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Применить Всего найдено 4. Отображено 4.
06-07-2011 дата публикации

Method for liquefying natural gas through double-expansion of high-temperature and low-temperature nitrogen gas

Номер: CN0101614464B
Автор: SHUIFU GE, HAOHUA GE, HAOJUN GE, ZHIJUN REN, FENGMING LI, JINLIE FENG, YANHONG HONG, JIALIN RUAN, LIGUO XU, YUNHUA XIANG, JILIN JIANG, XIAOWEN HUANG, SHUGUANG TIAN, HAIDA CHEN, RONG HUANG, LONG CHEN, FAJUN YU, GE SHUIFU, GE HAOHUA, GE HAOJUN, REN ZHIJUN, LI FENGMING, FENG JINLIE, HONG YANHONG, RUAN JIALIN, XU LIGUO, XIANG YUNHUA, JIANG JILIN, HUANG XIAOWEN, TIAN SHUGUANG, CHEN HAIDA, HUANG RONG, CHEN LONG, YU FAJUN
Принадлежит:

The invention discloses a method for liquefying natural gas through double-expansion of high-temperature and low-temperature nitrogen gas, which comprises the followings steps: pressurizing and cooling the nitrogen gas to obtain high-pressure nitrogen gas of 2.2 to 3.6 MPa; introducing the high-pressure nitrogen gas and raw natural gas into a main heat exchanger so that the gas is cooled to a temperature of between 70 DEG C below zero and 30 DEG C below zero by using low-pressure nitrogen gas at the outlet of a low-temperature expander, then extracting one stream of the cooled gas and introducing the cooled gas into a high-temperature expander for expansion refrigeration, and then returning the gas to a position of which the temperature is between 100 DEG C below zero and 80 DEG C below zero in the main heat exchanger; and continuously cooling the other stream of the gas to a temperature of between 110 DEG C below zero and 70 DEG C below zero, then introducing the gas into the low-temperature ...

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Номер записи: 1
30-12-2009 дата публикации

Method for liquefying natural gas through double-expansion of high-temperature and low-temperature nitrogen gas

Номер: CN0101614464A
Автор: SHUIFU GE, HAOHUA GE, HAOJUN GE, ZHIJUN REN, FENGMING LI, JINLIE FENG, YANHONG HONG, JIALIN RUAN, LIGUO XU, YUNHUA XIANG, JILIN JIANG, XIAOWEN HUANG, SHUGUANG TIAN, HAIDA CHEN, RONG HUANG, LONG CHEN, FAJUN YU, GE SHUIFU, GE HAOHUA, GE HAOJUN, REN ZHIJUN, LI FENGMING, FENG JINLIE, HONG YANHONG, RUAN JIALIN, XU LIGUO, XIANG YUNHUA, JIANG JILIN, HUANG XIAOWEN, TIAN SHUGUANG, CHEN HAIDA, HUANG RONG, CHEN LONG, YU FAJUN
Принадлежит:

The invention discloses a method for liquefying natural gas through double-expansion of high-temperature and low-temperature nitrogen gas, which comprises the followings steps: pressurizing and cooling the nitrogen gas to obtain high-pressure nitrogen gas of 2.2 to 3.6 MPa; introducing the high-pressure nitrogen gas and raw natural gas into a main heat exchanger so that the gas is cooled to a temperature of between 70 DEG C below zero and 30 DEG C below zero by using low-pressure nitrogen gas at the outlet of a low-temperature expander, then extracting one stream of the cooled gas and introducing the cooled gas into a high-temperature expander for expansion refrigeration, and then returning the gas to a position of which the temperature is between 100 DEG C below zero and 80 DEG C below zero in the main heat exchanger; and continuously cooling the other stream of the gas to a temperature of between 110 DEG C below zero and 70 DEG C below zero, then introducing the gas into the low-temperature ...

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Номер записи: 2
17-08-2011 дата публикации

Method for liquefying high-low pressure nitrogen double-expansion natural gas

Номер: CN0101608859B
Автор: SHUIFU GE, HAOHUA GE, HAOJUN GE, ZHIJUN REN, FENGMING LI, JINLIE FENG, YANHONG HONG, JIALIN RUAN, LIGUO XU, YUNHUA XIANG, JILIN JIANG, XIAOWEN HUANG, SHUGUANG TIAN, HAIDA CHEN, RONG HUANG, LONG CHEN, FAJUN YU, GE SHUIFU, GE HAOHUA, GE HAOJUN, REN ZHIJUN, LI FENGMING, FENG JINLIE, HONG YANHONG, RUAN JIALIN, XU LIGUO, XIANG YUNHUA, JIANG JILIN, HUANG XIAOWEN, TIAN SHUGUANG, CHEN HAIDA, HUANG RONG, CHEN LONG, YU FAJUN
Принадлежит:

The invention discloses a method for liquefying high-low pressure nitrogen double-expansion natural gas, which comprises the following steps: compressing and cooling nitrogen gas, and then introducing the nitrogen gas into the pressurizing end of a low-pressure pressurizing machine for pressurization; after cooling the nitrogen gas to a temperature of between 30 and 45 DEG C by a second after cooler, introducing the nitrogen gas into the pressurizing end of a high-pressure pressurizing machine to obtain high-pressure nitrogen gas which is cooled to a temperature of between 30 and 45 DEG C by a first after cooler; introducing the cooled high-pressure nitrogen gas into a main heat exchanger, cooling the nitrogen gas and raw natural gas to a temperature of 70 DEG C below zero and 30 DEG C below zero by the low-pressure nitrogen gas at the outlet of a low-pressure expander, taking out a current of the nitrogen gas which is introduced into a high-pressure expander for expansion refrigeration ...

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Номер записи: 3
23-12-2009 дата публикации

Method for liquefying high-low pressure nitrogen double-expansion natural gas

Номер: CN0101608859A
Автор: SHUIFU GE, HAOHUA GE, HAOJUN GE, ZHIJUN REN, FENGMING LI, JINLIE FENG, YANHONG HONG, JIALIN RUAN, LIGUO XU, YUNHUA XIANG, JILIN JIANG, XIAOWEN HUANG, SHUGUANG TIAN, HAIDA CHEN, RONG HUANG, LONG CHEN, FAJUN YU, GE SHUIFU, GE HAOHUA, GE HAOJUN, REN ZHIJUN, LI FENGMING, FENG JINLIE, HONG YANHONG, RUAN JIALIN, XU LIGUO, XIANG YUNHUA, JIANG JILIN, HUANG XIAOWEN, TIAN SHUGUANG, CHEN HAIDA, HUANG RONG, CHEN LONG, YU FAJUN
Принадлежит:

The invention discloses a method for liquefying high-low pressure nitrogen double-expansion natural gas, which comprises the following steps: compressing and cooling nitrogen gas, and then introducing the nitrogen gas into the pressurizing end of a low-pressure pressurizing machine for pressurization; after cooling the nitrogen gas to a temperature of between 30 and 45 DEG C by a second after cooler, introducing the nitrogen gas into the pressurizing end of a high-pressure pressurizing machine to obtain high-pressure nitrogen gas which is cooled to a temperature of between 30 and 45 DEG C by a first after cooler; introducing the cooled high-pressure nitrogen gas into a main heat exchanger, cooling the nitrogen gas and raw natural gas to a temperature of 70 DEG C below zero and 30 DEG C below zero by the low-pressure nitrogen gas at the outlet of a low-pressure expander, taking out a current of the nitrogen gas which is introduced into a high-pressure expander for expansion refrigeration ...

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Номер записи: 4