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US 12,545,592 B2Granted
Method for the control of pressure in a loop for the preparation of ammonia or methanol
AssigneeTopsoe A/S
InventorsChristian Henrik Speth, Michael Hultqvist, Pat A. Han
Life of this patent
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Abstract
A method for the control of pressure in a loop for the preparation of ammonia or methanol by using an anti-surge control valve of a compressor and/or a compressor flow regulation valve for the recirculation of loop recirculation gas at variating flow supply of fresh synthesis gas.
Claims13
A method for the control of pressure in a loop for the preparation of ammonia or methanol comprising the steps of:
- (a) providing a fresh ammonia or methanol synthesis gas;
- (b) providing a loop recirculation gas;
- (c) providing a loop recirculation compressor with an anti-surge valve and/or a compressor flow regulation valve;
- (d) providing an ammonia or methanol synthesis loop;
- (e) adding the fresh ammonia or methanol synthesis gas into the loop recirculation gas;
- (f) pressurizing the loop recirculation gas from step (e) in the loop recirculation compressor;
- and
- (g) monitoring pressure in the ammonia or methanol synthesis loop,
- wherein flow of the loop recirculation gas through the anti-surge valve and/or the recirculation compressor flow regulation valve is controlled to obtain a substantially constant pressure in the ammonia or methanol synthesis loop.
6 more elements
A method for the control of pressure in a loop for the preparation of methanol comprising the steps of:
- (a) providing a fresh methanol synthesis gas;
- (b) providing a loop recirculation gas;
- (c) providing a loop recirculation compressor with an anti-surge valve and/or a compressor flow regulation valve;
- (d) providing a methanol synthesis loop;
- (e) pressurizing the loop recirculation gas in the loop recirculation compressor;
- (f) adding the fresh methanol synthesis gas into the loop recirculation gas;
- and
- (g) monitoring pressure in the methanol synthesis loop,
- wherein flow of the loop recirculation gas through the anti-surge valve and/or the recirculation compressor flow regulation valve is controlled to obtain a substantially constant pressure in the methanol synthesis loop.
6 more elements
Dependencies are inferred from the claim text.