TH1007B - Process for removing hydrogen The sulfides are released from the gas mixed with secandary amino compounds, which are highly sterile hinder. - Google Patents

Abstract

Selective removal of H2S from normal gas mixtures containing H2S and CO2 by contact with the gas mixture with an absorbent solution containing high steridhinder secanderi amino compounds is of value. Total -Es (Tuft's steric hindrans constant) is higher than about 1.75, which selectively removes H2S from the mixture.

Claims (3)

1. The process of removing H2S from normal mixed gases containing H2S and CO2, which consists of the normal mixing gas in contact with each substance. The pattern of amino compounds consisting of secandary aminohol Halls with a high sterichinder has the total -Es (the sterichindae constant). Tufts) is approximately 1.75 higher under conditions in which H2S is extracted from the above-mentioned mixtures. 2. Process of claim 1, in which the suction solution Contains additional water, physical suckers, or mixtures of these substances 3. Procedure of claim 2, where the total amino-alcohol concentrations in the solution range from approximately 0.1 to approximately 6 Mo. 4. The process of claim 2. The amino concentration. The total alcohol in the solution ranges from approximately 1 to approximately 4 mol / liter. 5. Procedures of claim 1, in which the suction solution is To be returned by heating and removal (stripping). 6. Process of claim Article 5, which the contact is made. At temperatures ranging from approximately 20 degrees to 100 degrees and pressures in the range from 5 to 2000 psia absolute (psia), and the regenerate stage was performed at temperatures in the range from approximately 50. Degrees to 170 degrees Celsius and the pressure ranges from 1 to 50 pounds per inch absolute. 7. The process of claim 5, in which the exposure stage is made. At temperatures ranging from approximately 40 degrees to 60 degrees and pressures in the range from 20 to 1500 psia absolute (psia), and the regenerate stage was performed at temperatures in the range from approximately 80. Degrees to 120 degrees Celsius and the pressure ranges from 15 to 30 pounds per square inch absolute 8. Method of claim 1, in which the amino alcohol Definitions with a general formula: (chemical formula) 9. The process of claim Article 8 in which the amino-alcohol hall Select from a group consisting of tercierbutylaminoethanol (chemical formula) 1 0. Procedure for claim 1 or 8 in which the solution There is also a filler which is selected from the group containing the additive. Anti-foaming, anti-oxidizing agent and anti-corrosion agent 1 1. Method for the selective removal of H2S from normal mixed gases containing H2S and CO2, consisting of: (Chemical formula) Clause 12. - 1 4. Procedure for claim 11, in which the solution contains a filler, selected from the group containing the substance. Anti foaming Anti-oxidizing agents And corrosion inhibitors 1 5. Scrubbing solution for the selection of H2S extraction from normal mixed gases containing H2S and CO2 consisting of: (Chemical formula) Clause 16. - 2 0. Solution of Clause 17. The concentrations of the solvent, which are physically suction, range from approximately 0.1 to 5 mol per liter of total solution 2. 1. The process of selecting H2S extraction from normal mixed gases containing H2S and CO2 which consists of the aforementioned normal mixed gas delivery. In contact with suction solution containing mixture of (chemical formula) 2 2. Process of claim No. 21 in which other amino compounds As already mentioned, methyl diethanolamine 2. 3. The process of removing H2S from the normal gas stream which contains gas As already mentioned, it contains the said gas tank in contact with the substance. Solvent for suction consisting of secandary amino alcohols With a high-streak hinde -Es total (the strikhindae constant Taft's franchise) is approximately 1.75 higher (23 claims, 4 pages, 4 photos).