摘要:
An inventory management method is also provided. This method includes removing and replacing the gas product from a first salt cavern as supply and demand dictate, analyzing the impurities in the gas product that is removed, predicting the duration until a maximum acceptable impurity limit is present, removing all the working gas from the first salt cavern when the maximum acceptable impurity limit is reached, then replacing the working gas in the first salt cavern, while concurrently, removing and replacing the gas product from a second salt cavern as supply and demand dictate, analyzing the impurities in the gas product that is removed, predicting the duration until a maximum acceptable impurity limit is present, removing all the working gas from the second salt cavern when the maximum acceptable impurity limit is reached, then replacing the working gas in the second salt cavern, while concurrently repeating steps a)-g).
摘要:
A method and apparatus is provided which will provide over-pressure protection for an underground storage cavern by reducing the pressure of a pressurized gas stream originating from the an underground storage cavern to form a lower pressure gas stream, monitoring the pressure of a lower pressure gas stream and stopping the flow of the lower pressure gas stream to the pipeline should the pressure of the lower pressure gas stream exceed a threshold value.
摘要:
A method and apparatus is provided which will improve the integrity of a pipeline by removing moisture and solid particulates that have been entrapped within a gas originating from an underground storage cavern following pressure reduction before introducing the gas into the pipeline.
摘要:
A method of maintaining pressure in an underground storage volume during transient operation is presented. Including storing a first compressible fluid, determining a safe minimum operating pressure (Pmin), and a safe maximum operating pressure (Pmax), measuring the pressure (Pact), removing or introducing the first compressible fluid, and concurrently, introducing or removing an incompressible wherein the flow rate of the incompressible fluid is controlled such that Pmin
摘要:
A method and apparatus is provided which will improve the integrity of a pipeline by removing moisture and solid particulates that have been entrapped within a gas originating from an underground storage cavern following pressure reduction before introducing the gas into the pipeline.
摘要:
Techniques are disclosed for monitoring the consumption of a plurality of metered resources. The techniques involve receiving a KYZ pulse from a first utility meter, where the first utility meter is coupled to a source of one of the metered resources, and where the first utility meter outputs the KYZ pulse based on a predefined amount of metered resource being passed through the utility meter. A first counter is incremented, where the first counter is associated with the utility meter and stored in a memory.
摘要:
The present invention is a method of minimizing the emissions of carbon dioxide from a reformer furnace flue gas to the high pressure syngas exit water gas shift reaction unit. Including heating a first gas mixture by indirect heat exchange with one or more of an SMR furnace flue gas or an SMR furnace syngas, further heating the pre-reformed mixture in a primary reformer, thereby generating a second gas mixture comprising hydrogen, carbon monoxide, carbon dioxide, and a flue gas. Introducing the gas mixture into a standard H2 PSA unit, wherein the gas is separated into a hydrogen enriched stream and a PSA tail gas stream, and introducing PSA feed or tail gas stream into a carbon dioxide removal system, wherein the flue gas is separated into a residual flue gas stream and a carbon dioxide enriched stream.
摘要:
An energy generation system including a primer mover producing a power output, and a combustion product outlet stream; and a steam generator wherein a water inlet stream and the combustion product outlet stream exchange heat to produce at least one steam outlet stream is provided. The steam generator further comprises at least one set of supplemental burners situated in the path of the combustion product outlet stream, and a hydrogen fuel inlet stream at least a portion of which is combusted in at least one of the supplemental burners or the prime mover.
摘要:
This present invention provides a method to more efficiently recover hydrogen and carbon dioxide, preferably at least 50%, even more preferably at least 75%, and most preferably at least 90% of the carbon dioxide. The present invention further provides the design for capture of at least 80%, carbon dioxide from syngas that allows for the simultaneous production of medium to high amounts of hydrogen in the syngas as a part of the production of hydrogen in a hydrogen generation plant. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation units to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and two hydrogen membrane separation units are utilized.
摘要:
A process for the production of cellulose based biofuels is provided. This process includes pyrolysing a cellulose-containing feedstock to form a slurry of bioliquids and char; hydrocracking the slurry to produce a hydrocarbon gas stream, a hydrocarbon liquid stream, an impurities stream, and a residue stream; distilling the liquid hydrocarbon stream to produce at least a naphtha stream, and a diesel stream; and gasifying the residue stream to produce at least a hydrogen and a carbon monoxide stream.