ATE11927T1 - PROCESS FOR THE PREPARATION OF COAL-WATERFUEL SUSPENSIONS AND THE RESULTING PRODUCT. - Google Patents

PROCESS FOR THE PREPARATION OF COAL-WATERFUEL SUSPENSIONS AND THE RESULTING PRODUCT.

Info

Publication number
ATE11927T1
ATE11927T1 AT81304187T AT81304187T ATE11927T1 AT E11927 T1 ATE11927 T1 AT E11927T1 AT 81304187 T AT81304187 T AT 81304187T AT 81304187 T AT81304187 T AT 81304187T AT E11927 T1 ATE11927 T1 AT E11927T1
Authority
AT
Austria
Prior art keywords
coal
slurry
fluid
mmd
fuel
Prior art date
Application number
AT81304187T
Other languages
German (de)
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
Application granted granted Critical
Publication of ATE11927T1 publication Critical patent/ATE11927T1/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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • 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

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.
AT81304187T 1980-10-17 1981-09-14 PROCESS FOR THE PREPARATION OF COAL-WATERFUEL SUSPENSIONS AND THE RESULTING PRODUCT. ATE11927T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19785380A 1980-10-17 1980-10-17
EP81304187A EP0050412B1 (en) 1980-10-17 1981-09-14 A process for making fuel slurries of coal in water and the product thereof

Publications (1)

Publication Number Publication Date
ATE11927T1 true ATE11927T1 (en) 1985-03-15

Family

ID=22731003

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81304187T ATE11927T1 (en) 1980-10-17 1981-09-14 PROCESS FOR THE PREPARATION OF COAL-WATERFUEL SUSPENSIONS AND THE RESULTING PRODUCT.

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
IT1211049B (en) * 1981-05-21 1989-09-29 Snam Progetti COAL WATER SUSPENSION.
GR76426B (en) * 1981-05-21 1984-08-10 Snam Progetti
JPS5896690A (en) * 1981-12-03 1983-06-08 Electric Power Dev Co Ltd Preparation of concentrated coal slurry
NZ202639A (en) * 1982-03-22 1986-03-14 Atlantic Res Corp Stable coal-water slurries and a method for their preparation
US4498906A (en) * 1982-03-22 1985-02-12 Atlantic Research Corporation Coal-water fuel slurries and process for making
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
DE3463394D1 (en) * 1983-07-05 1987-06-04 Babcock Hitachi Kk 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
WO2010039315A2 (en) * 2008-06-30 2010-04-08 Nano Dispersions Technology, Inc. Nano-dispersions of coal in water as the basis of fuel related tecfinologies and methods of making same
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
SG194121A1 (en) * 2011-04-07 2013-11-29 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
AU7543981A (en) 1982-04-22
JPS5796090A (en) 1982-06-15
EP0050412A3 (en) 1982-08-04
CA1178441A (en) 1984-11-27
IL63866A0 (en) 1981-12-31
EP0050412A2 (en) 1982-04-28
AU554293B2 (en) 1986-08-14
DE3169061D1 (en) 1985-03-28
EP0050412B1 (en) 1985-02-20
IL63866A (en) 1984-07-31
ZA816150B (en) 1982-09-29

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Legal Events

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UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee