A method and system for supplying additional hydrogen from a reservoir of stored hydrogen in a salt cavern to a hydrogen pipeline to assist in meeting customer demand for hydrogen is provided. Contaminants introduced while the stored hydrogen stream is in the salt cavern may cause the crude hydrogen stream to not have the required product purity specification. The stored hydrogen is removed from the salt cavern as a crude hydrogen stream and thereafter diluted with higher purity hydrogen formed from the pipeline to form a hydrogen product stream at or below the product purity specification. The hydrogen product can be formed without removal of any of the contaminants in the crude stream, thereby creating a more cost effective and simplified supply process compared to conventional processes employing a salt cavern for hydrogen supply.

A method and system for supplying additional hydrogen from a reservoir of stored hydrogen in a salt cavern to a hydrogen pipeline to assist in meeting customer demand for hydrogen is provided. Contaminants introduced while the stored hydrogen stream is in the salt cavern may cause the crude hydrogen stream to not have the required product purity specification. The stored hydrogen is removed from the salt cavern as a crude hydrogen stream and thereafter diluted with higher purity hydrogen formed from the pipeline to form a hydrogen product stream at or below the product purity specification. The hydrogen product can be formed without removal of any of the contaminants in the crude stream, thereby creating a more cost effective and simplified supply process compared to conventional processes employing a salt cavern for hydrogen supply.

A method and system for supplying additional hydrogen from a reservoir of stored hydrogen in a salt cavern to a hydrogen pipeline to assist in meeting customer demand for hydrogen is provided. Contaminants introduced while the stored hydrogen stream is in the salt cavern may cause the crude hydrogen stream to not have the required product purity specification. The stored hydrogen is removed from the salt cavern as a crude hydrogen stream and thereafter diluted with higher purity hydrogen formed from the pipeline to form a hydrogen product stream at or below the product purity specification. The hydrogen product can be formed without removal of any of the contaminants in the crude stream, thereby creating a more cost effective and simplified supply process compared to conventional processes employing a salt cavern for hydrogen supply.

A process for dewatering tailings having a solids content in the range of about 10 wt % to about 70 wt % is provided comprising fully flocculating the tailings by adding an effective amount of a polymeric flocculant to the tailings and mixing the polymeric flocculant and tailings in a mixing device to form fully flocculated tailings having a minimized capillary suction time (CST) and discharging the fully flocculated tailings into a deposition area at a discharge velocity of substantially zero to minimize further mixing.

A multi-stage pressure regulating method and internet of things (IoT) system for natural gas transmission in a distributed energy pipeline are provided. The method includes: determining a base booster parameter of a target booster station; determining a characteristic booster parameter of the target booster station; generating and sending a booster command to control the target booster station to perform a booster operation on natural gas in at least one downstream pipeline branch; in response to the booster command being executed, obtaining transportation status data of natural gas in at least one pipeline branch in a preset area; in response to the transportation status data not satisfying a preset condition, determining a linkage adjustment parameter of the target booster station and an associated booster station; and generating and sending a linkage adjustment command to update the characteristic booster parameter of the target booster station and the associated booster station.

A multi-stage pressure regulating method and internet of things (IoT) system for natural gas transmission in a distributed energy pipeline are provided. The method includes: determining a base booster parameter of a target booster station; determining a characteristic booster parameter of the target booster station; generating and sending a booster command to control the target booster station to perform a booster operation on natural gas in at least one downstream pipeline branch; in response to the booster command being executed, obtaining transportation status data of natural gas in at least one pipeline branch in a preset area; in response to the transportation status data not satisfying a preset condition, determining a linkage adjustment parameter of the target booster station and an associated booster station; and generating and sending a linkage adjustment command to update the characteristic booster parameter of the target booster station and the associated booster station.