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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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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 ...
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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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Systems and methods for removing hydrogen sulfide from an ammonia stream
Bechtel Hydrocarbon Technology Solutions, Inc.
November 23, 2017 - N°20170333832

Systems and methods for removing hydrogen sulfide from an ammonia stream in the nh3 purification and liquefaction stage of a conventional two-column sour water stripping system using an adsorbent bed.
Methods of sulfurizing metal containing particles
Bechtel Hydrocarbon Technology Solutions, Inc.
November 02, 2017 - N°20170312719

Methods of sulfurizing metal containing particles in the absence of hydrogen are described. One method includes contacting a bed of metal containing particles with a gaseous stream comprising hydrogen sulfide and inert gas under reaction conditions sufficient to produce sulfided metal containing particles. The gaseous stream is introduced into a vertical reactor at an inlet positioned at the bottom portion ...
Battery and battery system
Panasonic Intellectual Property Management Co., Ltd.
October 26, 2017 - N°20170309975

A battery includes an outer packaging and a power generating element that contains a sulfur-based material and is included in the outer packaging and disposed in the inside of the outer packaging. The outer packaging includes a communicating port, a hydrogen sulfide eliminator, and an exhausting unit. The communicating port communicates between the inside and the outside of the outer ...
Battery cell, battery module, detection system, and determination system
Panasonic Intellectual Property Management Co., Ltd.
October 26, 2017 - N°20170309968

A battery cell includes a first resistance change member having first and second terminals, a first power generation element including a first positive electrode, a first negative electrode, and a first electrolyte interposed between the first positive electrode and the first negative electrode, a first case enclosing the first power generation element and the first resistance change member, and first ...
Low viscosity metal-based hydrogen sulfide scavengers
Baker Hughes, A Ge Company, Llc
October 26, 2017 - N°20170306246

A composition useful for scavenging hydrogen sulfide by admixing metal carboxylates which have high viscosity due to polymerization and a viscosity improver selected from the group consisting of glycol ethers having from about 4 to about 10 carbons, alkyl alcohols having from about 1 to about 10 carbons, and combinations thereof.
Hydrogen sulfide scavenger
Innophos, Inc.
October 26, 2017 - N°20170306129

The present disclosure is related to a family of metals chelates for use as a hydrogen sulfide scavenger in asphalt, and the preparation thereof. The metal chelates, in particular amino acid metal chelates, are particularly efficient at reducing the hydrogen sulfide emissions of asphalt.
Non-stripping bioreactor for biological sulfide oxidation from wastewaters and groundwaters containing hydrogen sulfide
Uop Llc
October 26, 2017 - N°20170305773

A method is presented for biological removal of contaminants like sulfide from ground waters and industrial waters. A portion of the bioreactor effluent water is recycled to the bioreactor and the sulfide oxidizing bacteria by biological oxidation oxidizes sulfides in the water to produce soluble sulfates. The present invention uses a packed bed bioreactor configuration that uses packing material to ...
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Chemical process for sulfur reduction of hydrocarbons
Uop Llc
October 19, 2017 - N°20170298281

Treatment of hydrocarbon streams, and in one non-limiting embodiment refinery distillates, with high ph aqueous reducing agents, such as borohydride, results in reduction of the sulfur compounds such as disulfides, mercaptans and thioethers that are present to give easily removed sulfides. The treatment converts the original sulfur compounds into hydrogen sulfide or low molecular weight mercaptans that can be extracted ...
Beta-mercaptoethanol synthesis
Chevron Phillips Chemical Company Lp
October 12, 2017 - N°20170291873

A process includes reacting, in a reactor having a fixed bed containing a solid catalyst which contains a heterogeneous ion exchange resin, hydrogen sulfide and ethylene oxide in the presence of the solid catalyst to yield a reaction product which contains beta-mercaptoethanol. A reactor system includes the reactor, an ethylene oxide stream, a hydrogen sulfide stream, a fixed bed containing ...
Methods and apparatus for measuring hydrogen sulfide in downhole fluids
Baker Hughes Incorporated
October 05, 2017 - N°20170285211

A method of determining a concentration of hydrogen sulfide in a fluid comprises exposing a sensor to the fluid, the sensor comprising a pair of electrodes defining a gap therebetween and a sensing material bridging the gap between the electrodes, measuring a value of an electrical parameter of the sensor at an applied frequency of greater than about 10 khz and ...
Sodium nitrite oxidation of hydrogen sulfide
United Laboratories International, Llc
October 05, 2017 - N°20170283286

A method for treating hydrogen sulfide in a solution includes providing the solution containing hydrogen sulfide. The method also includes adding sodium nitrite to the solution in an amount suitable to react with the hydrogen sulfide and treat the hydrogen sulfide.
Removal of hydrogen sulphide and carbon dioxide from a stream of fluid
United Laboratories International, Llc
October 05, 2017 - N°20170282115

In which r1, r2 and r3 are each independently selected from c1-4-alkyl and c1-4-hydroxyalkyl; each r4 is independently selected from hydrogen, c1-4-alkyl and c1-4-hydroxyalkyl; each r5 is independently selected from hydrogen, c1-4-alkyl and c1-4-hydroxyalkyl; x is oh or nh(cr1r2r3); m is 2, 3, 4 or 5; n is 2, 3, 4 or 5; ...
Gas-monitoring apparatus for detecting bowel movements and method of use
Sensor Technologies, Llc
September 28, 2017 - N°20170278373

A room monitoring device designed and intended to detect a bowel movement (bm) of a person occupying the room, such as a baby or infant or an adult with special needs or in a care facility. The device tests the air for particular substances such as, but not limited to, methane and hydrogen sulfide. The test is performed multiple times ...
Synthesis method for cathode material in lithium-sulfur battery
The Hong Kong Polytechnic University
September 21, 2017 - N°20170271660

The present invention relates to a method for synthesizing graphene/sulfur composite, involving the steps of mixing graphene oxide (go) with a hydrogen sulfide (h2s)-releasing agent in a sealed vessel, causing the h2s-releasing agent to release hydrogen sulfide, and then allowing the hydrogen sulfide to react with the graphene oxide at an elevated temperature and pressure to ...
Analytical method for optimizing efficiency of hydrogen sulfide scavengers
Canadian Energy Services L.p.
September 21, 2017 - N°20170269054

A method of determining sulfur content in an aqueous fluid containing spent hydrogen sulfide scavenger from a scrubber or contactor tower is described as is a method of optimizing the hydrogen sulfide scavenger treatment rate in a scrubber or contactor tower. The method includes the steps of providing a sample of an aqueous fluid from the scrubbing tower where the ...
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