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chemistry (214) 214
science & technology (200) 200
technology (189) 189
metallurgy (186) 186
fuels (176) 176
lubricants (155) 155
peat (155) 155
petroleum, gas or coke industries (155) 155
technical gases containing carbon monoxide (155) 155
engineering (146) 146
engineering, chemical (135) 135
carburetting air or other gases (127) 127
energy & fuels (127) 127
production of producer gas, water-gas, synthesis gas fromsolid carbonaceous material, or mixtures containing these gases (127) 127
gasification (73) 73
coal (72) 72
performing operations (48) 48
transporting (48) 48
analysis (45) 45
general tagging of cross-sectional technologies spanning over several sections of the ipc (45) 45
general tagging of new technological developments (45) 45
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (45) 45
technologies or applications for mitigation or adaptation againstclimate change (45) 45
kohle (43) 43
physical sciences (43) 43
reactivity (42) 42
exact sciences and technology (40) 40
applied sciences (39) 39
pyrolysis (38) 38
combustion (33) 33
compounds thereof (33) 33
inorganic chemistry (33) 33
non-metallic elements (33) 33
carbon (31) 31
chemisches reaktionsvermögen (30) 30
biomass (29) 29
climate change mitigation technologies in the production orprocessing of goods (29) 29
physical or chemical processes or apparatus in general (29) 29
physics (29) 29
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (29) 29
purifying or modifying the chemical composition of combustiblegases containing carbon monoxide (27) 27
heating (26) 26
hochtemperatur (25) 25
bituminous coal (24) 24
energy (23) 23
high-tc (23) 23
thermodynamics (23) 23
kohlenstoff (22) 22
life sciences & biomedicine (22) 22
mechanical engineering (22) 22
carbon dioxide (21) 21
mathematical models (21) 21
natural gas (21) 21
temperature (20) 20
measuring (19) 19
sauerstoff (19) 19
testing (19) 19
blasting (18) 18
lighting (18) 18
weapons (18) 18
adding materials to fuels or fires to reduce smoke orundesirable deposits or to facilitate soot removal (17) 17
catalysis (17) 17
chemical engineering (17) 17
chemiluminescence (17) 17
coal gasification (17) 17
firelighters (17) 17
fuels not otherwise provided for (17) 17
liquefied petroleum gas (17) 17
methane (17) 17
oxygen (17) 17
synthetic natural gas obtained by processes not covered bysubclasses c10g, c10k (17) 17
entrained-flow gasifier (16) 16
kohleschlamm (16) 16
organic chemistry (16) 16
pyrolyse (16) 16
thermogravimetrischer analysator (16) 16
ashes (15) 15
biomasse (15) 15
chemical or physical processes, e.g. catalysis or colloidchemistry (15) 15
kinetics (15) 15
their relevant apparatus (15) 15
vergasung (15) 15
diffusion (14) 14
energy. thermal use of fuels (14) 14
porosity (14) 14
reactors (14) 14
experimental-study (13) 13
experimentalstudie (13) 13
opposed multi-burner (13) 13
particle size (13) 13
agricultural engineering (12) 12
agriculture (12) 12
biotechnology & applied microbiology (12) 12
coal-slurry (12) 12
combustion apparatus (12) 12
combustion processes (12) 12
computer simulation (12) 12
heat transfer (12) 12
separation (12) 12
thermogravimetric-analyzers (12) 12
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