阅读说明：本技术 来自变压吸附装置的残留气体的改善应用 (Improved use of residual gas from pressure swing adsorption units ) 是由 W·莱特迈尔 T·凯勒 F·汉格 A·迈尔 于 2018-04-27 设计创作，主要内容包括：本发明涉及用于提供燃料气体(4)的方法,所述燃料气体(4)是在用于合成气(1)分馏的变压吸附装置(D)的再生期间,在再生压力下作为残留气体(3)获得的,并在缓冲容器(P)中经过中间存储之后通过控制阀(Z1)以受控的质量流量供应至燃烧器(B)。其特征在于,通过指定由所述变压吸附装置(D)上的负载确定的操纵变量(8)将所述控制阀(Z1)定位在操作点上,其中所述缓冲容器(P)中的压力在限定范围内。(The invention relates to a method for providing a fuel gas (4), said fuel gas (4) being obtained as a residual gas (3) at a regeneration pressure during the regeneration of a pressure swing adsorption device (D) for the fractionation of a synthesis gas (1) and being supplied to a burner (B) at a controlled mass flow rate through a control valve (Z1) after intermediate storage in a buffer vessel (P). Characterized in that the control valve (Z1) is positioned at an operating point by specifying a manipulated variable (8) determined by the load on the pressure swing adsorption device (D), wherein the pressure in the buffer vessel (P) is within a defined range.)

1. Method for providing a fuel gas (4), which fuel gas (4) is obtained as residual gas (3) at regeneration pressure during the regeneration of a pressure swing adsorption device (D) for the fractionation of synthesis gas (1) and is supplied to a combustor (B) at a controlled mass flow rate through a control valve (Z1) after intermediate storage in a buffer vessel (P), characterized in that the control valve (Z1) is positioned at an operating point by inputting a manipulated variable (8) determined by the load on the pressure swing adsorption device (D), wherein the pressure in the buffer vessel (P) is within a defined range.

2. The method as claimed in claim 1, characterized in that the manipulated variable (8) is input to the control valve (Z1) in such a way that a pressure is built up in the buffer vessel (P) over the entire load range of the pressure swing adsorption device (D), the time average of said pressure being less than 300mbar (g).

3. The method of claim 1 or 2, wherein the defined pressure range has a lower limit of between 50mbar (g) and 150mbar (g) and an upper limit of between 200mbar (g) and 300mbar (g).

4. A method according to any one of claims 1 to 3, characterised in that the control valve (Z1) is positioned at its operating point by means of a Flow Controller (FC) connected to a position analysis controller (ZC), which for this purpose determines a value to be input to the Flow Controller (FC) as a target value by comparing the actual position value of the control valve (Z1) with a load-dependent manipulated variable (8).

5. A method according to any one of claims 1 to 3, characterised in that the control valve (Z1) is positioned at its operating point by means of a Flow Controller (FC) connected to a pressure controller (PC1), for which purpose the pressure controller (PC1) determines a target value input to the Flow Controller (FC) by comparing the pressure in the buffer container (P) with a load-dependent manipulated variable (8).

6. A method according to any one of claims 1 to 3, characterised in that the control valve (Z1) is positioned at its operating point by means of a Flow Controller (FC) connected to a pressure controller (PC1), for which purpose the pressure controller (PC1) obtains a target value calculated as a function of the load.

7. The method as claimed in any of claims 1 to 6, characterized in that the burner (B) is used for igniting a steam reformer (S).

8. The process according to any of claims 1 to 7, wherein the pressure swing adsorption unit (D) is used for removing hydrogen (2) from the synthesis gas obtained in the steam reformer (S).

9. Process according to claim 8, characterized in that once the pressure in the buffer vessel (P) drops below the lower limit of the defined pressure range, the synthesis gas or the gas mixture (1) obtained by fractionation of the synthesis gas is transferred upstream of the pressure swing adsorption unit (D) and directly passed into the buffer vessel (P) in the by-pass to the unit.