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US3897219A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for the removal of hydrogen sulfide and mercaptans from liquid and gaseous streams

Assignee: Ari Technologies Inc
•
Filing: 1973-01-29
•
Granted: 1975-07-29
•
Expires: 1993-01-29
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Abstract

Abstract A contactor defining a substantially cylindrical reaction chamber; a gas feed inlet at the bottom of the reaction chamber; a liquid aqueous catalyst solution inlet at the bottom of the reaction chamber; means for forming an intimate unstable dispersion short of foam formation of gaseous oxygen, hydrogen sulfide, and alkyl mercaptans entering via the gas feed inlet in liquid aqueous catalyst solution and for passing the dispersion in turbulent flow concurrently upwardly through the reaction chamber; and a gas separator for reception of dispersion from the reaction chamber and defining a substantially cylindrical gas separation chamber directly above the reaction chamber, coextensive therewith in a central portion and having a peripheral portion extending circumferentially about and beyond the peripheral portion of the reaction chamber, the gas separation chamber having an overall diameter larger than the diameter of the reaction chamber and exposing a relatively large surface area of dispersion to a gas layer thereabove within the gas separation chamber to facilitate breaking of the dispersion into a lower liquid layer and separation of gas therefrom, the gas separator having in an upper portion a gas outlet for removal of the gas in the gas layer and, at or below the level of the liquid layer, a liquid outlet for liquid aqueous catalyst solution containing sulfur and dialkyl disulfides, and means for maintaining a liquid level within the gas separation chamber and thereby within the reaction chamber by overflow; the ratio of the diameter of the reaction chamber to the diameter of the gas separator chamber being within the range from about 1:1.2 to about 1:20, expressed in metric units, the length of the reaction chamber being within the range from about 2 feet to about 20 feet, and the diameter of the reaction chamber being within the range from about 4 inches to about 40 feet, the ratio of diameter to height of the gas separation chamber being within the range from about 60:1 to about 1:1, the height of the gas separation chamber being within the range from about 2 inches to about 10 feet, and the diameter of the gas separation chamber being within the range from about 5 inches to about 60 feet.

Inventors

  • 👤 Jacques Pierre Sibeud
  • 👤 Charles David Ruff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/725; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/05

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 277 words
AN APPARATUS FOR THE CAPTURE OF HYDROGEN SULFIDE AND ALKYL MERCAPTANS IN GASEOUS STREAMS, AND THE CATALYTIC CONVERSION THEREOF TO SULFUR AND DIALKYL DISULFDES, RESPECTIVELY, COMPRISING, IN COMBINATION, A CONTACTOR DEFINING A SUBSTANTIALLY CYLINDRICAL ELONGATED REACTION CHAMBER, A GAS FEED INLET AT THE BOTTOM OF THE REACTION CHAMBER, A LIQUID AQUEOUS CARALYST SOLUTION INLET AT THE BOTTOM OF THE REACTION CHAMBER, MEANS FOR FORMING AN INTIMATE UNSTABLE DISPERSION SHORT OF FOAM FORMATION OF GASEOUS OXYGEN, HYDROGEN SULFIDE, AND ALKYL MERCAPTANS ENTERING VIA THE GAS FEED INLET IN LIQUID AQUEOUS CATALYST SOLUTION AND FOR PASSING THE DISPERSION IN TURBULENT FLOW COCURRENTLY UPWARDLY THROUGH THE REACTION CHAMBER, AND A GAS SEPARATOR FOR RECEPTION OF DISPERSION FROM THE REACTION CHAMBER AND DEFINING A SUBSTANTIALLY CYLINDRICAL GAS SEPARATION CHAMBER DIRECTLY ABOVE THE REACTION CHAMBER, COEXTENSIVE THEREWITH IN A CENTRAL PORTION AND HAVING A PERIPHERAL PORTION EXTENDING CIRCUMFERENTIALLY ABOUT AND BEYOND THE PERIPHERAL PORTION OF THE REACTION CHAMBER, THE GAS SEPERATION CHAMBER HAVING AN OVERALL DIAMETER LARGER THAN THE DIAMETER OF THE REACTION CHAMBER AND EXPOSING A RELATIVELY LARGE SURFACE AREA OF DISPERSION TO A GAS LAYER THEREABOVE WITHIN THE GASS SEPARATION CHAMBER TO FACILITATE BREAKING OF THE DISPERSION INTO A LOWER LIQUID LAYER AND A SEPARATION OF GAS THEREFROM, THE GAS SEPARATOR HAVING IN AN UPPER PORTION A GAS OUTLET FOR REMOVAL OF THE GAS IN THE GAS LAYER AND, AT OR BELOW THE LEVEL OF THE LIQUID LAYER, A LIQUID OUTLET FOR LIQUID AQUEOUS CATALYST SOLUTION CONTAINING SULFUR AND DIALKYL DISULFIDES, A CONDUIT EXTENDING AXIALLY FROM THE GAS SEPARATOR CHAMBER THROUGH THE ELONGATED REACTION CHAMBER TOWARD THE INLET END OF THE REACTION CHAMBER, AND ADAPTED TO CARRY LIQUID CATALYST SOLUTION
Claim 2
Independent Claim 277 words
AN APPARATUS FOR THE CAPTURE OF HYDROGEN SULFIDE AND ALKYL MERCAPTANS IN GASEOUS STREAMS, AND THE CATALYTIC CONVERSION THEREOF TO SULFUR AND DIALKYL DISULFDES, RESPECTIVELY, COMPRISING, IN COMBINATION, A CONTACTOR DEFINING A SUBSTANTIALLY CYLINDRICAL ELONGATED REACTION CHAMBER, A GAS FEED INLET AT THE BOTTOM OF THE REACTION CHAMBER, A LIQUID AQUEOUS CARALYST SOLUTION INLET AT THE BOTTOM OF THE REACTION CHAMBER, MEANS FOR FORMING AN INTIMATE UNSTABLE DISPERSION SHORT OF FOAM FORMATION OF GASEOUS OXYGEN, HYDROGEN SULFIDE, AND ALKYL MERCAPTANS ENTERING VIA THE GAS FEED INLET IN LIQUID AQUEOUS CATALYST SOLUTION AND FOR PASSING THE DISPERSION IN TURBULENT FLOW COCURRENTLY UPWARDLY THROUGH THE REACTION CHAMBER, AND A GAS SEPARATOR FOR RECEPTION OF DISPERSION FROM THE REACTION CHAMBER AND DEFINING A SUBSTANTIALLY CYLINDRICAL GAS SEPARATION CHAMBER DIRECTLY ABOVE THE REACTION CHAMBER, COEXTENSIVE THEREWITH IN A CENTRAL PORTION AND HAVING A PERIPHERAL PORTION EXTENDING CIRCUMFERENTIALLY ABOUT AND BEYOND THE PERIPHERAL PORTION OF THE REACTION CHAMBER, THE GAS SEPERATION CHAMBER HAVING AN OVERALL DIAMETER LARGER THAN THE DIAMETER OF THE REACTION CHAMBER AND EXPOSING A RELATIVELY LARGE SURFACE AREA OF DISPERSION TO A GAS LAYER THEREABOVE WITHIN THE GASS SEPARATION CHAMBER TO FACILITATE BREAKING OF THE DISPERSION INTO A LOWER LIQUID LAYER AND A SEPARATION OF GAS THEREFROM, THE GAS SEPARATOR HAVING IN AN UPPER PORTION A GAS OUTLET FOR REMOVAL OF THE GAS IN THE GAS LAYER AND, AT OR BELOW THE LEVEL OF THE LIQUID LAYER, A LIQUID OUTLET FOR LIQUID AQUEOUS CATALYST SOLUTION CONTAINING SULFUR AND DIALKYL DISULFIDES, A CONDUIT EXTENDING AXIALLY FROM THE GAS SEPARATOR CHAMBER THROUGH THE ELONGATED REACTION CHAMBER TOWARD THE INLET END OF THE REACTION CHAMBER, AND ADAPTED TO CARRY LIQUID CATALYST SOLUTION
Claim 3
Dependent Claim 36 words
An apparatus in accordance with claim 1 which includes means for separating sulfur and alkyl disulfide from the catalyst solution from the gas separator, and means for recycling the resulting catalyst solution to the reaction chamber.
Claim 4
Dependent Claim 37 words
An apparatus in accordance with claim 1, in which the contacter reaction chamber is coaxial with the separator chamber, with a direct connection at the top of the reaction chamber to the bottom of the separator chamber.
Claim 5
Dependent Claim 59 words
An apparatus in accordance with claim 1, in which the elongated contactor is tubular, the conduit is a coaxial tube, and the gas separator is cylindrical and disposed coaxially at one end of the contactor, with the conduit projecting into the gas separator chamber to a point establishing by overflow the dispersion liquid level in the gas separator chamber.
Claim 6
Dependent Claim 27 words
An apparatus in accordance with claim 1, in which the height of the reaction chamber is within the range from about 3 feet to about 5 feet.
Claim 7
Dependent Claim 123 words
An apparatus in accordance with claim 1, in which the contactor reaction chamber is tubular, the gas separator is cylindrical and disposed coaxially at one end of the contactor with a direct connection at the top of the reaction chamber to the bottom of the separator chamber, and the liquid outlet for liquid aqueous catalyst solution in the gas separator chamber is at one end of a conduit extending axially from the bottoM of the gas separator chamber through the contactor reaction chamber to the inlet end thereof, and adapted to carry liquid catalyst solution from the gas separator chamber, the conduit projecting into the gas separator chamber to a point establishing by overflow the dispersion liquid level in the gas separator chamber.

References Cited (Backward Citations)

US2386681A Cited
US3188286A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-28 1979-01-27 1979-07-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-28 1983-01-27 1983-07-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-28 1987-01-27 1987-07-29 $7700.00 Window Closed / Lapsed

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