Matheson Tri-gas, Inc.

Virginia H Houlding

Dan Fraenkel

Hans Heinrich Funke

Robert Torres, Jr

Joseph V Vininski

Harold G Spicer

A system and method for processing a matrix fluid to remove one or more impurities (such as moisture from a process gas). The purifier includes a pre-cooler that receives the matrix fluid and cools the matrix fluid to a second, lower temperature. A container is provided to contain a purifier element made up of a high surface area material. The container includes an inlet for receiving the matrix fluid from the pre-cooler and an outlet for outputting the matrix fluid after it is forced to flow through the purifier element. The purifier includes a cooler in thermal contact with an outer surface of the container to cool the outer surface of the container to a purifying temperature, which is selected to be below the ambient temperature and above a phase change point of the matrix fluid and is typically in the range of about 0 to &#x2212;200&#xb0; C.

Fluid purification system with low temperature purifier

Trace impurities such as organic compounds and carbon monoxide are reduced to sub-ppb levels in gases such as nitrogen, helium and argon, by gas purifying systems that contain an ultra-low emission (ULE) carbon material. Ultra-low emission (ULE) carbon materials is capable of removing impurities from a gas stream down to parts-per-billion (ppb) and sub-ppb levels without concurrently emitting other impurities such as moisture or carbon dioxide to the purified gas stream. The carbon material is superactivated by heating the carbon to temperatures between 300-800&deg; C. in an ultra-dry, inert gas stream. The ultra-low emission (ULE) carbon material is handled and stored in an environment that minimizes contamination from moisture and other oxygenated species in order to maintain its ppb and sub-ppb impurity removal and low emission properties.

Method for removing impurities from process gas stream

A gas purifier system containing an ultra-low emission (ULE) carbon material for reducing trace impurities such as organic compounds and carbon monoxide to sub-ppb levels in gases such as nitrogen, helium and argon. Ultra-low emission (ULE) carbon materials is capable of removing impurities from a gas stream down to parts-per-billion (ppb) and sub-ppb levels without concurrently emitting other impurities such as moisture or carbon dioxide to the purified gas stream. The carbon material is superactivated by heating the carbon to temperatures between 300-800&deg; C. in an ultra-dry, inert gas stream. The ultra-low emission (ULE) carbon material is handled and stored in an environment that minimizes contamination from moisture and other oxygenated species in order to maintain its ppb and sub-ppb impurity removal and low emission properties.

Gas purifier system containing an ultra-low emission carbon material

Gas purifier system containing a preconditioned ultra-low emission (P-ULE) carbon for reducing trace impurities such as organic compounds and carbon monoxide in reactive fluids such as ammonia, hydrogen chloride, hydrogen bromide, and chlorine to sub-ppb levels. P-ULE is capable of removing impurities from a reactive fluid down to parts-per-billion (ppb) and sub-ppb levels without concurrently emitting other impurities such as moisture or carbon dioxide into the purified reactive fluid. The P-ULE carbon is prepared by heating a carbon material to temperatures between about 300&deg; C. to 800&deg; C. in an ultra-dry, inert gas stream, to produce an ultra-low emission (ULE) carbon material, subjecting the ULE carbon to a second activation process under a reactive gas atmosphere to produce a P-ULE carbon and storing the P-ULE carbon in an environment that minimizes contamination of the P-ULE prior to its use in a gas purifier system.

Gas purifier system for removing trace impurities from a reactive fluid

Trace impurities such as organic compounds and carbon monoxide in reactive fluids such as ammonia, hydrogen chloride, hydrogen bromide, and chlorine are reduced to sub-ppb levels using gas purifying systems that contain a preconditioned ultra-low emission (P-ULE) carbon. P-ULE is capable of removing impurities from a reactive fluid down to parts-per-billion (ppb) and sub-ppb levels without concurrently emitting other impurities such as moisture or carbon dioxide into the purified reactive fluid. The P-ULE carbon is prepared by heating a carbon material to temperatures from 300&deg; C. to about 800&deg; C. in an ultra-dry, inert gas stream, to produce an ultra-low emission (ULE) carbon material, subjecting the ULE carbon to a second activation process under a reactive gas atmosphere to produce a P-ULE carbon and storing the P-ULE carbon in an environment that minimizes contamination of the P-ULE prior to its use in a gas purifier system.

Method for producing a preconditioned ultra-low emission carbon material

Method for producing an ultra-low emission carbon material

Method for reducing trace impurities from a reactive fluid using preconditioned ultra-low emission carbon material

Trace impurities such as organic compounds and carbon monoxide in reactive fluids such as ammonia, hydrogen chloride, hydrogen bromide, and chlorine are reduced to sub-ppb levels using gas purifying systems that contain a preconditioned ultra-low emission (P-ULE) carbon. P-ULE is capable of removing impurities from a reactive fluid down to parts-per-billion (ppb) and sub-ppb levels without concurrently emitting other impurities such as moisture or carbon dioxide into the purified reactive fluid. The P-ULE carbon is prepared by heating a carbon material to temperatures from 300&deg; to about 800&deg; C. in an ultra-dry, inert gas stream, to produce an ultra-low emission (ULE) carbon material, subjecting the ULE carbon to a second activation process under a reactive gas atmosphere to produce a P-ULE carbon and storing the P-ULE carbon in an environment that minimizes contamination of the P-ULE prior to its use in a gas purifier system.

Method and materials for purifying reactive gases using preconditioned ultra-low emission carbon material

Trace impurities such as organic compounds and carbon monoxide are reduced to sub-ppb levels in gases such as nitrogen, helium and argon, by gas purifying systems that contain an ultra-low emission (ULE) carbon material. Ultra-low emission (ULE) carbon materials can be made from commercially available carbon materials in the form of pellets, extrudates and beads and is capable of removing impurities from a gas stream down to parts-per-billion (ppb) and sub-ppb levels without concurrently emitting other impurities such as moisture or carbon dioxide to the purified gas stream. The carbon material is superactivated by heating the carbon to temperatures from 300&deg; to about 800&deg; degrees C. in an ultra-dry, inert gas stream. The ultra-low emission (ULE) carbon material is handled and stored in an environment that minimizes contamination from moisture and other oxygenated species in order to maintain its ppb and sub-ppb impurity removal and low emission properties. The ultra-low emission (ULE) carbon material can be used as &ldquo;stand-alone&rdquo; purifier material or in combination with other scavenging materials that are capable of removing large quantities of impurities such as oxygen and moisture that are not removed or only marginally removed by the ultra-low emission (ULE) carbon material.

Growing community of inventors

Boulder, CO, United States of America

Virginia H Houlding