Air Products and Chemicals, Inc.

Gregory W Henzler

Ghassan Altimany

David Miller Espie

Graeme Richard Wilson

Patrick J Smith

Nicolas John Haryett

Zhong-xiang Zhu

Tito Paratico

Zhong-Xiang (John) Zhu

Paul D Altpeter

Zhong-Xiang (john) Zhu

Zhong-Xiang Zhu

Controlling a capacity of the compression system in response to the variable incoming gas feed by: i) selectively varying a capacity of a first subset of one or more of the compressor trains by continuously varying the capacity of one or more cylinders of the one or more reciprocating compressor stages of the one or more compressor trains of the first subset between a maximum capacity and a minimum capacity; and/or ii) selectively varying a capacity of a second subset of one or more of the compressor trains by fully loading or fully unloading one or more cylinders of the one or more reciprocating compressor stages of the compressor trains of the second subset, wherein the first and second subsets are mutually exclusive.

Method and system for load control of reciprocating compressors

A stable discharge pressure of compressed hydrogen gas generated from the electrolysis of water is achieved and maintained at the outlet of a 'hybrid' multistage compression system comprising at least a first section comprising at least one centrifugal compressor powered at least in part by electricity generated from at least one renewable energy source and a further section downstream of the first section, wherein the further section comprises at least one reciprocating compressor.

Process and apparatus for compressing hydrogen gas in a hybrid compression system

Operation of a multistage compression system comprising at least one centrifugal compressor having a dry gas seal with opposed seal faces, for compressing a gas feed having a variable flow rate is improved by operating the or at least one centrifugal compressor in a low power mode where the opposed faces of the dry gas seal are not in contact during periods when gas flow through the centrifugal compressor(s) is not sufficient for normal operation. Such operation not only reduces damage to the dry gas seals and hence improves reliability, but also reduces the overall power requirement of the overall compression system.

Process and apparatus for operating a compression system

An apparatus and process can be configured for filtering and cooling air to be fed to a gas turbine while also vaporizing at least a portion of fuel to be fed to the gas turbine. Intake air can be passed through a filter house for filtration. While passing through the filtration house, a liquid fuel can be passed through the filter house to be vaporized or partially vaporized therein via heat exchange with the air passing through the filter house, which can also cool the air as it is passing through the filter house. Filtered, cooled air can be output from the filter house for feeding to a gas turbine as an oxidant while the at least partially vaporized fuel can also be output from the filter house for feeding to the gas turbine for being combusted therein.

Apparatus and process for gas turbine air filtration and fuel vaporization

Energy efficiency and/or operational stability of a multistage compression system comprising a plurality (N) of centrifugal compressors that is compressing a gas feed having a variable flow rate is improved by adjusting reversibly the load on each compressor in response to changes in the flow rate of the gas feed using a main recycle system to enable operation of the centrifugal compressors at turndown capacity during periods when the flow rate is below total turndown capacity for all of the compressors, and if necessary, using the local recycle systems in order to avoid activation of anti-surge control, and switching one or more centrifugal compressors into low power mode or shutdown mode as required.

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Emmaus, PA, United States of America

Gregory W Henzler