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US 11,014,039 B2Granted
Nitrogen service supply system
AssigneePraxair Technology, Inc.
InventorsRichard M Kelly, Mahesh Biradar, Matthew J Thomas, George Cieutat
Life of this patent
Estimating the term…
Abstract
The present invention relates to a novel integrated system for providing nitrogen (N2) to a variety of industrial service applications such as, for example, process unit drying, pipeline purging, reactor cooling, vessel inerting, pipeline displacement.
Claims12
An integrated system for providing nitrogen to a temporary industrial service application, comprising:
- at least one mobile pressure swing adsorption unit for providing a baseload of nitrogen fluid having a first specification to a nitrogen service application;
- at least one mobile liquid N2 fed system including liquid N2 transports/trailers disposed upstream of at least one trailer mounted pumper unit or trailer mounted vaporizer unit liquid N2 feed system to provide liquid nitrogen thereto for providing supplemental nitrogen at a second specification to the nitrogen service application, wherein a combined baseload and supplemental nitrogen provide a product nitrogen stream at a predetermined flow rate, temperature, pressure, and purity as required by the industrial service application.
An integrated process for providing nitrogen to a temporary industrial service application, comprising:
- providing a compressed feed stream to at least one mobile nitrogen pressure swing adsorption unit and separating a baseload of nitrogen fluid having a first specification from an oxygen enriched waste steam;
- providing a supplemental nitrogen via a liquid N2 fed system including liquid N2 transports/trailers disposed upstream of at least one trailer mounted pumper unit or trailer mounted vaporizer unit liquid N2 feed system to provide liquid nitrogen thereto wherein the supplemental nitrogen is provided at a second specification, and combining the supplemental nitrogen with a baseload nitrogen fluid producing a product nitrogen stream at a predetermined flow rate, temperature, pressure and purity as required by the industrial service application.
An integrated process for providing nitrogen to a temporary heating service application, comprising:
- providing a compressed air feed stream to at least one mobile nitrogen pressure swing adsorption unit and separating a baseload of nitrogen fluid having a first specification from an oxygen enriched waste steam and where said baseload nitrogen fluid is at a lower temperature than required by the heating application;
- providing a supplemental nitrogen via a liquid N2 fed system wherein the supplemental nitrogen is provided at a second specification and where the supplemental nitrogen is at a higher temperature than required by the heating application, and combining the supplemental nitrogen with the baseload nitrogen fluid producing a product nitrogen stream at a predetermined flow rate, temperature, pressure and purity as required by the heating service application.
An integrated process for providing nitrogen to a temporary cooling service application, comprising:
- providing a compressed air feed stream to at least one mobile nitrogen pressure swing adsorption unit and separating a baseload of nitrogen fluid having a first specification from an oxygen enriched waste steam and where said baseload nitrogen fluid is at a higher temperature than required by the cooling application;
- providing a supplemental nitrogen via a liquid N2 fed system wherein the supplemental nitrogen is provided at a second specification and where the supplemental nitrogen is at a lower temperature than required by the cooling application and combining the supplemental nitrogen with the baseload nitrogen fluid producing a product nitrogen stream at a predetermined flow rate, temperature, pressure and purity as required by the cooling service application.
An integrated process for providing nitrogen to a temporary industrial service application, comprising:
- providing a compressed air feed stream to at least one mobile nitrogen pressure swing adsorption unit and separating a baseload of nitrogen fluid having a first specification from an oxygen enriched waste steam and where said baseload nitrogen fluid is at a lower purity than required by the service application;
- providing a supplemental nitrogen via a liquid N2 fed system wherein the supplemental nitrogen is provided at a second specification and where the supplemental nitrogen is at a higher purity than required by the service application and combining the supplemental nitrogen with the baseload nitrogen fluid producing a product nitrogen stream at a predetermined flow rate, temperature, pressure and purity as required by the service application.
Dependencies are inferred from the claim text.