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Class Number: 95
Class Title: GAS SEPARATION: PROCESSES
Subclass Subclass
Number Title
1 WITH CONTROL RESPONSIVE TO SENSED CONDITION
2 .Electric or electrostatic field (e.g., electrostatic
precipitation, etc.)
3 ..Concentration sensed
4 ..Temperature sensed
5 ..Sparking sensed
6 ..Current sensed
7 ..Voltage sensed
8 .Concentration sensed
9 ..pH sensed
10 ..Humidity sensed
11 ..Flow of fluid mixture to sorber stopped or diverted to other
equipment, or sorbent regenerated
12 ..Gas flow rate modified
13 ..Sorbent flow rate modified
14 .Temperature sensed
15 ..And pressure sensed
16 ..Modification of flow rate of liquid which is added to gas
17 ..Cooling
18 ..Heating
19 .Pressure sensed
20 ..Apparatus cleaned
21 ..Sorbent regenerated
22 ..Gas flow rate modified
23 .Gas flow rate sensed
24 .Liquid level sensed
25 WITH RECORDING OR SIGNALING CONDITION
26 WITH TIMING OF OPERATION
27 MAGNETIZED PARTICLE BED
28 MAGNETIC SEPARATION
29 SOUND WAVES USED
30 .Degasification of liquid
31 DIFFERENCE IN MOLECULAR VELOCITY, DENSITY, OR MOMENTUM OF GASES
USED
32 .Passing gases through nozzle
33 ..Directing gas streams toward one another
34 .Centrifugal force
35 ..Created by rotating equipment
36 LIQUID-SOLID SLURRY USED
37 .Organic compound removed from gas
38 .Halogen containing compound removed from gas
39 COMPRESSING AND INDIRECT COOLING OF GASEOUS FLUID MIXTURE TO
SEPARATE
40 .And use of heat absorbing agent
41 .And solid sorption
42 .And liquid contact (e.g., scrubbing, sorption, etc.)
43 SELECTIVE DIFFUSION OF GASES
44 .Selective diffusion of gases through immobilized liquid
45 .Selective diffusion of gases through substantially solid
barrier (e.g., semipermeable membrane, etc.)
46 ..Degasification of liquid
47 ..Nitrogen or nitrogen containing compound permeates barrierr
48 ..Halogen containing compound permeates barrier
49 ..Sulfur containing compound permeates barrier
50 ..Organic compound permeates barrier
51 ..Carbon dioxide or carbon monoxide permeates barrier
52 ..Water vapor permeates barrier
53 ..Helium permeates barrier
54 ..Oxygen permeates barrier
55 ..Hydrogen permeates barrier
56 ...Elemental metal or alloy barrier
57 ELECTRIC OR ELECTROSTATIC FIELD (E.G., ELECTROSTATIC
PRECIPITATION, ETC.)
58 .With addition of solid, gas, or vapor
59 ..Electrode treating (e.g., coating, cleaning, etc.)
60 ..Heating or cooling
61 ..Solid is electrically conducting
62 ..Agglomerating gas-borne particles
63 .And nonelectrical separation of fluid mixture
64 ..Liquid addition to gaseous fluid mixture
65 ...Liquid addition precedes electrical precipitation
66 ....With heating or cooling
67 ..By heating or cooling
68 ..Including cleaning or regeneration of separating means (e.g.,
particulate bed filter, deflector, etc.)
69 ..Distinct separation step precedes electric or electrostatic
treatment
70 ..Distinct separation step follows electric or electrostatic
treatment
71 .With addition of liquid to gaseous fluid mixture
72 ..Vaporization of liquid
73 .With heating or cooling
74 .With cleaning of collector electrode
75 ..By liquid flushing
76 ..By scraping or vibrating
77 .Continuously moving electrode
78 .Including baffling, deflection, or restriction of gas flow
79 .Plural separate stages or zones (e.g., separate ionization and
collection regions, etc.)
80 ..Pulsing or time-varying electric field (e.g., AC, pulsed DC,
etc.)
81 .Pulsing or time-varying electric field (e.g., AC, pulsed DC,
etc.)
82 CHROMATOGRAPHY
83 .Liquid supported on surface of capillary column
84 .Liquid supported on particulate packing
85 .Including use of gas flow distributor in column
86 .Plural separate columns
87 .With heating or cooling
88 .Specific column packing or sorbent material (e.g., particle
size, composition, etc.)
89 .Injection, per se, without separation
90 SOLID SORPTION
91 .Soluble or deliquescent material used
92 .And liquid contact (e.g., scrubbing, sorption, etc.)
93 ..Sweep gas used on solid sorbent
94 ..And recycle or reuse of contact liquid for further contact
95 .Including reduction of pressure
96 ..Plural pressure varying steps (e.g., pressure swing
adsorption, etc.))
97 ...Sweep gas used
98 ....Feed gas or constituent thereof is sweep gas
99 .....With heating or cooling
100 .....Stepped pressure reduction
101 ......Vacuum applied
102 .....Vacuum applied
103 ...Stepped pressure reduction
104 ..Sweep gas used
105 ...Feed gas or constituent thereof is sweep gas
106 ..With heating or cooling
107 .Moving sorbent
108 ..Fluidized bed
109 ...Having gravity flow of sorbent from zone to zone
110 ..Gravity flow of sorbent from zone to zone
111 ...Sweep gas used
112 ....Steam is sweep gas
113 ..Rotating housing containing fixed sorbent or rotating
plurality of housings
114 .With plural indirect heat transfer steps on solid sorbent or
gaseous fluid mixture or constituent thereof
115 ..Heating and cooling
116 .Inorganic gas or liquid particle sorbed (e.g., vapor, mist,
etc.)
117 ..Water sorbed
118 ...Plural separating treatments of gas by solid sorbent to
remove water
119 ....And regeneration of any solid sorbent
120 .....Heating or cooling
121 ...And regeneration of solid sorbent
122 ....Sweep gas used
123 .....Hot sweep gas
124 ......And cooling of sweep gas
125 ......And cooling of solid sorbent
126 ....By heating
127 ..Noble gas sorbed
128 ..Nitrogen containing compound sorbed
129 ...Nitrogen oxide sorbed
130 ..Nitrogen sorbed
131 ..Halogen or halogen containing compound sorbed
132 ...Chlorine or chlorine containing compound sorbed
133 ..Metal or metal containing compound sorbed
134 ...Mercury sorbed
135 ..Sulfur containing compound sorbed
136 ...Hydrogen sulfide sorbed
137 ...Sulfur dioxide or sulfur trioxide sorbed
138 ..Oxygen or ozone sorbed
139 ..Carbon dioxide sorbed
140 ..Carbon monoxide sorbed
141 .Organic gas or liquid particle sorbed (e.g., vapor, mist,
etc.)
142 ..Halogen containing compound sorbed (e.g., phosgene, etc.)
143 ..Hydrocarbon sorbed
144 ...Alkene sorbed
145 ...Alkyne sorbed (e.g., acetylene, etc.)
146 ...Gasoline sorbed
147 ...Benzene ring containing compound sorbed
148 .And regeneration
149 LIQUID CONTACTING (E.G., SORPTION, SCRUBBING, ETC.))
150 .Including foaming of liquid to aid in the separation
151 .Mechanical agitation of liquid body to contact gaseous fluid
mixture
152 .Coagulating or flocculating agent
153 .Hydrate inhibitor
154 .Surfactant or wetting agent
155 .Defoaming or antifoaming agent
156 .And degasification of a liquid
157 ..Defoaming
158 ..Degasification step occurs first, with removed gas
subsequently contacted by liquid
159 ..By stripping with gas
160 ...And reduction of pressure (e.g., flashing, etc.)
161 ....And heating
162 .....Steam is stripping gas
163 ....Liquid recycled or reused
164 ....Feed gas or constituent thereof is stripping gas
165 ...And heating
166 ....Liquid recycled or reused
167 ....Vaporized component of contact liquid is stripping gas
168 ....Steam is stripping gas
169 ...Liquid recycled or reused
170 ...Air is stripping gas
171 ...Inert stripping gas
172 ..By reduction of pressure (e.g., flashing, etc.)
173 ...And heating
174 ....Liquid recycled or reused
175 ...Vacuum applied
176 ...Removed gas recycled
177 ...Liquid recycled or reused
178 ..By heating
179 ...Liquid recycled or reused
180 ....Liquid cooling step before being recycled
181 ...Sulfur compound removed
182 ...Halogen compound removed
183 ...Carbon dioxide removed
184 ...Organic compound removed
185 ..By liquid flow modifying or mechanical agitating
186 ..Liquid recycled or reused
187 .And recycle or reuse of contact liquid for further contact
188 ..After separation of liquid from contact liquid
189 ...And separation of solid from contact liquid
190 ...By liquid-liquid extraction or formation of azeotrope
191 ...By stripping with gas
192 ...By reduction of pressure (e.g., flashing, etc.)
193 ...By heating (e.g., fractional distillation, etc.)
194 ....Indirect heat exchange
195 ..After separation of solid from contact liquid
196 ...By filtration
197 ...By gravity separation
198 ..And deflection to remove liquid particles from gas
199 ..Liquid contact in plural serial stages
200 ...Removal of solid or liquid particles from gas
201 ...Reduction of pressure during liquid contact
202 ..Removal of solid or liquid particles from gas
203 ..Reduction of pressure
204 .And recycle of gas for further contact
205 .And separation of solid from contact liquidd
206 .And separation of liquid from contact liquid
207 ..By stripping with gas
208 ..By reduction of pressure (e.g., flashing, etc.)
209 ..By heating (e.g., fractional distillation, etc.)
210 .On surface extending mass
211 ..Particulate media, fibrous media, or packing elements
212 ...And cleaning of particulate media, fibrous media, or packing
elements
213 ..Apertured partition member
214 .And filtration of gas
215 ..Including movement of filter
216 .And deflection
217 ..Liquid is in form of curtain
218 ..Including movement of deflector
219 ..Including rotation of liquid, gaseous fluid mixture, or
gas-liquid mixture through 360 degrees in stationary
apparatus
220 ...With heating or cooling
221 ..Deflection in plural serial stages
222 ...Using diverse type deflectors
223 .In plural serial stages
224 ..Liquid sprays
225 ...With heating or cooling
226 .Gaseous fluid mixture discharged against or beneath surface of
liquid body
227 .With heating
228 .With cooling
229 ..Cooling before liquid contacting
230 .Inorganic gas, liquid particle, or solid particle sorbed (e.g.,
vapor, mist, dust, etc.)
231 ..Water sorbed
232 ..Nitrogen or nitrogen containing compound sorbed
233 ..Halogen or halogen containing compound sorbed
234 ..Metal or metal containing compound sorbed
235 ..Sulfur or sulfur containing compound sorbed
236 ..Carbon dioxide sorbed
237 .Organic gas, liquid particle, or solid particle sorbed (e.g.,
vapor, mist, dust, etc.)
238 ..Alkyne sorbed (e.g., acetylene, etc.)
239 ..Cyclic compound sorbed
240 ..Alkene sorbed
241 DEGASIFICATION OF LIQUID
242 .Defoaming
243 .Plural successive degassing treatments
244 ..Boiler feed water degassing
245 ..By stripping with gas
246 ...And reduction of pressure (e.g., flashing, etc.)
247 ..By reduction of pressure (e.g., flashing, etc.)
248 ...And liquid flow modifying or mechanical agitating
249 ....And heating
250 ...And heating
251 ..By heating
252 ...And liquid flow modifying or mechanical agitating
253 .Emulsion breaking or multiple liquid separating
254 .And subsequent handling of evolved gas, stripping gas, or
residue liquid
255 ..Evolved gas removed by sweep gas
256 ..For indirect heat exchangee
257 ...Gas condensed
258 ..Gas recycled or further separated
259 ..Liquid further separated
260 .By liquid flow modifying or mechanical agitating
261 ..Centrifugal force
262 ..Impinging on baffle
263 .By stripping with gas
264 ..Steam is stripping gas
265 ..Nitrogen is stripping gas
266 .By reduction of pressure (e.g., flashing, etc.)
267 DEFLECTING
268 .And filtering
269 .Centrifugal force
270 ..Created by rotating equipment
271 ..Tangential gas inflow (e.g., cyclone, etc.)
272 .Tortuous flow path
273 FILTERING
274 .Through particulate solids
275 ..Moving bed
276 ..With cleaning of filter bed
277 .Moving filter
278 .With cleaning of filter
279 ..By use of gas
280 ...Pulsed gas flow
281 ..By use of liquid
282 ..By mechanical manipulation
283 .With heating of filter
284 .And reduction of pressure
285 .Coated or chemically treated filter
286 .Plural separate media
287 ..In series
288 HEAT EXCHANGING
289 .Cold wall-hot wall thermal diffusion
290 .Condensing to solid
291 MISCELLANEOUS
* ******************************
* CROSS-REFERENCE ART COLLECTIONS
* ******************************
900 SOLID SORBENT
901 .Activated carbon
902 .Molecular sieve
903 ..Carbon