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%

Title:

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%

Document Type and Number:

WIPO Patent Application WO/2018/145177

Kind Code:

A4

Abstract:

The object of this patent is aimed at the production of OXIDIZING GAS CONTAINING 39% O2 AND 61 % N2 BY WEIGHT, WITH N2 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 O2 in the air that is compressed upon it, along with the portion of N2 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% O2 and 61 % N2 by weight, with N2, 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%. 2nd - unlike 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. 3 - degasification 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.

Inventors:

JOSÉ DUARTE VIEIRA FRANCISCO (BR)

Application Number:

PCT/BR2017/050029

Publication Date:

October 18, 2018

Filing Date:

February 10, 2017

Export Citation:

Click for automatic bibliography generation Help

Assignee:

JOSE DUARTE VIEIRA FRANCISCO (BR)

International Classes:

C01B13/00; B01D19/00

Attorney, Agent or Firm:

MAGALHÃES, Luiz Claudio (BR)

Download PDF:

View/Download PDF PDF Help

Claims:

AMENDED CLAIMS

received by the International Bureau on 27 August 2018 (27.08.2018)

1. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O2 AND 61 % N2 BY WEIGHT, WITH N2 HAVING A PURITY LEVEL BETWEEN 95% AND 98%", carried out by compressing air over water in a three-step sequence that produces an oxidizing gas of 39% 0₂ and 61% N₂ by weight in a single process and if the gas thus produced is reprocessed by the same three stages and the same equipment and a reprocessing gas is obtained with an 0₂ content of more than 39% by weight and also N₂ with a purity level of 95% to 98%, where, in the case in which all three steps of this process are carried out at room temperature, partially deaerated water is recycled and the only byproducts in the process are oxidizing gas and N₂ and, when the third step of this process is carried out by raising the temperature to 85°C and, at the same time, lowering the pressure to 0.5 atmospheres, completely deaerated water can be obtained, in which case the completely deaerated water leaves the Process as a byproduct, being replaced by a new volume of Process water, characterized by:

1 ^st Step. Water gasification - gasify the water by compressing atmospheric air over it at temperatures that may range from slightly above its solidification temperature and possibly lower than its boiling point in variable pressures and just enough to solubilize all the O₂ in the air in Process water at a temperature at which the Process is carried out, between 20.6 (±5%) atmospheres at 0°C and 31 (±5%) atmospheres at 25°C, as the proportions of air and water may vary with the mixture of gasified water and the gas being sent at the same gasification temperature and pressure to a gasification tank;

2^nd step. Nitrogen Removal - carry out the continuous removal of unsolubilized N₂ by keeping the processing fluid at the same pressure and the same temperature as those used in the previous process step at the same time it carries out the continuous removal of carbonated water; 3^rd Step. Water degassing - send the carbonated water located at the bottom of the gasification tank, at the Process pressure and temperature, to the degassing tank in which the pressure over it is reduced to atmospheric pressure and the oxidizing gas separates from the water in which it was dissolved under pressure in the previous two Process steps. 21

2. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O₂ AND 61 % N₂ BY WEIGHT, WITH N₂ HAVING A PURITY LEVEL BETWEEN 95% AND 98%", in accordance with Claim 1 , for the production of fully deaerated water, characterized by the fact that the temperature of the gasified water, which has already been separated from the unsolubilized N₂, is raised to 85°C and its pressure lowered to 0.5 atmospheres in the degassing tank.

3. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O₂ AND 61 % N₂ BY WEIGHT, WITH N₂ HAVING A PURITY LEVEL BETWEEN 95% AND 98%", to recycle the Process water, in accordance with Claim 1 , characterized by recycling the partially-degassed water, when the third Process step is carried out at room temperature.

4. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O₂ AND 61 % N₂ BY WEIGHT, WITH N₂ HAVING A PURITY LEVEL BETWEEN 95% AND 98%", in accordance with Claim 1 , characterized by reprocessing the oxidizing gas with 39% O₂ and 61 % N₂, which is in a suitable gasometer, which is carried out by closing and opening suitable valves to make the processed oxidizing gas return to the Process, with the gas that has been reprocessed being routed to a suitable gasometer.

5. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O₂ AND 61 % N₂ BY WEIGHT, WITH N₂ HAVING A PURITY LEVEL BETWEEN 95% AND 98%", for recycling the gas that already has an O₂ content greater than 39% by weight and which is stored in a suitable gasometer, in accordance with Claim 1 , characterized by the oxidizing gas, which has already been reprocessed, being reprocessed once more by closing and opening the appropriate valves, returning it to the Process and, after being reprocessed, is then stored in the appropriate gasometer.

6. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O₂ AND 61 % N₂ BY WEIGHT, WITH N₂ HAVING A PURITY LEVEL BETWEEN 95% AND 98%", with the gasification and N₂ removal steps being carried out at a temperature as close to 0°C as possible, 22

in accordance with Claim 1 , characterized by mixing of the air coming from the atmospheric air supply inlet with the supplied water being cooled in a heat exchanger, which has an external cooling source, and at a temperature close to 0°C, and having its pressure raised to 20.5 atmospheres, followed by a nebulizer that injects them into a gasification tank to separate the N₂ from the carbonated water, which is then routed to the base of an isobaric gasometer;

7. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O₂ AND 61 % N₂ BY WEIGHT, WITH N₂ HAVING A PURITY LEVEL BETWEEN 95% AND 98%", with the gasification and N₂ removal steps being carried out at the temperature as close to 0°C as possible, in accordance with Claim 1 , characterized by the aerated water that has already been separated from the N₂ being heated and routed to the gasification tank;

8. "CONTINUOUS PROCESS FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% O₂ AND 61 % N₂ BY WEIGHT, WITH N₂ HAVING A PURITY LEVEL BETWEEN 95% AND 98%" in accordance with Claim 1 , characterized by the gasified water being heated to 85°C and injected by a nebulizer into a degassing tank operating at a pressure of 0.5 atmospheres.

9. "EQUIPMENT FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% 02 AND 61 % N2 BY WEIGHT, WITH N2 HAVING A PURITY LEVEL BETWEEN 95% AND 98%", to operate at room temperature by recycling Process water, characterized by an atmospheric air supply inlet (A), water inlet (F), and Process recycled water inlet (RA), along with a oxidizing gas inlet (RG), with said inlets connected to a mixed air rotary pump inlet (B) with injection into the compressor (2), which is connected to the nebulizer (N1 ) located at the top of the gasification tank (TG); said gasification tank (TG) further comprising a pressure switch (P) on its top and a control valve (V1 ) connected to the isobaric gasometer inlet (G2).

10. "EQUIPMENT FOR THE PRODUCTION OF OXIDIZING GAS CONTAINING 39% 02 AND 61 % N2 BY WEIGHT, WITH N2 HAVING A PURITY LEVEL BETWEEN 95% AND 98%", in accordance with Claim 9, 23

characterized by the gasification tank (TG) having a valve at its base (V2) controlled by the pressure switch (P) and valve (VA); said valves (V2) and (VA) being connected to the degassing tank (TD), which comprises a vacuum and compressor turbine (TAC), said turbine (TAC) consisting of valves (V3A), (V3B), and (V3) that are connected to the base of the isobaric gasometer (G1 ).

Previous Patent: SMART RFID RUBBISH BIN

Next Patent: ELECTRONIC PROTECTION FOR METAL STRUCTURES AGAINST CORROSION