Title:
LIQUEFACTION NATURAL GAS MANUFACTURING DEVICE AND LIQUEFACTION NATURAL GAS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2016090138
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing device and a manufacturing method capable of attaining high purity LNG when liquefaction natural gas [LNG] with synthetic natural gas [SNG] synthesized from coke oven gas [COG] being applied as raw material.SOLUTION: This invention relates to a device for manufacturing liquefaction natural gas from raw material gas originated from synthetic natural gas synthesized from coke oven gas comprising: a cooling means for cooling raw material gas until at least a part of the raw material gas is liquefied; a rectification column for rectifying raw material gas at least a part of which is liquefied by the cooling means; a condenser for cooling distillated gas out of a top part of the rectification column, liquefying a part of the gas, discharging residual gas and returning the generated liquefaction component to the rectification column with liquid nitrogen being applied as refrigerant; and a control means for controlling a liquid surface position of refrigerant in the condenser during rectification at the rectification column. This invention also relates to a process of manufacture of liquefaction natural gas using the manufacturing device.SELECTED DRAWING: Figure 1
Inventors:
SATO KAZUYUKI
GODA REONA
SUENAGA JUNYA
GODA REONA
SUENAGA JUNYA
Application Number:
JP2014225132A
Publication Date:
May 23, 2016
Filing Date:
November 05, 2014
Export Citation:
Assignee:
AIR WATER INC
International Classes:
F25J3/02; C10L3/10; F25J3/06; F25J3/08
Domestic Patent References:
JP2011236378A | 2011-11-24 | |||
JPS63169470A | 1988-07-13 | |||
JP2010275215A | 2010-12-09 | |||
JP2013036676A | 2013-02-21 | |||
JPS46033209B1 |
Foreign References:
CN102277215A | 2011-12-14 | |||
US4230469A | 1980-10-28 |
Attorney, Agent or Firm:
Fukami patent office
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