ES2345918B1 - PURIFICATION OF SYNTHESIS GAS FOR THE OBTAINING OF HYDROGEN. - Google Patents

Abstract

Purification of the synthesis gas for Obtaining hydrogen.

It consists of introducing into a deposit of reaction (1), on the one hand sodium hydroxide (OHNa) (2) and on the other the synthesis gas (3), composed of carbon monoxide (CO) e hydrogen (H2).

We will submit these components in the warehouse at a temperature between 165 and 200 degrees Celsius and at a pressure of 8 atmospheres, occurring in the formate reaction sodium (HCOONa) (4) and Hydrogen (H2) (5).

Hydrogen in the form of gas will be collected for storage and sodium formate, in solid form it pick up.

Thus we have purified the synthesis gas, obtaining the hydrogen contained therein, eliminating the carbon monoxide in the form of inorganic matter, when converted in sodium formate.

Description

Purification of the synthesis gas for Obtaining hydrogen.

Background of the invention

The synthesis gas can be obtained from plant or methane matter -CH 3 -. Both processes occur in the nature. The synthesis gas is composed of monoxide of carbon and hydrogen -CO and H2 -. The procurement processes are highly studied and there are industrial gas production plants of synthesis. Although the heat capacity is lower than natural gas, obtaining organic matter and methane makes it very attractive Its use as a source of energy. Given the important pollution environmental product of the carbon monoxide -CO- that composes the Synthesis gas -CO and H2 -, ways of purifying have been sought said gas to obtain hydrogen -H2 -, which is the basis of the clean energies. Hydrogen -H2 -, as clean energy and not pollutant, is one of the most important lines of work that they are developing. Therefore, obtaining hydrogen -H2 - as an abundant source of energy is one of the current priorities on the research. The synthesis gas -CO and H2 - has the possibility of being that source of hydrogen production -H2 -, provided that it can be purified, eliminating carbon monoxide -CO-. Achieving that objective is the object of this invention.

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Object of the invention

It is intended with the present invention to purify the synthesis gas composed of carbon monoxide and hydrogen -CO and H_ {2} -, through a process whose result is to obtain hydrogen -H2 -.

To do this, in a reaction tank, introduces sodium hydroxide -NaOH-, and the synthesis gas, compound by carbon monoxide and hydrogen -CO and H2 -.

At a temperature between 165 and 200 degrees Celsius and at a pressure of 8 atmospheres, the reaction is the next:

one

The sodium formate -NaCOOH- that forms in the reaction is collected as solid. Hydrogen -H2 - in the form of gas, will be collected for storage.

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Description of the invention

"Purification of the synthesis gas for obtaining hydrogen ", which consist of the introduction, in a reaction tank, sodium hydroxide -NaOH- and gas synthesis, composed of carbon monoxide and hydrogen -CO and H2_ -

These components are subjected to a temperature between 165 and 200 degrees Celsius and at a pressure of 8 atmospheres, and the following reaction occurs:

2

The sodium formate that occurs in the reaction -NaCOOH- is collected as a solid.

Hydrogen -H2 - in the form of gas, is Will pick up for storage.

In this way, the synthesis gas, composed of carbon monoxide -CO- and hydrogen -H2 - has been purified, by a process whose result is the production of hydrogen -H2 - contained in the gas of synthesis -CO and H2 -, removing CO, carbon monoxide, in the form of inorganic matter, by converting it into sodium formate -NaCOOH-,
It will be collected as solid.

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Brief statement of the figure

Figure 1 graphically depicts the set of elements that make up the "Purification of the gas of synthesis for obtaining hydrogen ", and where it is represented (1) the reaction tank, where it is introduced on the one hand sodium hydroxide -NaOH- (2) and also the synthesis gas (3), composed of carbon monoxide and hydrogen -CO and H2 - (3).

We mix this mixture in the deposit of reaction (1) at a temperature of between 165 and 200 degrees centigrade and at a pressure of 8 atmospheres, producing formate sodium (4) and hydrogen (5):

3

The sodium formate -NaCOOH- that has formed in the reaction will be collected in solid form (4) and the hydrogen -H 2 - (5) in the form of gas, it will be collected for storage.

Thus we have purified the synthesis gas, obtaining hydrogen -H2 - contained therein, as before we have exposed, eliminating carbon monoxide -CO- in the form of inorganic matter, when converted into sodium formate -NaCOOH-.

Description of how to carry out the invention

A brief description follows. of the invention of the "Purification of the synthesis gas for the obtaining hydrogen ", where we can observe through scheme of figure number 1 described, as introduced in a reaction tank (1), sodium hydroxide -NaOH- (2) together with gas synthesis (3), which is formed by carbon monoxide and hydrogen -CO and H2.

We will submit it in the reaction tank (1) at a temperature of 165 to 200 degrees Celsius, and at a pressure of 8 atmospheres, producing a reaction, which results, sodium formate -NaCOOH- (4) and hydrogen -H2 - (5).

Sodium formate -NaCOOH- is collected as solid and hydrogen -H2 - in the form of gas is collected for storage. In this way, it has been possible to purify the gas from synthesis, obtaining hydrogen -H2 - and eliminating the monoxide of carbon -CO-.

Claims (2)

1. Procedure for the purification of the synthesis gas for obtaining hydrogen, which is essentially characterized by the reaction, in a reactor, of the synthesis gas, composed of carbon monoxide -CO- and hydrogen -H2 - with sodium hydroxide -NaOH-. 4 This reaction involves the formation of formate sodium -NaCOOH-, which precipitates as inorganic matter, leaving free hydrogen -H2 - in the form of gas, for removal and storage. 2. Procedure for purification of gas from synthesis for obtaining hydrogen, according to the first claim, of the reaction conditions of the hydroxide sodium -NaOH- with the synthesis gas, the hydroxide may be sodium -NaOH- either in a solid state or diluted in water, at a temperature between one hundred sixty five and two hundred degrees Celsius and at a pressure of eight atmospheres.