IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0039667
(1993-03-30)
|
| 우선권정보 |
DE-4210637 (1992-03-31) |
|
발명자
/ 주소 |
- Fabian Rainer (Geretsried DEX)
|
| 출원인 / 주소 |
- Linde Aktiengesellschaft (Wiesbaden DEX 03)
|
| 인용정보 |
피인용 횟수 :
21 인용 특허 :
0 |
초록
▼
An improvement in a process for the production of high-purity hydrogen and high-purity carbon monoxide by the separation of an extensively dry and CO2-free H2/CO crude gas mixture, also containing methane, by means of pressure swing adsorption and one-stage partial condensation, wherein, the H2/CO c
An improvement in a process for the production of high-purity hydrogen and high-purity carbon monoxide by the separation of an extensively dry and CO2-free H2/CO crude gas mixture, also containing methane, by means of pressure swing adsorption and one-stage partial condensation, wherein, the H2/CO crude gas mixture is subjected to a pressure swing adsorption process, producing a high-purity hydrogen product stream, while the CO-rich gas obtained in the regeneration during the pressure swing adsorption process is compressed, cooled, at least partially condensed, and conducted into a phase separator wherein it is separated into a gaseous H2-rich fraction and a liquid CO-rich fraction, whereupon the gaseous H2-rich fraction is heated and admixed to the H2/CO crude gas mixture before the latter is fed into the pressure swing adsorption. The improvement is that at least a portion of the liquid CO-rich fraction from the phase separator is at least partially expanded, heated, and conducted into the lower region of a double distillation column having an upper and lower region, a liquid methane fraction being withdrawn from the bottom of the column, a liquid high-purity carbon monoxide product fraction being withdrawn from the lower part of the upper region of the column, and a gaseous CO-rich fraction being withdrawn from the head of the column.
대표청구항
▼
In a process for the production of high-purity hydrogen and high-purity carbon monoxide by the separation of an extensively dry and CO2-free H2/CO crude gas mixture, also containing methane, by means of pressure swing adsorption and one-stage partial condensation, wherein, the H2/CO crude gas mixtur
In a process for the production of high-purity hydrogen and high-purity carbon monoxide by the separation of an extensively dry and CO2-free H2/CO crude gas mixture, also containing methane, by means of pressure swing adsorption and one-stage partial condensation, wherein, the H2/CO crude gas mixture is subjected to a pressure swing adsorption process, producing a high-purity hydrogen product stream, while the CO-rich gas obtained in the regeneration during the pressure swing adsorption process is compressed, cooled, at least partially condensed, and conducted into a phase separator wherein it is separated into a gaseous H2-rich fraction and a liquid CO-rich fraction, whereupon the gaseous H2-rich fraction is heated and admixed to the H2/CO crude gas mixture before the latter is fed into the pressure swing adsorption, the improvement wherein: at least a portion of the liquid CO-rich fraction from the phase separator is at least partially expanded, heated, and conducted into the lower column of a double distillation column having an upper and lower column, a liquid methane fraction being withdrawn from the bottom of the lower column, a liquid high-purity carbon monoxide product fraction being withdrawn from the lower part of the upper column, and a gaseous CO-rich fraction being withdrawn from the head of the upper column.
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