CN1358664A - Process for making ammonia by hydrogen combustion - Google Patents
Process for making ammonia by hydrogen combustion Download PDFInfo
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- CN1358664A CN1358664A CN 00132197 CN00132197A CN1358664A CN 1358664 A CN1358664 A CN 1358664A CN 00132197 CN00132197 CN 00132197 CN 00132197 A CN00132197 A CN 00132197A CN 1358664 A CN1358664 A CN 1358664A
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- hydrogen
- nitrogen
- air
- combustion
- making ammonia
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- Separation Of Gases By Adsorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The nitrogen preparation method includes the following steps: (1) according to the ratio of 2H2:O2 taking air from air compressor and taking hydrogen gas from hydrogen gas generator, mixing them; (2) feeding the above-mentioned mixed gas into burner to make combustion; and (3) after combustion, making excess hydrogen gas undergo the processes of catalytic dehydrogenation and dewatering treatment so as to obtain high-purity nitrogen gas.
Description
The present invention relates to extract the method for nitrogen, particularly a kind of process for making ammonia by hydrogen combustion.
Air mainly is made up of oxygen and nitrogen.In the exsiccant air, 78.03% of the volume duty gas of nitrogen, 20.9% of the volume duty gas of oxygen.Therefore air is a maximum raw material storage of producing nitrogen.Produce the method for nitrogen at present, if any cryogenic rectification method (Deep Cooling Method), it be with the air source of the gas under extremely low temperature, by various heat-exchanger rigs, carry out complex techniques process separation of nitrogen such as fractionation, expansion.Produce nitrogen and also have pressure swing adsorption process, it is after air source is purified, to change its pressure by pressurization or pressure regulating equipment, and the multipole adsorption tower of forming through carbonaceous molecular sieve separates airborne oxygen adsorption of nitrogen the method for discharging.Producing nitrogen also has the film permeation method, and it is to utilize hollow fiber membrane device, makes the airborne oxygen molecule of high pressure (more than the 12Mpa), discharges by membrane micropore, remains to the nitrogen molecule that passes through separates and produces nitrogen.Produce nitrogen in addition and also have chemiadsorption, this method is to contain in the compound of rich nitrogen molecule, produces nitrogen by the chemical reaction separation that chemical combination decomposes.Though aforesaid method is a lot, and weak point is respectively arranged.Its subject matter is exactly complex process, the cost height.
Purpose of the present invention is intended to propose a kind of by burning hydrogen, and the oxygen in the consumed cabin air is produced pollution-free, the process for making ammonia by hydrogen combustion that technology is simple, safe and reliable of high pure nitrogen.
Purpose of the present invention can realize by following proposal.
Process for making ammonia by hydrogen combustion is characterized in that the flow process of said processing method is: 1. with 2H
2: O
2Ratio, from the air that air compressor machine is obtained, the hydrogen of obtaining from hydrogen generator mixes; 2. air, hydrogen mixed gas enter burner combustion; 3. water treatment is removed to the exess of H2 gas catalytic dehydrogenation in the burning back, makes high-purity nitrogen.
Below in conjunction with embodiments of the invention and accompanying drawing, process for making ammonia by hydrogen combustion is described in detail.
Fig. 1 process for making ammonia by hydrogen combustion schematic flow sheet.
Process for making ammonia by hydrogen combustion of the present invention is according to nitrogen requirement and purity are set the hydrogen combustion process unit.At first with 2H
2: O
2Ratio or hydrogen greater than 2H
2: O
2Ratio, from the air that air compressor machine 1 is obtained, the hydrogen from hydrogen generator 5 is obtained mixes in oxyhydrogen mixing tank 2 again; To enter temperature be 400 ℃ to the gas mixture of air and hydrogen then--burning in 650 ℃ air, hydrogen mixed firing combination reaction device 3 (burners); Gas after the burning enters nitrogen, 4 pairs of the exess of H2 gas catalysis of water separator, carries out dehydrogenation and removes water treatment, thereby make nitrogen, and nitrogen gas purity can reach 99.999%.
Principle of the present invention is: because the chemical property of oxygen and nitrogen is different, utilizing oxygen and hydrogen at 400 ℃--the chemical combination that generates water that burns under 650 ℃ of conditions reflects theoretical, and get along well the with this understanding principle of hydrogen reaction of nitrogen, make and have a certain proportion of airborne oxygen and hydrogen, to outer gland sealing and can bear 0.6Mpa hot vessel internal combustion and consume, pass through the water that generates in the segregated combustion again, and obtain high-purity nitrogen.
The present invention utilizes hydrogen to burn into water in air, separates to produce high pure nitrogen, has that the principle science is reliable, a less investment, characteristics such as income is big, pollution-free, technology is simple, security height.The present invention separates from air directly that to produce the high pure nitrogen processing method simple and direct, provides convenience for middle-size and small-size user uses nitrogen.
Claims (2)
1 one kinds of process for making ammonia by hydrogen combustion is characterized in that the flow process of said processing method is: 1. with 2H
2: O
2Ratio, from the air that air compressor machine is obtained, the hydrogen of obtaining from hydrogen generator mixes; 2. air, hydrogen mixed gas enter burner combustion; 3. water treatment is removed to the exess of H2 gas catalytic dehydrogenation in the burning back, makes high-purity nitrogen.
2 according to the described processing method of claim 1, it is characterized in that said burner combustion temperature is 400 ℃--and 650 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00132197 CN1358664A (en) | 2000-12-21 | 2000-12-21 | Process for making ammonia by hydrogen combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00132197 CN1358664A (en) | 2000-12-21 | 2000-12-21 | Process for making ammonia by hydrogen combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1358664A true CN1358664A (en) | 2002-07-17 |
Family
ID=4595043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00132197 Pending CN1358664A (en) | 2000-12-21 | 2000-12-21 | Process for making ammonia by hydrogen combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1358664A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539083A (en) * | 2013-10-17 | 2014-01-29 | 潘庆光 | Method for preparing industrial nitrogen by using hydrogen-burning flue gas |
-
2000
- 2000-12-21 CN CN 00132197 patent/CN1358664A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539083A (en) * | 2013-10-17 | 2014-01-29 | 潘庆光 | Method for preparing industrial nitrogen by using hydrogen-burning flue gas |
| CN103539083B (en) * | 2013-10-17 | 2015-12-09 | 潘庆光 | Combustion hydrogen flue gas is adopted to prepare the method for industrial nitrogen |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |