Abstract

Embodiments for an apparatus for producing hydrogen peroxide are provided. The apparatus includes a heat exchanger configured to remove heat from deionized water prior to passing the deionized water through the anode passage of one or more cells. The apparatus is also configured to oxidize the deionized water in the anode passage of the one or more cells. The apparatus also includes a controller configured to control the heat exchanger and a first one or more temperature sensors electrically coupled to the controller. The first one or more temperature sensors are configured to provide a first temperature reading based on a temperature of the one or more cells, wherein the controller is configured to control the heat exchanger to maintain the first temperature reading at or below a first temperature threshold.

IPC Classes  ?

• C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
• C02F 1/467 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection
• C25B 1/30 - Peroxides
• C25B 15/021 - Process control or regulation of heating or cooling

Abstract

Embodiments for an apparatus for producing hydrogen peroxide are provided. The apparatus includes a heat exchanger configured to remove heat from deionized water prior to passing the deionized water through the anode passage of one or more cells. The apparatus is also configured to oxidize the deionized water in the anode passage of the one or more cells. The apparatus also includes a controller configured to control the heat exchanger and a first one or more temperature sensors electrically coupled to the controller. The first one or more temperature sensors are configured to provide a first temperature reading based on a temperature of the one or more cells, wherein the controller is configured to control the heat exchanger to maintain the first temperature reading at or below a first temperature threshold.

IPC Classes  ?

• C25B 1/30 - Peroxides
• C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
• C25B 9/67 - Heating or cooling means
• C25B 15/021 - Process control or regulation of heating or cooling
• C25B 15/027 - Temperature
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

Abstract

The present invention is directed to an apparatus for producing hydrogen peroxide, comprising one or more electrochemical cells, the apparatus further comprising at least one electrically conductive porous gas transport layer disposed next to a cathode gas diffusion layer, the gas transport layer being configured to deliver a flow of oxygen-containing gas towards the cathode gas diffusion layer and being configured to collect current, further including water which is configured to flow through the porous gas transport layer.

IPC Classes  ?

• C25B 11/032 - Gas diffusion electrodes
• C25B 1/30 - Peroxides
• C25B 15/029 - Concentration

Goods & Services

Rental of water treatment equipment; Water treatment services; Treatment of water; Providing information relating to water treatment; Rental of chemical processing machines and apparatus and providing information relating thereto; Water purification services; Water treatment and purification; Waste and/or water treatment services

Goods & Services

Rental of water treatment equipment; Water treatment; Water treatment services; Treatment of water; Providing information relating to water treatment; Rental of chemical processing machines and apparatus and providing information relating thereto; Treatment [purification] of water; Water purification; Water treatment and purification; Waste and/or water treatment services.

Abstract

The present invention is directed to an apparatus for producing hydrogen peroxide, comprising one or more electrochemical cells, the apparatus further comprising at least one electrically conductive porous gas transport layer disposed next to a cathode gas diffusion layer, the gas transport layer being configured to deliver a flow of oxygen-containing gas towards the cathode gas diffusion layer and being configured to collect current, further including water which is configured to flow through the porous gas transport layer.

IPC Classes  ?

• C02F 1/467 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 1/30 - Peroxides
• C25B 9/15 - Flow-through cells
• C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
• C25B 11/032 - Gas diffusion electrodes

Abstract

The present invention is directed to an apparatus for producing hydrogen peroxide, comprising one or more electrochemical cells, the apparatus further comprising at least one electrically conductive porous gas transport layer disposed next to a cathode gas diffusion layer, the gas transport layer being configured to deliver a flow of oxygen-containing gas towards the cathode gas diffusion layer and being configured to collect current, further including water which is configured to flow through the porous gas transport layer.

IPC Classes  ?

• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 1/30 - Peroxides
• C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
• C25B 11/032 - Gas diffusion electrodes
• C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
• C02F 1/467 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection
• C25B 9/15 - Flow-through cells

Abstract

A configuration of electrolyzer enabling electrochemical hydrogen peroxide production is disclosed. This electrolyzer consists of an anode, a cation exchange membrane, a porous proton-conducting layer and a cathode, assembled into a dedicated housing. A voltage difference is induced between anode and cathode to drive electrochemical reactions. Oxygen-containing gas is fed to the cathode, while the anode generates protons (typically using water as a proton source). Protons generated at the anode cross a cation exchange membrane and a porous proton-conducting layer, and they combine with oxygen at the surface of the cathode electrode to generate hydrogen peroxide. Generated hydrogen peroxide is extracted through the porous proton-conducting layer, in a process that can be aided with a water flow through the proton-conducting layer, which allows for a high faradaic efficiency and throughput.

IPC Classes  ?

• C25B 1/30 - Peroxides
• C25B 9/15 - Flow-through cells
• C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
• C25B 9/77 - Assemblies comprising two or more cells of the filter-press type having diaphragms

Goods & Services

Chemical sterilization units [water treatment equipment]; Water treatment apparatus for water purification; Chemical processing equipment; Installations for chemical processing. Rental of water treatment equipment; Water treatment; Water treatment services; Treatment of water; Providing information relating to water treatment; Rental of chemical processing machines and apparatus and providing information relating thereto; Treatment [purification] of water; Water purification; Water treatment and purification; Waste and/or water treatment services.

Goods & Services

Rental of water treatment equipment; Water treatment; Water treatment services; Treatment of water; Providing information relating to water treatment; Rental of chemical processing machines and apparatus and providing information relating thereto; Treatment and purification of water; Water purification; Water treatment and purification; Waste and/or water treatment services Chemical sterilization units for water treatment; water treatment equipment, namely, electrochemical sterilization units; Electrochemical water treatment apparatus for water purification; Chemical processing equipment, namely, water treatment chemical sterilization units; Installations for chemical processing

Goods & Services

Chemical sterilization units for water treatment; water treatment equipment, namely, electrochemical sterilization units; Electrochemical water treatment apparatus for water purification; Chemical processing equipment, namely, water treatment chemical sterilization units; Installations for chemical processing Rental of water treatment equipment; Water treatment; Water treatment services; Treatment of water; Providing information relating to water treatment; Rental of chemical processing machines and apparatus and providing information relating thereto; Treatment and purification of water; Water purification; Water treatment and purification; Waste and/or water treatment services

Goods & Services

Chemical processing equipment; Installations for chemical processing; Chemical sterilization units [water treatment equipment]; Water treatment apparatus for water purification. Rental of water treatment equipment; Water treatment; Water treatment services; Treatment of water; Providing information relating to water treatment; Rental of chemical processing machines and apparatus and providing information relating thereto; Treatment [purification] of water; Water purification; Water treatment and purification; Waste and/or water treatment services.

Goods & Services

Chemical sterilization units [water treatment equipment]; Water treatment apparatus for water purification; Chemical processing equipment; Installations for chemical processing. Rental of water treatment equipment; Water treatment; Water treatment services; Treatment of water; Providing information relating to water treatment; Rental of chemical processing machines and apparatus and providing information relating thereto; Treatment [purification] of water; Water purification; Water treatment and purification; Waste and/or water treatment services.

Abstract

The invention is directed to an electrochemical cell for production of chemicals from a gas-phase reactant in a liquid environment. The electrochemical cell has a membrane electrode assembly configuration and is comprised of an anode, an ion exchange membrane and a cathode. The membrane electrode assembly is in direct contact with a liquid solution to facilitate extraction and handling of the produced chemicals, and the gas reactant is delivered through the liquid to the membrane electrode assembly. The present invention relates to a process and electrochemical cell for use in the synthesis of chemicals. The present invention relates to the electrocatalysts used and their incorporation into a membrane electrode assembly, MEA. The present invention also relates to the electrodes used in a membrane electrode assembly, in particular the gas diffusion layer, and a method for transport of gas-phase reactants into a liquid-immersed membrane electrode assembly.

IPC Classes  ?

• C25B 1/30 - Peroxides
• C25B 9/08 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
• C25B 9/10 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms including an ion-exchange membrane in or on which electrode material is embedded
• C25B 9/18 - Assemblies comprising a plurality of cells
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes