In this subclass, tradenames that are often found in scientific and patent literature have been used in order to define precisely the scope of the groups. [6]
(2)
Attention is drawn to the definitions of groups of chemical elements following the title of section C. [3]
Hydrogen; Hydrides; Water; Synthesis gas from hydrocarbons
3
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00
Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it (separation of gases by physical means B 01 D); Purification of hydrogen (production of water-gas or synthesis gas from solid carbonaceous material C 10 J; purifying or modifying the chemical compositions of combustible gases containing carbon monoxide C 10 K) [3]
3
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02
•
Production of hydrogen or of gaseous mixtures containing hydrogen [3]
3
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04
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•
by decomposition of inorganic compounds, e.g. ammonia [3]
3
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06
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•
by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents (by electrolysis of water C 25 B 1/04) [3]
3
/
08
•
•
•
with metals [3]
3
/
10
•
•
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•
by reaction of water vapour with metals [3]
3
/
12
•
•
•
by reaction of water vapour with carbon monoxide [3]
3
/
14
•
•
•
•
Handling of heat and steam [3]
3
/
16
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•
•
•
using catalysts [3]
3
/
18
•
•
•
•
using moving solid particles [3]
3
/
20
•
•
•
by reaction of metal hydroxides with carbon monoxide [3]
3
/
22
•
•
by decomposition of gaseous or liquid organic compounds (coking liquid carbonaceous materials C 10 B 55/00) [3]
3
/
24
•
•
•
of hydrocarbons [3]
3
/
26
•
•
•
•
using catalysts [3]
3
/
28
•
•
•
•
using moving solid particles [3]
3
/
30
•
•
•
•
•
using the fluidised bed technique [3]
3
/
32
•
•
by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air [3]
3
/
34
•
•
•
by reaction of hydrocarbons with gasifying agents [3]
3
/
36
•
•
•
•
using oxygen or mixtures containing oxygen as gasifying agents [3]
3
/
38
•
•
•
•
using catalysts [3]
3
/
40
•
•
•
•
•
characterised by the catalyst [3]
3
/
42
•
•
•
•
•
using moving solid particles [3]
3
/
44
•
•
•
•
•
•
using the fluidised bed technique [3]
3
/
46
•
•
•
•
using discontinuously preheated non-moving solid materials, e.g. blast and run [3]
3
/
48
•
•
•
•
followed by reaction of water vapour with carbon monoxide [3]
3
/
50
•
Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification (C 01 B 3/14 takes precedence) [3]
3
/
52
•
•
by contacting with liquids; Regeneration of used liquids [3]
3
/
54
•
•
•
including a catalytic reaction [3]
3
/
56
•
•
by contacting with solids; Regeneration of used solids [3]
