ES2347751A1 - Elimination of industrial co2 through its fixation in sodic bicarbonate. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Elimination of industrial co2 by fixing it in sodium bicarbonate. The co2 coming from the industrial previous filtration of inorganic matter, and by means of pipe, we make it happen to a "reaction tank", where we will have saturated the water with ammonium acetate. The hco ion3 -, the ammonium ion and the acetic ion and the carbonic acid will remain in the solution and then we will introduce sodium hydroxide (naoh) (4), in excess, which It will react, both with the hco ion3 -, and with the acetic ion, causing a series of chain reactions. And from that reaction, sodium acetate will be produced, which will release ammonia (6), which we will continuously recycle in the reaction tank, to form ammonium ion, which will form with sodium acetate, ammonium acetate, and sodium hydroxide will remain in dissolution, beginning the process, with the introduction of co2 and sodium bicarbonate (5) that we recover from the deposit by decanting. (Machine-translation by Google Translate, not legally binding)

Description

Elimination of industrial CO2 by its fixation in sodium bicarbonate.

Background of the invention

The major concern of emissions of CO2 to the atmosphere and the entry into force of protocols, such as that of Kyoto, as well as government measures in the matter, aimed at penalizing those companies that emit more CO_ {2} to the atmosphere, justifies the initiative of any invention that is capable of capturing and eliminating by fixation, the CO_ {2}, generated in industrial processes.

Given the high emission rates of CO_ {2} presented by our country in recent years, the situation It is becoming increasingly worrying, so they will have to look for methods to reduce CO2 emissions by atmosphere.

It is within this reality, where the present invention, which develops a system that after capturing the CO_ {2} produced by any industrial process (cement, thermoelectric power plants, steelworks, incinerators, etc.) achieved through a process of chemical reactions, elimination by fixation of CO2 avoiding its emission to the atmosphere, as it is currently happening.

Object of the invention

Therefore, the reason for the present invention it deals with the elimination, by means of fixation, of the CO2 generated in industrial processes, also enabling the use of certain fuels or facilities, which due to their high degree of contamination are difficult to implement, being able with this system be located in any industrial estate.

The present invention, as expressed by the stated in this descriptive report, it consists of a new process of Elimination of CO2, industrial by fixing it in sodium bicarbonate whose operation is determined by the introduction of a conductive pipe of CO2 generated by any industrial installation, after passing through a filter inorganic matter, within a deposit which we will call "reaction tank", at temperature and pressure so that react with water, previously saturated with ammonium acetate.

The HCO 3 - ion will remain in the solution. Ammonium ion and acetic ion. Once diluted the three components outlined, we will introduce into the hydroxide reaction tank sodium -NaOH-, in excess, to react, both with the ion HCO 3 -, as with the acetic ion, to cause a series of chemical chain reactions, which we will develop at then, and that lead us to obtain sodium bicarbonate, the sodium acetate remaining in the solution, and the ammonia in the form of gas, which we will pick up to start over the reaction. Baking soda is recovered from the tank by decantation, while sodium acetate stays in the dissolution. The ammonia released in the first reaction, what we will recirculate continuously in the reaction tank, so that the solution in water, the ammonium ion is formed. Ammonium ion -NH 4 + - by reacting with sodium acetate, it forms ammonium acetate, leaving sodium hydroxide in solution. With This starts the main reaction again by entering the CO 2.

Description of the invention

The present invention of "Elimination of CO2, industrial by fixing it in sodium bicarbonate ", which consists, as we have indicated previously, in the continuously introduced into a reaction vessel, of the CO2 emissions and other pollutant gases generated by any industrial installation, prior to its filtration by a filter of inorganic matter.

Inside the reaction tank they are received CO2 gases - carbon dioxide -, at temperature and pressure to react with the water inside the tank, saturated with ammonium acetate CH 3 COONH 4 (ac).

CO2 diluted in water, forms acidic carbonic, leaving all ions of carbonic acid, acetic and Ammonium, in solution.

Next we will add to the deposit of Sodium hydroxide reaction -NaOH-, in excess, to produce The following chemical reactions:

CH 3 COONH 4 + H 2 CO 3 + 2 NaOH - - - - - CH 3 COONa + NaHCO 3 + NH 3 + 2 H2O

After this phase of the process in the warehouse of reaction, the sodium bicarbonate -NaHCO3 - is recovered by decanting

The NH3, - ammonia in gas -, which is produced during this phase of the process, it recovers and becomes again introduced into the reaction tank for reuse of A continuous way. Sodium acetate stays in the solution and by reacting again with the ammonia -NH_ {3} - that we have recirculated, reacts producing ammonium acetate and releasing the sodium hydroxide remaining in the solution to react again with carbonic acid, when the CO 2.

Brief statement of the figure

Figure 1 graphically depicts the set of elements that make up this new system of "Elimination of industrial CO2 by fixing it in baking soda "and where (1) represents the pipe, where we will drive the CO_ {2}, coming from any installation industrial, which and as a previous step, we will have gone through a inorganic matter filter.

Through this conduction, we will introduce the CO2 in a reaction tank (2), at temperature and pressure to react with water, which we will have previously saturated ammonium acetate (3).

The HCO 3 - ion will remain in the solution. Ammonium ion and acetic ion and carbonic acid.

Once the three components reviewed have been diluted, we will introduce into the reaction tank sodium hydroxide -NaOH- (4), in excess, which will react, both with the HCO3 - ion, as with the acetic ion, causing a series of reactions in chain. And from that reaction, sodium acetate will be produced, which will release ammonia (6). And sodium bicarbonate (5) that We recover from the deposit by decantation.

The ammonia (6) detached we will recirculate continuously in the reaction tank, so that the dissolution in water, the ammonium ion forms. The ammonium ion -NH 4 + - al react with sodium acetate, ammonium acetate is formed, leaving the sodium hydroxide in solution.

With this, the reaction starts again main when entering CO_ {2}.

Description of how to carry out the invention

The system of "Elimination of CO_ {2}, industrial by fixing it in sodium bicarbonate ", what we will develop as follows, through a pipe (1) we will drive the CO_ {2}, coming from any installation industrial, which we will have filtered inorganic matter, through a filter, to a reaction tank (2), filled with water saturated with ammonium acetate (3), and we will subject it to temperature and pressure to react.

From that reaction the ion will remain in the solution HCO 3 -, the ammonium ion and acetic ion and carbonic acid.

Once the three components reviewed have been diluted, we will introduce into the reaction tank sodium hydroxide -NaOH- (4), in excess, so that reacting, both with the ion HCO 3 -, as with the acetic ion, cause a series of chemical chain reactions.

Thus, sodium bicarbonate (5) will be produced which we recover from the deposit by decantation, while the acetate sodium remains in the solution and ammonia will be released.

The ammonia (6) released will return to introduce into the reaction tank, and we make it circulate continuously, so that dissolved in the water, the ammonium ion is formed. The ammonium ion -NH 4 + - when reacting with sodium acetate, ammonium acetate is formed, leaving sodium hydroxide -NaOH- in dissolution. With this, the main reaction to the enter the CO_ {2}.

Claims (4)

1. The process of elimination of industrial CO2 by fixing it in sodium bicarbonate is essentially characterized by the dissolution in water of ammonium acetate, prior to the introduction of CO2 into the reaction tank, which diluted forms the carbonic acid. The solution containing HCO 3 -, acetic and ammonium ions, we add sodium hydroxide, to form sodium bicarbonate, which precipitates, releasing the ammonia in the form of gas, which is recirculated in the reaction tank. The sodium acetate remains in the solution without being consumed, reacting in the ammonium ion, to re-form the ammonium acetate and start the process again. 2. The process of removing CO_ {2} industrial by fixing it in sodium bicarbonate, according with the first claim, it consists in fixing the CO2 from industrial emissions, in sodium bicarbonate, by adding sodium hydroxide and using acetate ammonium as an intermediate element to promote the reaction principal. 3. The process of removing CO_ {2} industrial by fixing it in sodium bicarbonate, according with the first and second claims, it consists in transforming sodium hydroxide in sodium bicarbonate, by dissolving of the CO2 in water, so that in its reaction the CO2 is set in an inorganic matter, preventing it from being released into the atmosphere and Produce the greenhouse effect. 4. The process of removing CO_ {2} industrial by fixing it in sodium bicarbonate, according with the first, second and third claims, it consists of Recirculate the ammonia in a solution of sodium acetate and acid carbonic, so that in its reaction sodium bicarbonate is formed and ammonium acetate Ammonia is not consumed in the reaction, since it recovers and consequently does not imply a cost neither economic nor energy in the process of elimination of CO2, when converted in an inorganic matter, such as sodium bicarbonate.