C01B13/0285

Process for separation of hydrogen and oxygen produced from photocatalytic water splitting by absorption

Embodiments of the invention are directed to methods, processes, and systems for safely and reliably purifying hydrogen from a gas mixture containing hydrogen and oxygen.

PROCESS FOR SEPARATION OF HYDROGEN AND OXYGEN PRODUCED FROM PHOTOCATALYTIC WATER SPLITTING BY ABSORPTION

Embodiments of the invention are directed to methods, processes, and systems for safely and reliably purifying hydrogen from a gas mixture containing hydrogen and oxygen.

Process for separating gases from gas mixtures using hydro fluoro ether
10814268 · 2020-10-27 ·

A process for something separating oxygen from air includes mixing the air with hydro fluoro ether in a closed vessel for a desired period of time so that the oxygen from the air is adsorbed into the hydro fluoro ether, discharging the oxygen-adsorbed hydro fluoro ether from the closed vessel, and flashing the oxygen-adsorbed hydro fluoro ether into a chamber so that so as to separate the oxygen from the hydro fluoro ether. Nitrogen is separated from the air as the oxygen is adsorbed in the hydro fluoro ether in the closed vessel. The step of flashing that includes passing the elevated pressure oxygen-adsorbed hydro fluoro ether across a restricting orifice so as to evaporate the oxygen from the hydro fluoro ether.

PROCESS FOR SEPARATION OF HYDROGEN AND OXYGEN PRODUCED FROM PHOTOCATALYTIC WATER SPLITTING BY ABSORPTION

Embodiments of the invention are directed to methods, processes, and systems for safely and reliably purifying hydrogen from a gas mixture containing hydrogen and oxygen.

CONTINUOUS PROCESS AND EQUIPMENT FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O2 AND 61% N2 BY WEIGHT, WITH N2 HAVING A PURITY LEVEL BETWEEN 95% AND 98%
20190381424 · 2019-12-19 ·

The object of this patent is aimed at the production of OXIDIZING GAS CONTAINING 39% O.sub.2 AND 61% N.sub.2 BY WEIGHT, WITH N.sub.2 HAVING A PURITY LEVEL BETWEEN 95% AND 98%, whereby the water that will be deaerated is previously aerated at temperatures ranging from ambient down to 0 C., under pressures between 20.6 and 31 atm, only enough to dissolve all the volume of O.sub.2 in the air that is compressed upon it, along with the portion of N.sub.2 of the air, whose capture cannot be dissociated from the process. Afterwards, part of the air is recovered at the top of the deaeration tank, in the form of oxidizing gas, containing 39% O.sub.2 and 61% N.sub.2 by weight, with N.sub.2, which was originally part of the compressed air and was not solubilized in the water, being collected at the top of the aeration or gasification tank showing a purity level between 95% and 98%.

2ndunlike the State of the Art, which mandatorily requires high water temperature, up to its boiling point, the process degasification, object of the present invention, may be conducted by the preferred embodiment of its pieces of equipment simply by reducing degasification pressure in the degasification tank down to a little bit less than the atmospheric pressure to obtain the same oxidizing gas, and, following degasification, the process water keeps about 20 mg of air, per liter of water, dissolved in itself and, therefore, cannot be used as totally deaerated water.

3degasification may also be carried out by equipment as formed in the first construction variant of the object of this patent by reducing pressure and, at the same time, increasing the temperature, or sending it, in both embodiments, to the equipment, pre-existing in certain industries, which is used to fully deaerate water and, in these cases, produce the oxidizing gas and fully deaerated water.

GLUCOSE SENSORS AND METHODS OF MANUFACTURE THEREOF
20190300925 · 2019-10-03 ·

Disclosed herein is a device that functions as a glucose sensor. The device has a reference electrode; a counter electrode, a working electrode; an electrically conducting membrane; an enzyme layer; a semi-permeable membrane; a first layer of a first hydrogel in operative communication with the working electrode; the first layer of the first hydrogel being operative to store oxygen; wherein the amount of stored oxygen is proportional to the number of freeze-thaw cycles that the hydrogel is subjected to; and a second layer of the second hydrogel. Disclosed too is a method that comprises using periodically biased amperometry towards interrogation of implantable glucose sensors to improve both sensor's sensitivity and linearity while at the same time enable internal calibration against sensor drifts that originate from changes in either electrode activity or membrane permeability as a result of fouling, calcification and/or fibrosis.

PROCESS FOR SEPARATING GASES FROM GAS MIXTURES USING HYDRO FLUORO ETHER
20190299156 · 2019-10-03 ·

A process for something separating oxygen from air includes mixing the air with hydro fluoro ether in a closed vessel for a desired period of time so that the oxygen from the air is adsorbed into the hydro fluoro ether, discharging the oxygen-adsorbed hydro fluoro ether from the closed vessel, and flashing the oxygen-adsorbed hydro fluoro ether into a chamber so that so as to separate the oxygen from the hydro fluoro ether. Nitrogen is separated from the air as the oxygen is adsorbed in the hydro fluoro ether in the closed vessel. The step of flashing that includes passing the elevated pressure oxygen-adsorbed hydro fluoro ether across a restricting orifice so as to evaporate the oxygen from the hydro fluoro ether.

Glucose sensors and methods of manufacture thereof

Disclosed herein is a device that functions as a glucose sensor. The device has a reference electrode; a counter electrode, a working electrode; an electrically conducting membrane; an enzyme layer; a semi-permeable membrane; a first layer of a first hydrogel in operative communication with the working electrode; the first layer of the first hydrogel being operative to store oxygen; wherein the amount of stored oxygen is proportional to the number of freeze-thaw cycles that the hydrogel is subjected to; and a second layer of the second hydrogel. Disclosed too is a method that comprises using periodically biased amperometry towards interrogation of implantable glucose sensors to improve both sensor's sensitivity and linearity while at the same time enable internal calibration against sensor drifts that originate from changes in either electrode activity or membrane permeability as a result of fouling, calcification and/or fibrosis.

CARBON DIOXIDE CAPTURING METHOD AND SYSTEM FOR CO-PRODUCING OF CARBON MONOXIDE AND HYDROGEN

Disclosed are a carbon dioxide capturing method and a carbon dioxide capturing system for co-producing of carbon monoxide and hydrogen. The method includes: capturing, by an alkaline solution, carbon dioxide in a target component, to obtain an aqueous solution containing a carbonate; performing, on the aqueous solution containing the carbonate, a first electrolytic process, to obtain a first aqueous solution containing a bicarbonate and hydrogen; and performing, on the first aqueous solution containing the bicarbonate in the presence of a catalyst, a second electrolytic process, to obtain the carbon monoxide and the hydrogen, where the catalyst is selected as at least one component from a group consisting of an elementary substance of metal, alloy and compound of group VIII, group IB, group IIB, group IVA and lanthanide.