GB2271419A - Pure oxygen enhanced furnace firing - Google Patents

Abstract

The invention is the use of pure oxygen to facilitate burning in furnaces. Although there are specific measurements for each and every furnace and flue size, also specific pressures of oxygen. There are also specific mixtures of oxygen and any given fuel, coal, gas, oil or waste materials. All dependant on furnace size and heat output required for individual boilers. Every furnace, flue and chimney bore diameter will be much smaller that with the conventional method of firing. Fuel need of any kind, coal, oil or waste materials are substantially reduced by the use of oxygen comparable to the conventional air pressure method.

Description

FUEL SAVING The use of manufactured pure oxygen to assist the burning of fuel in boiler furnaces.

Oxygen assisted firing of coal or oil or gas or of waste materials in boiler furnaces, and heat furnaces.

This invention relates to oxygen enhanced fuel or fuels to greatly reduce the amount of fuel used for the comparable amount of heat requirement.

Oxygen will burn all fuels with more heat, burn the fuel more completely and burn the fuel cleaner. This cleaner burning with the need for less fuel for the same heat return will substantially reduce the release of pollution into the atmosphere.

Power stations could use much less size of furnace for the same amount of heat, less fuel need, less pollution which may reduce the necessity for smoke scrubbers to come in line with the European pollution legislation.

Oxygen could be transported in or manufactured on site.

The oxygen could be manufactured at one central site to the advantage of all power stations in that area. Oxygen can assist firing and will enhance the energy value and power, of coal, oil, gas and waste materials such as wood waste of all kinds, redundant paper and cardboard waste and most household waste after the separation of all toxic materials, plastics and artificial fibres also the separation of metals, stone and brick materials.

Feeding a furnace with oil or gas maybe fed by separate nozzles or by two pipe lines led into the same nozzle.

The number of feed nozzles required depending on pressure or the heat need at any given time.

Furnace feeding by solid fuel could be by the conveyor feed with separate nozzles feed for oxygen. Alternatively solid materials may be pulverized and fed through nozzles either separate or one feed nozzle in the way oil or gas is fed but with a larger outlet.

A third alternative may be by gravity feed for pulverized materials which would act as vacuum feed. That is the pressure of oxygen would vacuum the granulated coal or waste materials at a rate according to the pressure of oxygen.

If a joint single nozzle is used either for oil, gas, coal or granulated waste the amalgamation may be best just before the point of firing into the furnace.

For granulated coal or waste materials an agitator may be required to keep the granules in a fluid state.

Oxygen assisted fuel, greatly generates more heating power, therefore pure oxygen generates the same heat with the less amount of fuel.

Pure oxygen increases the range of fuels capable of creating enough heat to fire steam boilers or the needs of many heat needed industrial or high volume domestic uses.

Range of fuels to benefit by the addition of oxygen, oil, coal, gas or waste materials such as waste paper, cardboard, sawmill and forestry waste, farming waste such as straw. Most household waste after the separation of toxic materials and metals and stones and bricks.

Oxygen assisted firing gives the possibility of firing with a mix of different fuels, or the participation of different fuels appropriate to times of availability and cost effectiveness.

Smaller furnace need, smaller volume of chimney flue.

Smaller inner chimney volume.

Less need for heat thrust through furnace and flue and chimney.

One or more oxygen feeds depending on how much heat required at given time, or size of furnace.

Claims (1)

1. THE INTRODUCTION OF PURE OXYGEN INTO POWER STATION BOILERS FURNACE OR OTHER HIGH HEAT FURNACES OF INDUSTRIES (HOSPITALS OR OFFICE BLOCKS).

   OXYGEN BOOSTS BY A LARGE DEGREE THE HEAT OTPUT OF ANY FUEL, COAL, OIL, GAS OR WASTE MATERIALS WITH A REDUCED AMOUNT OF FUEL, THUS A GREAT FINANCIAL SAVING ON FUEL COSTS.

   THE REDUCED AMOUNT OF FUEL NEEDED ALSO REDUCES TOXIC FUME DISCHARGE INTO ATMOSPHERE, POSSIBLY REDUCING TOXIC DISCHARGE WITH LEGISLATION, AND REDUCE NEED FOR SMOKE SCRUBBERS.

   THERE CAN BE NO SPECIFIC DRAWINGS OR SPECIFICATIONS, BECAUSE OF THE VAST VARIATION IN SIZE OF POWER PLANT AND INDIVIDUAL PLANT REQUIREMENTS.

   THE GREAT REDUCTION IN THE SIZE OF FURNACES AND FLUES WHICH REDUCES COSTS OF BUILDING AND MAINTENANCE.