to minimize viscosity and improve stability of coal-water fuels
DE3707941A1 (en) * 1987-03-12 1988-09-22 Henkel Kgaa DISPERSING AGENTS AND THEIR USE IN AQUEOUS CARBON SUSPENSIONS
JPH02232296A (en) * 1989-03-06 1990-09-14 Central Res Inst Of Electric Power Ind Preparation of coal-water slurry
JP2595465B2 (en) * 1994-04-13 1997-04-02 英司 池田 Water / coal blended fuel
US20130074396A1 (en) 2008-06-30 2013-03-28 Gustavo A. Núñez Nano-dispersions of carbonaceous material in water as the basis of fuel related technologies and methods of making same
US8177867B2 (en) * 2008-06-30 2012-05-15 Nano Dispersions Technology Inc. Nano-dispersions of coal in water as the basis of fuel related technologies and methods of making same
SG10201602735VA (en) * 2011-04-07 2016-05-30 Nano Dispersions Technology Inc Nano-dispersions of carbonaceous material in water as the basis of fuel related technologies and methods of making same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522575A (en) * 1976-06-24 1978-08-23 Texaco Development Corp Production of solid fuel-water slurries
US4261701A (en) * 1980-01-09 1981-04-14 Gulf Research & Development Company Uniform coal suspensions and process for preparing same

Also Published As

Publication number Publication date
EP0050412A3 (en) 1982-08-04
ATE11927T1 (en) 1985-03-15
EP0050412A2 (en) 1982-04-28
IL63866A (en) 1984-07-31
EP0050412B1 (en) 1985-02-20
AU554293B2 (en) 1986-08-14
DE3169061D1 (en) 1985-03-28
AU7543981A (en) 1982-04-22
JPS5796090A (en) 1982-06-15
CA1178441A (en) 1984-11-27
IL63866A0 (en) 1981-12-31

Similar Documents

Publication Publication Date Title
DE3169061D1 (en) A process for making fuel slurries of coal in water and the product thereof
GB1514888A (en) Fuel composition and method of manufacturing same
US4208217A (en) Method of stabilizing aqueous fine coal slurry and product thereof
DE3366203D1 (en) Coal-water fuel slurries and process for making
AU556291B2 (en) Making fuel slurries in water
EP0315987A3 (en) Improved organophilic clay suspension medium
JPS57110329A (en) Pigment dispersant
DE3275385D1 (en) Coal-water dispersion
US4670019A (en) Stabilization of coal-oil-water mixtures
RU2086020C1 (en) Method for liquid radioactive waste recovery
JPS5718793A (en) Granulation of coal-water slurry
RU1833407C (en) Method of production of highly concentrated suspensions
JPS56100892A (en) Bulk density enhancing agent of stock coal for preparing coke
ATE83470T1 (en) ALKALINE EARTH CARBONATE BASED GRANULES.
ES8405060A1 (en) Aqueous suspensions containing at least one solid combustible, and process for their preparation.
SE8500640D0 (en) WAY TO MAKE A SUSPENSION OF SOLID PARTICLES
JPS5792089A (en) Coal-water slurry and its production
JPS57147594A (en) Ph adjustment of slurry of coal and water
JPS5636589A (en) Production of mixed fuel
JPS55139494A (en) Sludge-containing mixed fuel
PT72745A (en) Process for filling and compacting surface storage yards with waste material from power plants
IT1241511B (en) Process for purifying process waste water, in particular plant waste water from oil mills
JPS5347406A (en) Dispersed fuel composition
TH36186A (en) Dispersant for fine solid powder
JPS57172988A (en) Additive for petroleum coke/water slurry