Novel process for making synthetic natural gas by using coke-oven gas
A technology for synthesizing natural gas and coke oven gas
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Embodiment 1
[0038] The process method for preparing synthetic natural gas using coke oven gas in the present embodiment is as follows, and the schematic flow diagram is shown in figure 1 .
[0039] The coke oven gas treated by conventional purification methods (referring to the treatment of detar, crude desulfurization, deamination, benzene debenzene removal, final naphthalene removal, etc., the same below) is mixed with carbon supplementary gas, and the mixed gas composition (v% ): H 2 54.04, CO 13.14, CO 23.07, CH 4 24.22, C 2 H 4 2.10, N 2 3.03, O 2 0.28, H 2 O 0.12, H 2 S25ppm, COS 12ppm; the gas temperature reaches 250℃ after heat exchange and enters the Co-Mo hydrogenation reactor. 3 11~13%wt, the rest is carrier γ-Al 2 O 3 ) converts organic sulfur into inorganic sulfur, and at the same time hydrogenates unsaturated hydrocarbons into alkanes, a small amount of O 2 with H 2 It reacts (produces water) and completes partial methanation, and then enters the desulfuri...
Embodiment 2
[0043] The process method for preparing synthetic natural gas using coke oven gas in the present embodiment is as follows, and the schematic flow diagram is shown in figure 1 .
[0044] The coke oven gas treated by the conventional purification method is mixed with the carbon supplement gas, and the mixed gas composition (v%): H 2 54.05, CO 13.14, CO 2 3.07, CH 4 24.22, C 2 H 4 2.10, N 2 3.03, O 2 0.28, H 2 O0.11, H 2 S 25ppm, COS 12ppm; the gas temperature reaches 255 ℃ after heat exchange and enters the Co-Mo hydrogenation reactor, where the Co-Mo hydrogenation conversion catalyst (active components: CoO 3~4%wt, MoO 3 11~13%wt, the rest is carrier γ-Al 2 O 3 ) converts organic sulfur into inorganic sulfur, and at the same time hydrogenates unsaturated hydrocarbons into alkanes, a small amount of O 2 with H 2 It reacts (produces water) and completes partial methanation, and then enters the desulfurization reactor to remove inorganic sulfur under the action ...
Embodiment 3
[0047] The process method for preparing synthetic natural gas using coke oven gas in the present embodiment is as follows, and the schematic flow diagram is shown in figure 2 .
[0048] Coke oven gas treated by conventional purification methods, gas composition (v%): H 2 58.72, CO 7.29, CO 2 2.30, CH 4 25.56, C 2 H 4 2.10, N 2 3.50, O 2 0.40, H 2 O 0.13, H 2 S 53ppm, COS 27ppm: the gas temperature reaches 250 ℃ after heat exchange and enters the Co-Mo hydrogenation reactor, where the Co-Mo hydrogenation conversion catalyst (active components: CoO 3~4%wt, MoO 3 11~13%wt, the rest is carrier γ-Al 2 O 3 ) converts organic sulfur into inorganic sulfur, and at the same time hydrogenates unsaturated hydrocarbons into alkanes, a small amount of O2 with H 2 It reacts (produces water) and completes partial methanation, and then enters the desulfurization reactor to remove inorganic sulfur under the action of iron-manganese desulfurizer. Gas composition (v%): H 2 56....
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