Process and system for purifying gases
AssigneePraxair Technology, Inc.
InventorsCharles Edward Terbot, Andrew Christopher Mackie
Life of this patent
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Abstract
This invention is directed to a system and a process for protecting a gas purification system from damage comprising passing a stream of impure gas through a catalyst bed and measuring the temperature difference before and after the catalyzed bed reaction through a data analyzer to determine the impurity of the gas prior to controlling the feed of impure gas into or out of a reactor for producing a purified gas. In a preferred embodiment, the catalytic beds may be in parallel form, and the plurality of temperature measurements before and after the catalytic beds is considered by a data analyzer for controlling the impure gas for feeding into the purification reactor.
Claims20
A process for protecting a gas purification system from damage comprising:
- a) passing a first impurity-containing gas stream into a data analyzer flow scheme;
- b) passing a second reactant-containing gas stream into the analyzer flow scheme;
- c) mixing said first impurity-containing gas stream with the second reactant-containing gas stream to form a mixed gas stream;
- d) passing said mixed gas stream to a first temperature measuring device to determine its temperature and passing the resulting temperature data to a data analyzer;
- e) passing the mixed gas stream from step d) to a catalytic bed to allow the reaction in the mixed gas stream to proceed, and forming a reacted mixed gas stream;
- f) passing the reacted mixed stream to a second temperature measuring device to determine its temperature and passing the resulting temperature data to said data analyzer;
- and
- g) controlling the flow of the first impurity-containing gas stream passing to or from the gas purification apparatus based on data received from the data analyzer.
A process for protecting a gas purification system from damage comprising:
- a) passing a first impurity-containing gas stream into a data analyzer flow scheme and a gas purification apparatus;
- b) passing a second reactant-containing gas stream into the analyzer flow scheme;
- c) mixing said first impurity-containing gas stream with the second reactant-containing gas stream to form a mixed gas stream;
- d) separating the mixed gas stream into a plurality of split streams;
- e) passing one of the split streams to a first temperature measuring device to determine its temperature and passing the resulting temperature to a data analyzer;
- f) passing the resulting split stream from step e) to a reaction vessel to purify said resulting split stream;
- g) passing the resulting split stream from step f) to a second temperature measuring device to determine its temperature and passing the resulting temperature to the data analyzer;
- h) repeating the steps of e) to g) with another split stream through corresponding temperature measuring devices and reaction vessels;
- and
- i) controlling the flow of the first impurity-containing gas stream passing to the gas purification apparatus based on data received from the data analyzer.
A system for protecting a gas-purification system from damage comprising:
- a) a first impure gas stream;
- b) a second reactant containing gas stream;
- c) a reactor vessel;
- d) a plurality of temperature measuring devices to measure the temperature of said mixture of first impure gas stream and second reactant containing gas streams before and after the gas flow in said reactor vessel;
- e. a data analyzer for analyzing the temperature difference of said mixture of first impure gas stream and second reactant containing gas streams before and after the gas flow in said reactor vessel and controlling the flow of said first impure gas stream.
Dependencies are inferred from the claim text.