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US 7,407,381 B2Granted
Combustion apparatus and methods for making and using same
AssigneePAC, Inc.
InventorFranek Olstowski
Life of this patent
Estimating the term…
Abstract
A combustion apparatus is disclosed that improves oxidation efficiency without increasing either combustion apparatus size or residence time, where the apparatus includes a combustion zone having a static mixing zone along a length of the combustion zone.
Claims27
An analytical instrument apparatus comprising:
- a sample supply system,
- an oxidizing supply system,
- a combustion or furnace apparatus comprising:
- an inlet,
- an outlet,
- a combustion zone including
- a mixing zone comprising a static mixer disposed along a length of the combustion zone downstream of the inlet, and
- a heater, and
- a detector/analyzer unit,
- where the supply systems are adapted to supply a sample and an oxidizing agent to the inlet of the combustion apparatus, the heater is adapted to maintain the combustion zone including the mixing zone at an elevated temperature sufficient to substantially completely oxidize the sample into oxides, the static mixer is exposed to combustion temperatures and is adapted to reduce channeling of portions of an oxidizing mixture as it traverses the combustion zone, and the detector/analyzer is adapted to determine a concentration of at least one oxide and relate the oxide concentration back to a concentration of an element in the sample.
7 more elements
A method for oxidizing a combustible material comprising the steps of:
- feeding the combustible material and an oxidizing agent to a combustion apparatus comprising an inlet, an outlet, a combustion zone including a mixing zone comprising a static mixer disposed along a length of the combustion zone downstream of the inlet, and a heater for heating the combustion zone, and
- heating the combustion zone including the mixing zone to a temperature sufficient to covert all or substantially all oxidizable components in the combustible material into their corresponding oxides,
- where the static mixer is exposed to combustion temperatures and is adapted to reduce channeling of portions of an oxidizing mixture as it traverses the combustion zone and where the mixing zone increases an efficiency of combustion of the combustion zone.
A method for analyzing a sample comprising the steps of:
- feeding the sample and an oxidizing agent to a combustion apparatus comprising an inlet, an outlet, a combustion zone including a mixing zone disposed along a length of the combustion zone downstream of the inlet, and a heater for heating the combustion zone,
- heating the combustion zone including the mixing zone to a temperature sufficient to covert all or substantially all oxidizable components in the combustible material into their corresponding oxides, and
- forwarding the oxides to an detector/analyzer, and
- detecting a concentration of at least on oxide,
- where the static mixer is exposed to combustion temperatures and is adapted to reduce channeling of portions of an oxidizing mixture as it traverses the combustion zone and where the mixing zone increases an efficiency of combustion of the combustion zone and where the detector/analyzer relates the oxide concentration back to a concentration of an element in the sample.
2 more elements
Dependencies are inferred from the claim text.