Praxair Technology, Inc.

Gregory William Henzler

Jeffert John Nowobilski

Mark William Ackley

Dante Patrick Bonaquist

Robert Leroy Baker

Alan Barnard Stewart

Ryan Anthony Reeder

John David Vogel

Frederick Wells Leavitt

Frank Notaro

Neno T Nenov

Michael Scott Kane

Nancy Rose Cribbin

Himanshu Saxena

Yanan Gan

Michael George Noakes

Alfred Peter Evans

Sabri Deniz

Scott Alan Spriggs

Adam Kenneth Lippert

A gap fairing for a tractor-trailer is provided. A fairing body with an impact absorbing extension is attached to a chassis of the tractor, independently of the cab thereof and within a gap between a cab of the tractor and the trailer. The fairing body has side portions, extending rearwardly from a front portion, adjacent the cab of the tractor, toward the trailer and top portion. A clear panel can be located in at least the side portion of the fairing body located at the passenger side to enable the driver to view the trailer through the rear window of the tractor and the clear panel. A separation space between the front of the fairing body and the cab can be sealed by a sealing element that is at least in part one of resilient and flexible so as to allow relative motion between the fairing body and the cab.

Gap fairing for a tractor-trailer

This invention comprises an adsorption process for the removal of at least NO from a feed gas stream that also contains nitrogen and possibly COand water. In the process the feed stream is passed over adsorbents to remove impurities such as CO2 and water, then over an additional adsorbent having a high NO/Nseparation factor. In a preferred mode the invention is an air prepurification process for the removal of impurities from air prior to cryogenic separation of air. An apparatus for operating the process is also disclosed.

Method and apparatus for gas purification

For PSA or TSA prepurifiers, the temperature rise on adsorption is particularly troublesome when the temperature rise reaches the end of the bed at the end of the adsorption step. This results in an increase in the COand NO concentration at the end of the cycle. Addition of a regenerator in the middle of the adsorption layer will reduce the temperature rise at the end of the bed and thus enhance the performance of the bed.

Adsorption process and system using multilayer adsorbent beds containing regenerator section

A process fluid recycle system for compressor assemblies to recycle process fluid vapor flowing from one or more compressors to gear case(s) through shaft seal(s). The flowing process fluid is recycled back to the low pressure inlet of the compressor assembly by way of a recycle conduit. Coalescing filters are provided to separate oil mist from the process fluid vapor. Oil vapor and water vapor can also be removed, where necessary, by suitable oil and water vapor traps. During startup and shutdown or other times when low pressure transients occur that could cause a back flow of gear oil from the gear case into the compressor(s) by way of the shaft seal(s), an anti-back flow compressor is operated to ensure that the pressure within the gear case will be less than within the compressor.

Process fluid recycle system for a compressor assembly

A method for cryogenic air separation wherein at least a portion of the feed air to the cryogenic air separation plant is partially condensed and the resulting two-phase feed air stream is turboexpanded to produce refrigeration and a resulting two-phase feed air stream, which has a liquid portion less than that of the input two-phase feed air stream to the turboexpander, prior to being passed into the cryogenic air separation plant.

Cryogenic air separation with two phase feed air turboexpansion

A sealing system to prevent loss of a process fluid from a device having a device opening and a rotating member operable for rotational movement within the device opening. A rotary shaft seal such as a labyrinth seal, seals the rotating member in the device opening to inhibit leakage of process fluid. A chamber is connected to the device to recover leakage of the process fluid that leaks from the rotary shaft seal. A barrier seal is connected to the chamber to inject a barrier fluid under pressure to prevent the escape of process fluid from the chamber. The chamber discharges a mixture of barrier and process fluid to a filter, such as a coalescing filter, to separate the barrier fluid from the process fluid. Barrier fluid vapor and water vapor traps can also be used for purification purposes. The barrier fluid is recovered and recycled back to the barrier seal. The process fluid is returned to the device.

Sealing system

A system including pretreating feed air for a cryogenic air separation plant wherein feed air is passed through an electric field, oxygen is ionized, and ionized oxygen reacts with hydrocarbons upstream of an adsorption prepurifier, and subsequent separation of the feed air by cryogenic rectification.

Cryogenic rectification system with corona discharge feed air

The invention comprises a PSA apparatus for the separation of a heavy component from a light component in a feed stream. The apparatus includes an adsorbent bed comprising either a mixture of adsorbents or composite adsorbent particles wherein each particle comprises two or more adsorbents. At least one of the adsorbents is comparatively weak and the other is comparatively strong. Another embodiment of the invention is a PSA prepurifier having a bed of adsorbent material which comprises a mixture of, or composite adsorbent particles wherein each particle comprises at least two adsorbents, at least one of the adsorbents being comparatively strong and at least another of the adsorbents being comparatively weak.

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East Amherst, NY, United States of America

Gregory William Henzler