Air Products and Chemicals, Inc.

Permea, Inc.

Paul Anthony Webley

Steven R Auvil

Rakesh Agrawal

Rodney John Allam

Timothy Christopher Golden

Scott Jeffrey Weigel

Charles G Coe

Johan Adriaan Martens

James Edward MacDougall

Pierre A Jacobs

Charles F Watson

Joseph Gerard Wehrman

Philip J Young

Wilbur C Katz

Yan Liang Xiong

Charles Franklin Watson

The present invention is a method of selective adsorptively separating nitrogen from oxygen using a crystalline metallosilicate having a ZSM-2 structure with a Si/Al ratio less than 2.0 and a lithium cation exchange of at least 50%, wherein the composition has the chemical formula:

Gas separation with lithium-containing ZSM-2 metallosilicates

A vacuum swing adsorption process for separating a feed gas mixture into a more strongly adsorbable component and a less strongly adsorbable component in a process employing two vacuum pumps and three adsorbent beds containing an adsorbent selective for the more strongly adsorbable component using countercurrent depressurization and cocurrent ambient feed repressurization simultaneous with product end to product end pressure equalization and a common-shaft machinery arrangement which allows the expansion energy contained in the countercurrent depressurization and cocurrent ambient feed repressurization streams to be recovered and utilized to reduce overall process power consumption. Addition of three valves and an expander element will also allow expansion energy in the product purge and pressure equalization streams to be recovered. Oxygen product can be recovered from air at low cost using the process.

VSA adsorption process with energy recovery

The present invention is an apparatus and method for preferentially adsorbing carbon monoxide from a gas stream containing carbon monoxide in the presence of water and potentially ammonia while not adsorbing methane, hydrogen or carbon dioxide which may be present in the gas stream using an adsorbent of a supported cuprous compound situated downstream serially from a pretreatment adsorbent of 3A zeolite which protects the cuprous compound from water. An additional pretreatment layer of a basic metal compound to protect the acid-unstable 3A zeolite layer is also contemplated.

Pretreatment layer for CO-VSA

The present invention provides a process for utilizing one stream from a gas separation unit in an evaporation cooler to provide cool water which is used to cool the feed gas mixture by direct or indirect contact prior to entering the gas separation unit.

Process for cooling the feed gas to gas separation systems

Growing community of inventors

Macungie, PA, United States of America

Paul Anthony Webley