Externally heated medium and high pressure process and apparatus for synthesizing material ammonia with methanol and methane
A raw material gas, chemical synthesis technology, applied in the production of hydrogen and other directions, can solve the problems of a large increase in the amount of synthetic ammonia gas, incomplete purification of the raw material gas, and an increase in the amount of ammonia gas released, so as to achieve good catalyst protection and large production capacity. , the effect of high alcohol to ammonia ratio
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Embodiment 1
[0037] refer to figure 1 , Image 6 , a kind of external heating type, high-pressure methanol, methanation synthetic ammonia raw material gas production method, the steps of the method include:
[0038] (1), medium-pressure co-alcohol: take medium-pressure co-alcohol for the raw material gas, the medium pressure is 10-12Mpa, and the synthesis gas mainly includes nitrogen, hydrogen, carbon monoxide and carbon dioxide;
[0039] (2) Compression: compress the outlet gas of the alcohol unit, and the high pressure is ~ 30Mpa;
[0040] (3), high-pressure methanolylation: at low space velocity ~ 6000h -1 1. Under the condition of high pressure of ~ 30Mpa, methanol is synthesized in a high-pressure methanol synthesis tower, passed into a methanol separator for separation, and methanol is produced and the raw gas is initially refined;
[0041] (4) High-pressure methanation: the post-alcohol gas is passed into the primary inlet of the high-pressure methanation tower, the primary outle...
Embodiment 2
[0051] refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , an external heating type medium and high-pressure methanol and methanation ammonia synthesis device, the device includes medium-pressure alcohol-linking equipment, high-pressure machine, high-pressure methanolization equipment, high-pressure methanation equipment, ammonia synthesis equipment, and the high-pressure methane The conversion device comprises a methanation tower (A), an external heat exchanger (B), and a heater (C), and the primary outlet of the high-pressure methanation tower (A) is connected to the external heat exchanger (B), the heater (C), the gas outlet of the heater (C) is connected to the secondary inlet of the high-pressure methanation tower.
[0052] refer to Image 6 The high-pressure methanation equipment also includes a water cooler (D), an ammonia cooler (E), and a gas-water separator (F), and the secondary outlet of the methanation tower (A) is sequentially conn...
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