Processes, apparatuses, and systems for capturing pigging and blowdown emissions in natural gas pipelines
AssigneeNext Carbon Solutions, LLC
InventorsIvan Van Der Walt, Ben Heichelbech, Connor Rivard, Vikrum Subra
Life of this patent
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Abstract
Disclosed are processes, apparatuses, and systems in natural gas pipelines to significantly reduce pigging and blowdown emissions. In an example, a process involves filtering and/or separating pigging or blowdown emissions. The filtered and/or separated pigging/blowdown products can then be stored in a storage, sent back into the natural gas pipeline at a downstream location, or sent to an adjacent pipeline.
Claims19
A process for capturing blowdown emissions in a natural gas pipeline, the process comprising:
- sending a blowdown gas to a compressor, wherein the blowdown gas is removed from a gas stream in the natural gas pipeline, and wherein the blowdown gas is transported out of the natural gas pipeline through a blowdown valve;
- compressing the blowdown gas;
- and
- sending the compressed gas back into the natural gas pipeline at a location downstream of the blowdown valve to recombine the compressed gas with the gas stream flowing inside the natural gas pipeline.
A process for capturing blowdown emissions in a natural gas pipeline, the process comprising:
- sending a blowdown gas to a compressor, wherein the blowdown gas is removed from a gas stream in the natural gas pipeline, and wherein the blowdown gas is transported out of the natural gas pipeline through a blowdown valve;
- filtering the blowdown gas, wherein filtering the blowdown gas comprises removing solids or liquids;
- and
- compressing the filtered blowdown gas.
A process for capturing blowdown emissions in a natural gas pipeline, the process comprising:
- sending a blowdown gas to a compressor, wherein the blowdown gas is removed from a gas stream in the natural gas pipeline, and wherein the blowdown gas is transported out of the natural gas pipeline through a blowdown valve;
- separating the blowdown gas using at least one separator, wherein separating the blowdown gas comprises separating a solid or a liquid from the blowdown gas;
- and
- compressing the separated blowdown gas.
A process for capturing blowdown emissions in a natural gas pipeline, the process comprising:
- sending a blowdown gas to a compressor, wherein the blowdown gas is removed from a gas stream in the natural gas pipeline, and wherein the blowdown gas is transported out of the natural gas pipeline through a blowdown valve;
- compressing the blowdown gas;
- and
- sending the compressed gas into an adjacent natural gas pipeline transporting another gas stream in the adjacent natural gas pipeline to combine the compressed gas with the other gas stream.
Dependencies are inferred from the claim text.