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
  • C10L7/00—Fuels produced by solidifying fluid fuels
  • C10L7/02—Fuels produced by solidifying fluid fuels liquid fuels

Definitions

• This invention relates to the processing of kerosene, a complex liquid hydrocarbon fuel oil, originally distilled from coal, bitumen and/or petroleum.
• Kerosene typically has a boiling point in the range 180-230° C.
• kerosene are used extensively as lamp oils but are also used absorbed on charcoal as a fuel for lighting barbecues. Traditionally, these preparations have been formulated with added colouring and/or fragrance components essentially to deodorise or mask the characteristic hydrocarbon smell.
• kerosene for most purposes is not generally susceptible to being successfully thickened.
• a method of thickening liquid hydrocarbons comprises mixing the hydrocarbon with an essentially paraffin polyolefin polymer in solid form to yield a thickened homogenous solution.
• a composition of matter comprises a thickened homogenous solution of an essentially paraffin polyolefin polymer in solid form dissolved in a liquid hydrocarbon.
• the product of the invention may be used as a lamp oil but may also be applied to charcoal for use as a lighting fuel for barbecues, for which it is superior to unthickened hydrocarbon fuels as such in providing better adhesion and absorption of fuel onto the charcoal and also in providing enhanced burning times and burn rates.
• Additive materials for the deodorising, colouring and/or enhancement of the product perception may be mixed with the inventive composition while still remaining with the terms of the lamp oil directive.
• the liquid hydrocarbon comprises commercial kerosene having a boiling point in the range 180-230° C., preferably a low odour kerosene having a flashpoint greater than or equal to 62° C., typically 63 to 68° C.
• the polyolefin polymer may be a medium or high molecular weight polymer of an alkene, preferably a branched chain alkene such as polyisobutylene. In polymerisation of such polymers, the olefinic unsaturation is removed except at the terminal moieties.
• the preferred molecular weight is in the region of 1.4 to 2.0, (viscosity average ⁇ 10 ⁇ 6), a suitable polymer being commercially available under the trade name ‘Vistanex’, such as ‘Vistanex MML-120’.
• Vistanex such as ‘Vistanex MML-120’.
• Such compounds which are generally used as plasticisers, resemble uncured natural and synthetic rubbers in their physical properties and, when mixed with a hydrocarbon solvent according to the present invention, the polymer initially swells in volume as it appears to imbibe the solvent.
• the polymer is ground to form granules or particles before being added to the solvent, the individual granules or particles thereof eventually breaking up and becoming dissolved and homogenous in the solvent. The higher is the surface area to volume ratio of the granules or particles, the faster will be the rate of dissolution.
• a thickened kerosene formulation contains the following ingredients: Material % W/W Low Odour Kerosene 90- ⁇ 100 typically 95 Polyolefin polymer (Vistanex Up to 5 typically 2.5 MML-120) Fragrance material (optional) Up to 5 typically 2.5
• Such a formulation has the following properties: Density 0.75-0.80 gm/ml @ 20° C. typically 0.78 gm/ml Flash point 62-66° C. typically 63-65° C.
• the formulation can be used as a lamp oil.

Landscapes

• Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Liquid Carbonaceous Fuels (AREA)
• Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
• Fats And Perfumes (AREA)
• Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
• Solid Fuels And Fuel-Associated Substances (AREA)
• Lubricants (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Applications Claiming Priority (3)

Publications (1)

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Citations (5)

• 2003
  • 2003-07-11 GB GBGB0316301.1A patent/GB0316301D0/en not_active Ceased
• 2004
  • 2004-07-12 WO PCT/GB2004/003011 patent/WO2005007784A1/en not_active Ceased
  • 2004-07-12 AT AT04743352T patent/ATE446354T1/de not_active IP Right Cessation
  • 2004-07-12 DK DK04743352.9T patent/DK1678281T3/da active
  • 2004-07-12 EP EP04743352A patent/EP1678281B1/en not_active Expired - Lifetime
  • 2004-07-12 ES ES04743352T patent/ES2335212T3/es not_active Expired - Lifetime
  • 2004-07-12 CA CA2572145A patent/CA2572145C/en not_active Expired - Lifetime
  • 2004-07-12 US US10/564,192 patent/US20070038006A1/en not_active Abandoned
  • 2004-07-12 DE DE602004023745T patent/DE602004023745D1/de not_active Expired - Lifetime

Patent Citations (5)

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