EP0016184A1 - Fuels and methods for their production - Google Patents

Fuels and methods for their production

Info

Publication number
EP0016184A1
EP0016184A1 EP19790900986 EP79900986A EP0016184A1 EP 0016184 A1 EP0016184 A1 EP 0016184A1 EP 19790900986 EP19790900986 EP 19790900986 EP 79900986 A EP79900986 A EP 79900986A EP 0016184 A1 EP0016184 A1 EP 0016184A1
Authority
EP
European Patent Office
Prior art keywords
oil
fuel
water
distillate
emulsion
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19790900986
Other languages
German (de)
French (fr)
Inventor
Eric C. Cottell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0016184A1 publication Critical patent/EP0016184A1/en
Withdrawn legal-status Critical Current

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
    • C10L1/324—Dispersions containing coal, oil and water
    • 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
    • C10L1/328—Oil emulsions containing water or any other hydrophilic phase

Definitions

  • This invention is concerend with fuels which comprise emulsions of coal and water with distillate fuel oil or water with a distillate fuel oil.
  • a fuel of the first kind is described in my United States patent 3,941,552 as is a technique for rendering the emulsion stable.
  • a fuel of the second kind is described in my United States patent No. 3,749,318 issued July 31, 1973.
  • the usual technique to achieve this end is to add to the components of the emulsion one or more surfactants such as described, for example, in United States patent No. 3,210,168 issued October 5, 1965 to Arnold J. Morway.
  • the problem is that these surfactants are relatively expensive and detract from rather than add to the calorific value of the fuels.
  • the present invention seeks to provide fuels in emulsion form which are stable and which do not include costly surfactants.
  • emulsions of coal and water with distillate oil or water with distillate oil which are emulsified and which are stabilized by blending a residual oil with the fuel.
  • an emulsion using No. 2 fuel oil blended with a residual oil such as No. 4 or No. 6.
  • the 4 or 6 oil (or mixtures of those and other residual oils) are generally in the proportion of less than 10% by weight of the distillate oil.
  • a fuel of this invention comprises a mixture of about 50% by weight coal particles of about 200 mesh size; 20% water; 25% No. 2 distillate oil; and 5% of No. 4 residual oil.
  • a slurry is formed of the water and coal and the oils are blended. Thereafter the blended oil is united with the slurry of coal and water and the resultant mixture is subjected to agitation to cause the formation of an emulsion.
  • the agitation may be sonic agitation or an homogenizer or other mixing means as, for example, described in my aforementioned patent No. 3,941,552.
  • Another fuel according to this invention is produced by blending 5% of No. 6 residual oil with 80% of No. 2 fuel oil then admixing the resultant blend with water, the water comprising 15% by weight of the mixture. The mixture is then agitated to form an emulsion.
  • the emulsion is stable having a so-called shelf-life of at least 1 week before any appreciable deterioration of the emulsion can be discerned.

Abstract

Emulsion de charbon et d'eau avec un distillat d'huile combustible ou d'eau avec un distillat d'huile combustible qui est rendu stable par melange d'une huile residuelle avec la composante, distillat d'huile combustible, de l'emulsion. L'utilisation de surfactants est ainsi evitee.Coal and water emulsion with a combustible oil distillate or water with a combustible oil distillate which is made stable by mixing a residual oil with the combustible oil distillate component of the emulsion . The use of surfactants is thus avoided.

Description

FUELS AND METHODS FOR THEIR PRODUCTION Background of the Invention
This invention is concerend with fuels which comprise emulsions of coal and water with distillate fuel oil or water with a distillate fuel oil. A fuel of the first kind is described in my United States patent 3,941,552 as is a technique for rendering the emulsion stable. A fuel of the second kind is described in my United States patent No. 3,749,318 issued July 31, 1973. In each of those patents and as is generally recognized, there is a need for the fuel to be rendered stable i.e. to stabilize the emulsion so that it may be transported, stored and burned effectively. The usual technique to achieve this end is to add to the components of the emulsion one or more surfactants such as described, for example, in United States patent No. 3,210,168 issued October 5, 1965 to Arnold J. Morway. The problem is that these surfactants are relatively expensive and detract from rather than add to the calorific value of the fuels. The present invention seeks to provide fuels in emulsion form which are stable and which do not include costly surfactants.
Brief Summary of the Invention
According to this invention, there are provided emulsions of coal and water with distillate oil or water with distillate oil which are emulsified and which are stabilized by blending a residual oil with the fuel.
In particular one can obtain an emulsion using No. 2 fuel oil blended with a residual oil such as No. 4 or No. 6. The 4 or 6 oil (or mixtures of those and other residual oils) are generally in the proportion of less than 10% by weight of the distillate oil.
Description of a Preferred Embodiment
A fuel of this invention comprises a mixture of about 50% by weight coal particles of about 200 mesh size; 20% water; 25% No. 2 distillate oil; and 5% of No. 4 residual oil.
In producing the fuel a slurry is formed of the water and coal and the oils are blended. Thereafter the blended oil is united with the slurry of coal and water and the resultant mixture is subjected to agitation to cause the formation of an emulsion. The agitation may be sonic agitation or an homogenizer or other mixing means as, for example, described in my aforementioned patent No. 3,941,552.
Another fuel according to this invention is produced by blending 5% of No. 6 residual oil with 80% of No. 2 fuel oil then admixing the resultant blend with water, the water comprising 15% by weight of the mixture. The mixture is then agitated to form an emulsion.
In each of the fuels described hereabove, the emulsion is stable having a so-called shelf-life of at least 1 week before any appreciable deterioration of the emulsion can be discerned.

Claims

WHAT IS CLAIMED IS
1. A fuel comprises an emulsion of coal and water with a distillate oil or of water with a distillate oil which emulsion is rendered stable by admixing a residual oil with said distillate oil component of the emulsion.
2. A fuel as claimed in claim 1 wherein said residual oil comprises between 1% and 30% by weight of said distillate oil.
3. A fuel as claimed in claim 1 wherein said distillate oil is No. 2 fuel oil.
4. A fuel as claimed in claim 1 wherein said residual oil is No. 4 oil.
5. A fuel as claimed in claim 2 wherein said residual oil is No. 4 oil.
6. A fuel as claimed in claim 3 wherein said residual oil is No. 4 oil.
7. A fuel as claimed in claim 1 wherein said residual oil is No. 6 oil.
8. A fuel as claimed in claim 2 wherein said residual oil is No. 6 oil.
9. A fuel as claimed in claim 3 wherein said residual oil is No. 6 oil.
10. A method of making a fuel which comprises making a mixture of coal and water with a distillate oil or water with a distillate oil, adding a residual oil and thereafter subjecting the mixture to agitation to form a stable emulsion.
11. A method as claimed in claim 9 wherein said residual oil is mixed with said distillate oil prior to making said mixture with coal and water or with water alone.
EP19790900986 1978-08-14 1980-03-25 Fuels and methods for their production Withdrawn EP0016184A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1978/000066 WO1980000449A1 (en) 1978-08-14 1978-08-14 Fuels and methods for their production

Publications (1)

Publication Number Publication Date
EP0016184A1 true EP0016184A1 (en) 1980-10-01

Family

ID=22141267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790900986 Withdrawn EP0016184A1 (en) 1978-08-14 1980-03-25 Fuels and methods for their production

Country Status (3)

Country Link
EP (1) EP0016184A1 (en)
CA (1) CA1104345A (en)
WO (1) WO1980000449A1 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210168A (en) * 1962-05-22 1965-10-05 Exxon Research Engineering Co Stabilized oiled coal slurry in water
US3876391A (en) * 1969-02-28 1975-04-08 Texaco Inc Process of preparing novel micro emulsions
US3846087A (en) * 1971-09-22 1974-11-05 Texaco Inc Method of reducing the viscosity of carbon-containing oils
US3907134A (en) * 1974-02-27 1975-09-23 Carbonoyl Company Water-free liquid fuel slurry and method of producing same
US4158551A (en) * 1975-01-27 1979-06-19 Feuerman Arnold I Gasoline-water emulsion
US4030894A (en) * 1975-06-30 1977-06-21 Interlake, Inc. Stabilized fuel slurry
US4008038A (en) * 1975-09-10 1977-02-15 Columbia Technical Corporation Fuel conditioning apparatus and method
US4153421A (en) * 1976-05-17 1979-05-08 Interlake, Inc. Stabilized fuel slurry
US4101293A (en) * 1977-03-30 1978-07-18 Reichhold Chemicals, Inc. Stabilizing emulsifiers
US4089657A (en) * 1977-05-16 1978-05-16 The Keller Corporation Stabilized suspension of carbon in hydrocarbon fuel and method of preparation
US4162143A (en) * 1978-03-13 1979-07-24 Ici Americas Inc. Emulsifier blend and aqueous fuel oil emulsions
US4149855A (en) * 1978-06-08 1979-04-17 Suntech, Inc. Stabilized coal-oil slurry and process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8000449A1 *

Also Published As

Publication number Publication date
CA1104345A (en) 1981-07-07
WO1980000449A1 (en) 1980-03-20

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19801016