http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20220072808-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_539c7b62e076cb0fdea850fcb46926fd |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E20-34 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23L7-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23L7-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23L7-007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F28D21-0003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23G5-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23J1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01D15-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23J15-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23J15-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F23L11-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F23J1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F23J15-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F23J15-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01D15-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F28D21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F23G5-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F23L11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F23L7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B3-02 |
| filingDate | 2022-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fde2a047eab15d0601707f0bcd5419db http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31433969d283fdc49aa5b6518e4a748b |
| publicationDate | 2022-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20220072808-A |
| titleOfInvention | Oxyfuel Coal Boiler Exhaust Gas Treatment Device and Its Operation Method of Power Plant |
| abstract | The present invention relates to an apparatus for treating a combustion chamber exhaust for oxycombustion, in which coal dust, fine dust, sulfur oxides, and carbon dioxide (CO 2 ) are not emitted and oxycombustion is implemented in a coal-fired power plant, and an operating method thereof, As shown in FIG. 1, just before the dust collector under the economizer, (this Invention) A power generator is additionally installed, and the boiler sealing device by the seal trough is replaced with an expansion joint, so that the combustion chamber exhaust is purified while using the main boiler equipment as it is, this exhaust (flue gas) is It is not discharged into the stack, but flows into the exhaust cooler (FIG. 3), the combustion chamber exhaust is cooled with refrigerant R-134a and oxygen, and vapors containing environmental pollutants are pluralized, and CO 2 is reduced to -13°C. Collected by cooling, its exhaust heat is recovered by heat pump technology, circulating water as a working fluid, (8H 2 O+ 2C + 2O 2 = 8H 2 O + 2CO 2 ), and this ascites containing environmental pollutants is ascites It is stored in a storage tank and purified. In the present invention, liquid refrigerant nitrogen is transferred to the refrigerant condenser by a nitrogen low-pressure pump as shown in FIG. 1, and liquid refrigerant oxygen is pressurized to a combustion chamber pressure (5 bar) by the low-pressure pump, Located, the CO 2 cooler and the circulating water preheater are pressurized, and the combustion chamber exhaust introduced into the main exhaust cooler is cooled by the refrigerant R-134a flowing into the tube from the exhaust heat absorber located at the inlet, and this R-134a is heated to 90°C. This inlet exhaust is collected by cooling the steam further in the steam cooler in which the refrigerant oxygen flows into the tube, and then CO 2 is cooled and collected at -13°C in the CO 2 cooler. This R-134a, which absorbed the combustion chamber exhaust heat and raised the temperature to 90 ℃, is compressed to 24 bar and heated to 240 ℃ as shown, then transferred to the circulating water preheater and flowing into the tube, converting the working fluid circulating water to 155 ℃ superheated steam After preheating with a furnace, the temperature is lowered to 80 ℃, and then cooled to 75 ℃ with the liquid refrigerant nitrogen in the refrigerant condenser and liquefied. Then, this R-134a expands to 0.5 bar in the refrigerant evaporator and is cooled to -40 ° C. As before, the exhaust heat absorber cools the exhaust and absorbs the exhaust heat and is recirculated. The (circulating water) circulating steam, which has been preheated with superheated steam in the circulating water preheater and recovered exhaust heat, is preheated to a higher temperature in the circulating steam preheater of the refrigerant nitrogen liquefaction cooling system, shown in FIG. 2, and then newly added under the economizer It is transferred to the installed circulating steam heater, preheated to a higher temperature, recovered exhaust heat, and injected and recirculated into the combustion chamber. Refrigerant nitrogen obtained by cooling and liquefying the refrigerant R-134a moves to the compressed air cooler for oxygen and nitrogen production, cools the compressed air at 210°C, increases the temperature to 190°C, and then moves to the oxygen preheater, 50 in the exhaust cooler As oxygen preheated to ° C flows into the tube of the oxygen preheater, it is preheated to 170 ° C with nitrogen at 190 ° C. It is preheated to a higher temperature in an oxygen heater newly installed below the economizer to recover exhaust heat and inject it into the combustion chamber. In this exhaust cooler, the CO₂ captured at -13℃ is dissolved in the cooling water and seawater and carbonated water in the mixer, and this carbonated water is supplied to the (recently developed) CO₂ production system to produce electricity and hydrogen. Hydrogen is produced, and ammonia (NH₃) is produced from the produced hydrogen and nitrogen used as a refrigerant, and clean energy hydrogen is stored in NH₃, an optimal medium for storage, and 1.5 times more than liquid storage at room temperature. stored at a low pressure of 8.6 bar, contributing to the hydrogen economy. |
| priorityDate | 2022-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.