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Hydrogen Sulfide

Hydrogen Sulfide-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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NEW Methods of measuring hydrogen sulfide concentrations in reservoir fluids
Shell Oil Company
February 15, 2018 - N°20180045705

A chemical probe composition comprising a base fluid and a chemical probe, wherein the chemical probe is capable of reacting with hydrogen sulfide to form a fluorophore and associated methods and systems.
NEW Method for producing nickel sulfide and hydrometallurgical method for nickel oxide ore
Sumitomo Metal Mining Co., Ltd.
February 15, 2018 - N°20180044760

Provided is a method for producing nickel sulfide from an acidic sulfuric acid solution containing nickel, which is capable of suppressing particle diameters of nickel sulfide obtained thereby. The present invention is a method for producing nickel sulfide by causing a sulfurization reaction by blowing a hydrogen sulfide gas into an acidic sulfuric acid solution containing nickel, wherein: nickel sulfide ...
NEW Method of reducing hydrogen sulfide levels in gaseous mixtures using triazines
Dow Global Technologies Llc
February 15, 2018 - N°20180044598

The present invention relates to a scavenging composition capable of scavenging a wide variety of sulfur-bearing compounds, such as hydrogen sulfide and method of use thereof. Said scavenging composition comprises an aqueous solution of a triazine compound, an anionic surfactant, and optionally an alcohol and/or glycol ether solution. The composition may be used in any kind of sulfide-scavenging operation ...
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Antifouling and hydrogen sulfide scavenging compositions
Ecolab Usa Inc.
February 01, 2018 - N°20180030360

Disclosed herein are scavenging and antifouling compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compositions as scavengers and antifoulants, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
System and method for separating carbon dioxide from natural gas
Mitsubishi Heavy Industries, Ltd.
February 01, 2018 - N°20180028965

A system and method for separating co2 from natural gas, which ensure that no clogging or deterioration occurs in a gas separation membrane even after the gas separation membrane is used to remove carbon dioxide from the natural gas under conditions in which the natural gas is pressurized. First, an h2s remover removes hydrogen sulfide from raw natural gas. ...
Compound bed design with additional regeneration steps for removal of various sulfur species from lighter ...
Uop Llc
January 18, 2018 - N°20180016210

A process is provided to remove impurities including water, mercaptans, carbonyl sulfide and hydrogen sulfide from hydrocarbon streams containing from 100 to 900 ppm light olefins. In the process, a compound bed containing multiple layers of molecular sieves is used to remove the specific impurities. In situations when the regeneration gas may contain sulfur compounds, a sulfur guard bed may be used ...
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High efficiency process for degassing of hydrogen sulfide from liquid sulfur
Worleyparsons Europe Ltd.
January 18, 2018 - N°20180016143

Processes and systems for degassing liquid sulfur may include mixing a gas, such as air, with a liquid sulfur mixture comprising sulfur, hydrogen sulfide, and hydrogen polysulfides to form a sulfur-gas mixture. The sulfur-gas mixture may then be transported to a separator, storage vessel or storage tank for separating the sulfur-gas mixture.
Composition for removing sulfur-containing compounds
Kuraray Co., Ltd.
January 11, 2018 - N°20180010056

Provided is a composition capable of safely and efficiently removing a sulfur-containing compound, especially hydrogen sulfide, an —sh group-containing compound or a mixture thereof contained in a hydrocarbon, and not causing metal corrosion in devices. The composition is for removing a sulfur-containing compound in a hydrocarbon, wherein the sulfur-containing compound is hydrogen sulfide, an —sh group-containing compound or ...
Removal of hydrogen sulfide and sulfur recovery from a gas stream by catalytic direct oxidation ...
Prosernat
January 11, 2018 - N°20180008930

A process for the removal of hydrogen sulfide and sulfur recovery from a h2s-containing gas stream by catalytic direct oxidation and claus reaction through two or more serially connected catalytic reactors, wherein a specific control of the oxygen supplement is operated. The control and improvement of the process is obtained by complementing, in each major step of the process, ...
Portable device for the in-line measurement of the hydrogen sulfide concentration of an off-gas
Arkema France
January 04, 2018 - N°20180003625

The invention relates to a device and to a method for continuously measuring the hydrogen sulfide concentration of an off-gas by means of a detachable device suitable for being temporarily connected to equipment producing the off-gas. The method comprises a step of measuring the absorption of electromagnetic radiation by the off-gas. The device and method method can be used in ...
Compositions and methods for mitigating hydrogen sulfide contamination
Baker Hughes, A Ge Company, Llc
January 04, 2018 - N°20180002211

In some embodiments, the present invention provides a recombinant protein comprising an affinity tag configured to attach the recombinant protein to a silicate surface, fused to a hydrogen sulfide scavenging enzyme.
Method to selectively remove hydrogen sulfide from a gas stream using a functionalized cross-linked macroporous ...
Dow Global Technologies Llc
January 04, 2018 - N°20180001299

A process is disclosed for the removal of hydrogen sulfide (h2s) from natural. This process provides for passing a natural gas feedstream comprising h2s though a regenerable adsorbent media which adsorbs h2s to provide an h2s-lean natural gas product and h2s. The regenerable adsorbent media of the present invention is a tertiary amine functionalized cross-linked ...
Device for producing lithium sulfide, and method for producing lithium sulfide
Idemitsu Kosan Co., Ltd.
December 28, 2017 - N°20170368515

An apparatus for producing lithium sulfide, including: a reaction container for allowing lithium hydroxide powder to be in contact with a hydrogen sulfide gas; a stirring blade inside the reaction container; a first heating apparatus that keeps the temperature of an inner wall of the reaction container that is in contact with the powder; and a second heating apparatus that ...
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Method and system for removing hydrogen sulfide from sour oil and sour water
Anschutz Exploration Corporation
December 14, 2017 - N°20170355618

Embodiments of the present invention are generally related to a system and method to remove hydrogen sulfide from sour water and sour oil. In particular, hydrogen sulfide is removed from sour water and sour oil without the need for special chemicals, such as catalyst chemicals, scavenger chemicals, hydrocarbon sources, or a large scale facility. The system and method in the ...
Sulfide-based solid electrolyte for lithium ion cell, and solid electrolyte compound
Mitsui Mining & Smelting Co., Ltd.
December 07, 2017 - N°20170352916

Relating to a sulfide-based solid electrolyte compound for lithium ion batteries which has a cubic argyrodite-type crystal structure, to provide a compound which can suppress a generation amount of hydrogen sulfide when being left to stand in the air and which can maintain high conductivity even when being left to stand in dry air. Proposed is a sulfide-based solid electrolyte ...
Novel process designs for increased selectivity and capacity for hydrogen sulfide capture from acid gases
Exxonmobil Research And Engineering Company
December 07, 2017 - N°20170348630

A system and process for selectively separating h2s from a gas mixture which also comprises co2 is disclosed. A water recycle stream is fed to the absorber in order to create a higher concentration absorbent above the recycle feed and having a greater h2s selectivity at lower acid gas loadings, and a more dilute absorbent below the recycle ...
Process for removing oxygenates from hydrocarbon streams
Fluor Technologies Corporation
November 30, 2017 - N°20170342333

A method of removing oxygenates from a hydrocarbon stream comprises passing a hydrocarbon stream to a caustic tower having a plurality of loops, contacting the hydrocarbon stream with a sulfided catalyst between a first loop of the plurality of loops and a second loop of the plurality of loops to produce a reaction product, passing the reaction product to the ...
Method for removing hydrogen sulfide from an acid gas
Haldor TopsØe A/s
November 23, 2017 - N°20170335213

A method for removing hydrogen sulfide (h2s) from an acid gas comprises feeding the gas to a membrane separation unit, collecting the product gas from the membrane unit, heating the permeate stream to the necessary inlet temperature for catalytic oxidation of h2s and feeding the heated permeate stream to a catalytic oxidation unit, where h2s is oxidized ...
Apparatus and method for mixing hydrogen sulfide scavenger with crude oil within a pipeline
Baker Hughes, A Ge Company, Llc
November 23, 2017 - N°20170335209

An apparatus and method for mixing a hydrogen sulfide scavenger with crude oil within a pipeline are disclosed. The hydrogen sulfide scavenger and the crude oil can be passed through a plurality of baffles disposed at spaced apart locations within the pipeline. The baffles can be used as an in-flow static mixer to produce increased circulation and flow speed which ...
Heavy amines as hydrogen sulfide and mercaptan scavengers
Ecolab Usa Inc.
November 23, 2017 - N°20170335204

The present invention generally relates to compositions and methods for scavenging hydrogen sulfide and/or mercaptans from fluids. More particularly, the invention relates to the use of compositions comprising a surfactant and the reaction product between a polyamine and a formaldehyde as a hydrogen sulfide or a mercaptan scavenger for hydrocarbon-containing fluids, particularly for natural gas, crude oil, field oil, ...
Acrylate-based sulfur scavenging agents for use in oilfield operations
Multi-chem Group, Llc
November 23, 2017 - N°20170335188

Composition for the removal or inactivation of hydrogen sulfide or soluble sulfide ion other species comprising ionizable sulfur (e. G., mercaptans, thiols, etc.) using compositions containing acrylate and/or derivatives thereof are provided. Methods for the removal or inactivation of hydrogen sulfide or other sulfur species in oilfield sites and other related applications using compositions containing acrylate and/or derivatives ...
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