Method for improving purity of decarbonized hydrogen
A decarbonized hydrogen and purity technology, applied in the field of improving the purity of decarbonized hydrogen, can solve the problems of low safety, by-product formation, unfavorable interests, etc., and achieve the effect of satisfying interests and improving purity
Inactive Publication Date: 2018-06-08
ANHUI HAOYUAN CHEM IND GRP
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[0002] At normal temperature and pressure, hydrogen is an extremely flammable, colorless, transparent, odorless and tasteless gas. Hydrogen is the gas with the lowest density known in the world. The density of hydrogen is only 1 / 14 of that of air, that is, at 0°C , under a standard atmospheric pressure, the density of hydrogen is 0.0899g / L, so hydrogen can be used as the filling gas of airships and hydrogen balloons (due to the flammability of hydrogen, the safety is not high, airships are often filled with helium), but hydrogen is used in the preparation During the process, many impurities will be mixed, and the existing purification technology is complex, and by-products will be generated during the purification process, which is not conducive to the interests of the enterprise itself. Therefore, we propose a method to improve the purity of decarbonized hydrogen
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] see figure 1 , a method for improving the purity of decarburized hydrogen, the method may further comprise the steps:
[0026] A. Compression;
[0027] B. In addition to steaming and degreasing;
[0028] C. Membrane separation;
[0029] D. Catalytic reaction deoxidation;
[0030] E. Vacuum pressure swing adsorption;
[0031] F. Removal of chlorine and chloramines through a first purification unit comprising a reducing agent solution;
[0032] G. A...
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The invention discloses a method for improving the purity of decarbonized hydrogen. The method comprises the following steps: A, performing compression; B, removing steam and removing oil; C, performing membrane separation; D, performing catalytic deoxygenation; E, performing vacuum pressure swing adsorption; F, removing chlorine and chloramines through a first purification unit containing a reducing agent solution; G, removing ammonia through a second purification unit containing an acid solution; and H, removing acid through a third purification unit containing water, wherein steam removal and oil removal comprise a filtering plate, and the filtering plate consists of polypropylene fiber, jute fiber, apocynum venetum fiber, tea fiber, aloe fiber, oil-absorbing resin, dodecyl dimethyl benzyl ammonium chloride, coconut oil, boric acid and a composite modifier. By the method, the purity of the decarbonized hydrogen can be effectively improved; furthermore, byproducts are not generated in the whole process flow, the purification process of the hydrogen is more efficient, environmentally friendly and energy-saving, and the own benefit of the enterprise is met; meanwhile, the nationalenergy-saving and emission-reducing requirements are met.
Description
technical field [0001] The invention relates to the technical field of hydrogen purification, in particular to a method for improving the purity of decarburized hydrogen. Background technique [0002] At normal temperature and pressure, hydrogen is an extremely flammable, colorless, transparent, odorless and tasteless gas. Hydrogen is the gas with the lowest density known in the world. The density of hydrogen is only 1 / 14 of that of air, that is, at 0 °C , under a standard atmospheric pressure, the density of hydrogen is 0.0899g / L, so hydrogen can be used as the filling gas of airships and hydrogen balloons (due to the flammability of hydrogen, the safety is not high, airships are often filled with helium), but hydrogen is used in the preparation During the process, many impurities will be mixed, and the existing purification technology is complicated, and by-products will be generated during the purification process, which is not conducive to the interests of the enterprise...
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Login to View More IPC IPC(8): B01D53/14B01D53/047B01D53/00B01D39/14B01D46/10
CPCB01D39/14B01D46/10B01D53/00B01D53/002B01D53/0476B01D53/1487B01D2256/16B01D2257/304B01D2257/404B01D2257/406B01D2257/408B01D2257/504B01D2257/702Y02C20/40
Inventor 凡殿才张超梅树美郭学法
Owner ANHUI HAOYUAN CHEM IND GRP