Abstract: A synthesis plant (309A) includes a compression device (360A) that increases a pressure differential between the bottom product pressure of a cryogenic separator (340A) and the delivery pressure of the bottom product to a downstream plant component. Such increased pressure differential is employed to increase cooling in the separator (340A) to thereby significantly reduce the volume of excess air. In most preferred aspects, at least part of the energy required for the compression device is provided by expansion (320A) of the separator feed.

Abstract: An acid gas removal plant includes an absorber that provides a rich solvent to two regenerators that independently generate a lean and a semi-lean solvent, wherein the semi-lean solvent is produced in one of the regenerators using heat and/or steam derived from the other regenerator. Further heat integration is particularly contemplated with power plants in which the power plant provides high-level heat to the acid gas removal plant and wherein the power plant receives low-level heat from the acid gas removal plant.

Abstract: A mechanism for sharing files, and sets of related files, or packages of files, in a multi-host, multi-platform environment is provided. A public package client handles user requests to perform operations on a software package. Additionally, information about the package and the files contained therein may be obtained. A server, responsive to the client, performs the operations on the package. Data about the files is set in a data structure which may be stored in an archive along with the files themselves. In particular, this data may identify each file as either a text or binary file and as an executable file. A client may access the aforementioned data to determine if the file or files require further processing to adapt the file to the operating system on the client. Such processing may, for example, include linefeed/carriage return translation and codepage translation, or setting file attributes.

Abstract: An IGCC plant has a precombustion decarbonization unit in which acid gas is removed from a combustion gas before the combustion gas enters a combustion turbine. In one preferred configuration, a sulfur removal unit removes hydrogen sulfide from a feed gas before the desulfurized feed gas enters an autorefrigeration unit in which carbon dioxide is removed. In another preferred configuration, hydrogen sulfide is converted to carbonyl sulfide in a dryer, and the carbonyl sulfide is absorbed in the liquid carbon dioxide that is prepared from the feed gas using autorefrigeration.

Abstract: A pressure differential of a feed gas (110) between a compressor (120) and expander (160) is employed to cool the feed gas to condense and remove at least a portion of one component to produce a partially depleted feed gas from which another component may then be removed. In especially preferred aspects, the feed gas comprises C2-C5 hydrocarbons and hydrogen, wherein the hydrocarbons are condensed in the cooler and hydrogen is removed using a pressure swing adsorption unit (180).

Abstract: An acid gas removal plant includes an absorber that provides a rich solvent to two regenerators that independently generate a lean and a semi-lean solvent, wherein the semi-lean solvent is produced in one of the regenerators using heat and/or steam derived from the other regenerator. Further heat integration is particularly contemplated with power plants in which the power plant provides high-level heat to the acid gas removal plant and wherein the power plant receives low-level heat from the acid gas removal plant.

Abstract: Contemplated configurations and methods include a hydrogen pressure swing adsorption unit that receives a feed gas comprising a hydrogen production stream and a non-recycled hydrogen-containing waste stream.

Abstract: A mechanism to build public file packages across multiple hosts and platforms is provided. A file package is created and builder processes (or simply “builders”) distributed among the hosts build a file set into the package. The builder may be represented by an executable file deployed on the host that may be, but is not necessarily, the target of the file set. A set of builders may be associated with a particular file package and invalid builders may be precluded from “working” on the package. A build event may be associated with the build and triggered when all builders have completed their respective builds.

Abstract: A mechanism for sharing files, and sets of related files, or packages of files, in a multi-host, multi-platform environment is provided. A public package client handles user requests to perform operations on a software package. Additionally, information about the package and the files contained therein may be obtained. A server, responsive to the client, performs the operations on the package. Data about the files is set in a data structure which may be stored in an archive along with the files themselves. In particular, this data may identify each file as either a text or binary file and as an executable file. A client may access the aforementioned data to determine if the file or files require further processing to adapt the file to the operating system on the client. Such processing may, for example, include linefeed/carriage return translation and codepage translation, or setting file attributes.

Abstract: Contemplated configurations and methods include a hydrogen pressure swing adsorption unit that receives a feed gas comprising a hydrogen production stream and a non-recycled hydrogen-containing waste stream.

Abstract: A synthesis plant (200) includes a separation system upstream of a synthesis loop that removes excess nitrogen and other gaseous compounds from a feed gas having a ratio of hydrogen to nitrogen of less than 3:1, thereby producing a syngas with a ratio of hydrogen to nitrogen at about 3:1. Particularly preferred separation systems include a coldbox (270) with a refrigerant other than air, or a pressure swing absorption system.

Abstract: A gas separation apparatus and process has a first pressure swing adsorption (PSA) unit (110) receiving feed gas (112), which comprises a first and a second component. First PSA unit (110) produces first product gas (114) pre-dominantly containing the first component, and first off gas (116) containing at least some of the first component and second component. Compressor (120) is coupled to first PSA unit (110) to compress first off gas (116) to form compressed off gas (126), which is passed downstream to absorber unit (130), which employs a solvent to remove at least part of the second component from compressed off gas (126), forming an enriched compressed off gas (136B). Second PSA unit (140) receives enriched compressed off gas (136B) and produces second product gas (142) which predominantly contains the first component and a second off gas that is sent to waste or reformer burner (150).

Abstract: A gas production plant has a first separator receiving a feed gas and produces a first offgas stream and a first product stream, and a second separator receives the first offgas stream and produces a second product stream and a second offgas stream. A liquefaction unit receives at least part of the first product stream and at least part of the second offgas stream, and produces a third product stream and a third offgas stream. A first portion of the third offgas stream is combined with the first offgas stream, and a second portion of the third offgas stream is used as a non-waste gas. In a method of removing a first and a second gaseous component from a feed gas, a PSA unit produces a first product stream and a first offgas stream. The first offgas stream is fed into a liquefaction unit that produces a second product stream and a second offgas stream, and at least part of the second offgas stream is recycled into the PSA unit.

Abstract: A gas production plant has a first separator receiving a feed gas and produces a first offgas stream and a first product stream, and a second separator receives the first offgas stream and produces a second product stream and a second offgas stream. A liquefaction unit receives at least part of the first product stream and at least part of the second offgas stream, and produces a third product stream and a third offgas stream. A first portion of the third offgas stream is combined with the first offgas stream, and a second portion of the third offgas stream is used as a non-waste gas. In a method of removing a first and a second gaseous component from a feed gas, a PSA unit produces a first product stream and a first offgas stream. The first offgas stream is fed into a liquefaction unit that produces a second product stream and a second offgas stream, and at least part of the second offgas stream is recycled into the PSA unit.

Abstract: Carbon Dioxide is separated from other gases using autorefrigeration. In general, a feed gas containing Carbon Dioxide is compressed (100), and then expanded (250) to produce work. Carbon Dioxide in the feed gas is liquefied, and the liquefied Carbon Dioxide is then separated (282) from other components that remain gaseous. While all commercially viable embodiments are contemplated, embodiments are preferred in which the claimed methods and apparatus provide significant commercial advantages over the prior art. For example, it is preferred that feed gases are employed in which the Carbon Dioxide concentration is at least 40%, more preferably at least 60%, and still more preferably at least 80%. All percentages herein are given in mole percent. It is also preferred that feed gases be compressed to at least 15 bar absolute in all applications, at least 30 bar absolute in some embodiments, and at least 60 bar absolute in other embodiments.