US 9,810,103 B2
Method and device for generating electrical energy
Alexander Alekseev, Wolfratshausen (DE)
Assigned to LINDE AKTIENGESELLSCHAFT, Munich (DE)
Appl. No. 14/418,566
Filed by LINDE AKTIENGESELLSCHAFT, Munich (DE)
PCT Filed Aug. 1, 2013, PCT No. PCT/EP2013/002297
§ 371(c)(1), (2) Date Jan. 30, 2015,
PCT Pub. No. WO2014/019698, PCT Pub. Date Feb. 6, 2014.
Claims priority of application No. 12005616 (EP), filed on Aug. 2, 2012.
Prior Publication US 2015/0226094 A1, Aug. 13, 2015
Int. Cl. F01K 25/00 (2006.01); F01K 25/08 (2006.01); F02C 6/16 (2006.01); F02C 3/20 (2006.01); F02C 6/14 (2006.01); F02C 3/22 (2006.01); F01K 3/00 (2006.01); F25J 1/00 (2006.01); F25J 1/02 (2006.01); F25J 3/04 (2006.01); F01K 7/16 (2006.01); F01K 23/14 (2006.01); F01K 23/18 (2006.01)
CPC F01K 25/08 (2013.01) [F01K 3/004 (2013.01); F01K 7/16 (2013.01); F01K 23/14 (2013.01); F01K 23/18 (2013.01); F02C 3/20 (2013.01); F02C 3/22 (2013.01); F02C 6/14 (2013.01); F02C 6/16 (2013.01); F25J 1/004 (2013.01); F25J 1/0012 (2013.01); F25J 1/0022 (2013.01); F25J 1/0035 (2013.01); F25J 1/0037 (2013.01); F25J 1/0045 (2013.01); F25J 1/0221 (2013.01); F25J 1/0224 (2013.01); F25J 1/0228 (2013.01); F25J 1/0232 (2013.01); F25J 1/0251 (2013.01); F25J 3/0429 (2013.01); F25J 3/04048 (2013.01); F25J 3/04078 (2013.01); F25J 3/04266 (2013.01); F25J 3/04345 (2013.01); F25J 3/04503 (2013.01); F25J 3/04593 (2013.01); F25J 2205/66 (2013.01); F25J 2210/40 (2013.01); F25J 2210/60 (2013.01); F25J 2210/62 (2013.01); F25J 2215/40 (2013.01); F25J 2235/02 (2013.01); F25J 2240/10 (2013.01); F25J 2240/80 (2013.01); F25J 2240/82 (2013.01); F25J 2240/90 (2013.01); F25J 2245/40 (2013.01); F25J 2270/14 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for generating electrical energy in a system comprising a power plant and an air treatment plant, wherein the power plant has a gas expansion unit, which is connected to a generator for generating the electrical energy, and the air treatment plant has an air compression unit, a heat exchanger system and a liquid tank, said method comprising:
in a first operating mode
in the air treatment plant
compressing a feed air in the air compression unit to form a compressed feed air, and cooling the compressed feed air in the heat exchanger system, to form a compressed and cooled feed air,
producing a storage fluid from the compressed and cooled feed air, and
storing the storage fluid as a cryogenic liquid in the liquid tank,
and in a second operating mode
removing said cryogenic liquid from the liquid tank and vaporizing or pseudo-vaporizing said cryogenic liquid at superatmospheric pressure to generate a gaseous high-pressure storage fluid, and expanding said gaseous high-pressure storage fluid in the gas expansion unit, and
wherein, in the second operating mode, said method further comprises:
introducing a gaseous natural gas into the heat exchanger system, where said gaseous natural gas is liquefied or pseudo-liquefied, and
wherein the vaporizing or pseudo-vaporizing of said cryogenic liquid is carried out in the heat exchanger system.