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US 12,330,938 B2Granted
NG pyrolysis system and method for controlling same
AssigneesHyundai Motor Company, Kia Corporation
InventorHan Eol Song
Life of this patent
Estimating the term…
Abstract
A cooler installed to cool NG supplied from a compressor to a pyrolysis reactor and configured to independently use multiple refrigerants is provided; a first refrigerant supply device provided to supply a first refrigerant for the cooler; and a second refrigerant supply device configured to supply, to the cooler, a fuel gas for a burner, including an off-gas and NG which has not passed through the compressor, as a second refrigerant for the cooler.
Claims10
A natural gas pyrolysis system comprising:
- a cooler installed to cool NG supplied from a compressor to a pyrolysis reactor and configured to independently use multiple refrigerants;
- a first refrigerant supply device configured to supply a first refrigerant for the cooler;
- and
- a second refrigerant supply device configured to supply, to the cooler, a fuel gas for a burner, comprising an off-gas and/or NG which has not passed through the compressor, as a second refrigerant for the cooler.
1 more element
A NG pyrolysis system control method comprising:
- performing control in a predetermined first operation mode, when starting a NG pyrolysis system, in which only cooling water and NG are supplied as a refrigerant for cooling a cooler until a burner and a pyrolysis reactor operate and a pressure swing absorption (PSA) starts to discharge an off-gas;
- performing control in a predetermined second operation mode, when the PSA starts to discharge the off-gas, in which the off-gas is supplied to the cooler as much as possible, and cooling water supplied to the cooler is correspondingly reduced;
- and
- performing control in a predetermined third operation mode, during a rated operation of the pyrolysis reactor, in which the cooling water, the NG, and the off-gas supplied to the cooler are supplied based on a predetermined rated cooling load allocation ratio.
1 more element
Dependencies are inferred from the claim text.