FIELD: power industry.
SUBSTANCE: method involves preliminary charging of inert material, for example sand or chamotte to furnace. Then, natural zeolite (clinoptilolite consisting of (Na2K2)·O-Al2O3·10·SiO2·8H2O) is added to inert material in quantity of 18-22% of volume of inert material. In order to compensate for losses of zeolite, periodic addition of zeolite (one time in 2-3 days) is performed to furnace in quantity determined as per the following formula: 
where: MC - weight of added zeolite, kg; MF - weight of fuel burnt in the boiler of the previous zeolite addition; 
- necessary SO2 concentration level supported by using the method, ppm; 
- SO2 concentration when zeolite is absent, ppm; 
- stable SO2 concentration at which further increase of zeolite content does not lead to noticeable reduction of sulphur oxides, ppm; SR - reduced sulphur content, % kg/GJ.
EFFECT: reducing hazardous emissions of sulphur oxides during coal combustion in fluidised bed boilers.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REDUCTION OF HAZARDOUS EMISSIONS FROM BURNERS WITH FLAME COMBUSTION | 2012 |
|
RU2490318C1 |
| ADDITIVE TO BROWN COALS FOR TORCH BURNING IN FURNACES OF POWER-GENERATING BOILERS | 1992 |
|
RU2057165C1 |
| COMBUSTION METHOD OF CAVITATION WATER-COAL FUEL IN INERT MATERIAL FLUIDISED BED FURNACE, WHICH REDUCES FORMATION OF EMISSIONS OF NITROGEN AND SULPHUR OXIDES | 2013 |
|
RU2546351C2 |
| METHOD OF PREPARING AND BURNING SOLID FUEL | 2004 |
|
RU2270957C1 |
| DOUBLE-COMPONENT SOLID FUEL | 2001 |
|
RU2186093C1 |
| SYSTEM AND METHOD OF AUTOMATIC CONTROL AND MONITORING OF A BOILER UNIT OPERATING ON GASEOUS FUEL | 2020 |
|
RU2745181C1 |
| METHOD AND DEVICE FOR BURNING GROUND COAL | 1995 |
|
RU2078283C1 |
| METHOD OF PROCESSING SOLID FUEL | 1994 |
|
RU2095397C1 |
| METHOD FOR DESULFURIZATION OF COMBUSTION PRODUCTS WHEN BURNING HIGH- SULFUR FUELS IN HEARTH OF BOILER OR FURNACE | 1994 |
|
RU2079543C1 |
| BOILER | 2000 |
|
RU2190155C2 |
