Integrated system for cement process
(22) 29.02.2024
(43) 12.09.2024
(57) The present invention relates to an integrated system for a cement process, the system comprising a solid oxide electrolysis cell, a first waste heat recovery and vaporization device, and a second waste heat recovery and vaporization device. The first waste heat recovery and vaporization device receives water, and receives a first gas having a first temperature produced in a cement process, produces a first steam flow, and delivers the first steam flow into the second waste heat recovery and vaporization device; the second waste heat recovery and vaporization device receives water, and receives a second gas having a second temperature higher than the first temperature produced in the cement process, produces a second steam flow, performs mixing to produce a third steam flow, and delivers the third steam flow into the electrolsis cell. The electrolysis cell produces hydrogen gas and oxygen gas by means of an electrolysis reaction. The hydrogen gas and oxygen gas produced by the electrolysis reaction act as a green fuel and accelerant of the cement process; the system uses high-temperature waste heat of a cement production process to supply heat to a solid oxide electrolysis cell, which increases energy efficiency of the electrolysis cell and can further enhance energy-saving and carbon-reduction effects in the cement production process.
(71) Siemens Energy (Shenzhen) Co., LTD., Shenzhen, Guangdong (CN)
(84) ARIPO (BW, CV, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
