System of utilizing liquid nitrogen wash to produce syngas for synthetic ammonia and LNG
A technology for raw material gas and synthetic ammonia is applied in the field of systems for producing synthetic ammonia raw material gas and LNG, which can solve the problems of shortage, large amount of time and energy, and achieve the effect of ensuring stable operation.
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[0022] Such as figure 1 As shown, the system for preparing synthetic ammonia feed gas and LNG by washing with liquid nitrogen of the present invention includes:
[0023] The first heat exchanger E1 used to initially cool the raw gas is connected to the raw gas source through a pipeline;
[0024] The second heat exchanger E2 for cooling the raw material gas that has been initially cooled down again is connected to the first heat exchanger E1 through a pipeline;
[0025] The dehydrogenation tower T1 for dehydrogenating and gas-liquid separation of the feed gas after cooling again is connected to the second heat exchanger E2 through a pipeline;
[0026] The nitrogen scrubbing tower T2 for nitrogen scrubbing the gas phase separated from the raw material gas and discharging nitrogen and hydrogen is connected to the gas phase outlet of the dehydrogenation tower T1 through a pipeline;
[0027] The liquid phase separated from the feed gas and the liquid phase discharged from the nitrogen scrub...
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