Patent classifications
C
CHEMISTRY; METALLURGY
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C01
INORGANIC CHEMISTRY
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C01B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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2203/00
Integrated processes for the production of hydrogen or synthesis gas
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C01B2203/04
containing a purification step for the hydrogen or the synthesis gas
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C01B2203/0465
Composition of the impurity
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C01B2203/0475
the impurity being carbon dioxide
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