Removal of hydrogen sulfide from process streams
First Claim
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1. A process for removing H2S from a gas stream containing H2S, the process comprising(i) assessing the O2/H2S molar ratio in the H2S containing gas stream to determine if the O2/H2S molar ratio is less than about 1.5;
- (ii) mixing air or oxygen into the H2S containing gas stream at a rate to achieve an O2/H2S molar ratio equal to or greater than about 1.5, if the measured O2/H2S molar ratio is less than about 1.5;
(iii) assessing the relative humidity of the H2S containing gas stream to determine if the relative humidity is equal to or greater than about 50%;
(iv) reducing the relative humidity of the H2S gas stream to less than about 50%, if the measured relative humidity is greater than 50%; and
subsequently(v) contacting the H2S containing gas stream with a porous amorphous solid mixed metal oxy-hydroxide H2S removal media comprising copper and iron.
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Abstract
Disclosed are processes for gas streams containing H2S, the processes comprise contacting the gas streams with a mixed metal oxy-hydroxide media comprising two or more metals selected from the group consisting of iron, copper and silicon.
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Citations
8 Claims
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1. A process for removing H2S from a gas stream containing H2S, the process comprising
(i) assessing the O2/H2S molar ratio in the H2S containing gas stream to determine if the O2/H2S molar ratio is less than about 1.5; -
(ii) mixing air or oxygen into the H2S containing gas stream at a rate to achieve an O2/H2S molar ratio equal to or greater than about 1.5, if the measured O2/H2S molar ratio is less than about 1.5; (iii) assessing the relative humidity of the H2S containing gas stream to determine if the relative humidity is equal to or greater than about 50%; (iv) reducing the relative humidity of the H2S gas stream to less than about 50%, if the measured relative humidity is greater than 50%; and
subsequently(v) contacting the H2S containing gas stream with a porous amorphous solid mixed metal oxy-hydroxide H2S removal media comprising copper and iron. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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Current AssigneeGuild Associates Incorporated
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Original AssigneeGuild Associates Incorporated
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InventorsRossin, Joe
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Primary Examiner(s)Berns, Daniel
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Application NumberUS16/251,643Publication NumberTime in Patent Office473 DaysField of SearchNoneUS Class CurrentCPC Class CodesB01D 2251/604 HydroxidesB01D 2253/112 Metals or metal compounds n...B01D 2253/1124 Metal oxidesB01D 2256/245 MethaneB01D 2257/304 Hydrogen sulfideB01D 2258/05 BiogasB01D 51/10 Conditioning the gas to be ...B01D 53/02 by adsorption, e.g. prepara...B01D 53/0454 Controlling adsorption cont...B01D 53/346 Controlling the processB01D 53/52 Hydrogen sulfideB01D 53/82 with stationary reactantsB01D 53/96 Regeneration, reactivation ...Y02E 50/30 Fuel from waste, e.g. synth...
