ClassID:

28438

B01D3/146 - CPC Classification

Classification description:

Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping; Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step Multiple effect distillation

Recent Application in this class:
#1
20250345721
2025-11-13

SYSTEMS AND METHODS FOR TREATING SALT SOLUTIONS

#2
20250341054
2025-11-06

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#3
20250296862
2025-09-25

ULTRA-HIGH-CONCENTRATION SEAWATER DESALINATION PROCESS FOR VALUABLE MINERAL RECOVERY AND HIGH-PURITY FRESHWATER PRODUCTION

#4
20250215642
2025-07-03

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#5
20250196020
2025-06-19

EQUIPMENT FOR PRODUCTION OF BUTANOL AND OCTANOL AND TRIPLE-EFFECT DISTILLATION METHOD

#6
20250188005
2025-06-12

THERMAL COUPLING OF A PLANT FOR PREPARING 1,2-DICHLOROETHANE TO A PLANT FOR THERMAL DESALINATION (OF SEA WATER)

#7
20250146217
2025-05-08

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#8
20250091905
2025-03-20

PRODUCTION OF SYNTHETIC HYDROCARBONS

#9
20240359137
2024-10-31

PROCESS OF BRINE CONCENTRATION AND METHOD FOR TREATMENT OF THE SAME

#10
20240316476
2024-09-26

HEAT INTEGRATED PROCESS AND SYSTEM FOR ORGANIC SOLVENT PRODUCTION USING VAPOR RECOMPRESSION

#11
20230234904
2023-07-27

A Separation Method And Reactor System For A Glycol-Water Mixture

#12
20230159418
2023-05-25

Process and Apparatus for distillation

#13
20230125966
2023-04-27

Process and Apparatus for distillation

#14
20230123549
2023-04-20

Heat integrated process and system for ethanol production using vapor recompression

#15
20230105091
2023-04-06

Apparatus for a dividing wall column in an isomerization unit

#16
20220162149
2022-05-26

Acid catalyzed synthesis of methyl acrylate from acrylic acid and methanol

#17
20220153679
2022-05-19

Acid catalyzed synthesis of methyl acrylate from acrylic acid and methanol

#18
20220153667
2022-05-19

Method for producing diol

#19
20220111304
2022-04-14

AUTOMATIC TRITIUM EXTRACTION METHOD FOR ENVIRONMENTAL MONITORING

#20
20220049424
2022-02-17

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#21
20220049423
2022-02-17

Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials

#22
20220049422
2022-02-17

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#23
20220049421
2022-02-17

EFFICIENT METHODS AND COMPOSITIONS FOR RECOVERY OF PRODUCTS FROM ORGANIC ACID PRETREATMENT OF PLANT MATERIALS

#24
20220049420
2022-02-17

Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials

#25
20220017384
2022-01-20

Bubble-Column-Humidification Apparatus and Method

#26
20220009864
2022-01-13

Separation method and reactor system for a glycol-water mixture

#27
20210363075
2021-11-25

Method of refining raffinate-2

#28
20210331944
2021-10-28

System and method for sorbtion distillation

#29
20210268399
2021-09-02

Method and system for batch multi-effect distillation

#30
20210147346
2021-05-20

Production plant for producing a chemical product by reacting H-functional reactants with phosgene, and method for operating same with an interruption to production

#31
20210147317
2021-05-20

Process for N-butanizing field butane feedstock to thermal crackers

#32
20210131033
2021-05-06

Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials

#33
20210094895
2021-04-01

Process and plant for separation of a hydrocarbon mixture

#34
20210087124
2021-03-25

Reactive distillation for forming surfactants

#35
20210078924
2021-03-18

Process for making a feed of normal butanol, iso-butanol and 2-alkyl alkanol

#36
20210002147
2021-01-07

Apparatus and method for treating waste water containing ammonium salts

#37
20200407300
2020-12-31

Method and apparatus for decomposing phenolic by-product

#38
20200385287
2020-12-10

Method for obtaining distillate from non-potable water as well as a device for obtaining distillate from non-potable water

#39
20200308108
2020-10-01

Method of distilling dimethyl sulfoxide and multistage distillation tower

#40
20200277882
2020-09-03

NATURAL GAS LIQUID FRACTIONATION PLANT WASTE HEAT CONVERSION TO POWER USING ORGANIC RANKINE CYCLE

#41
20200271020
2020-08-27

Natural gas liquid fractionation plant waste heat conversion to simultaneous power, cooling and potable water using integrated mono-refrigerant triple cycle and modified multi-effect-distillation system

#42
20200239388
2020-07-30

Process of separating unsaturated hydrocarbons from saturated hydrocarbons with low energy consumption

#43
20200222827
2020-07-16

ACETIC ACID PRODUCT QUALITY IMPROVEMENT

#44
20200173735
2020-06-04

Natural gas liquid fractionation plant waste heat conversion to simultaneous cooling capacity and potable water using Kalina cycle and modified multi-effect distillation system

#45
20200149827
2020-05-14

Natural gas liquid fractionation plant waste heat conversion to simultaneous power and cooling capacities using modified Goswami system

#46
20200140362
2020-05-07

Method and device for purifying acetone/water mixtures by means of double-effect distillation

#47
20200080447
2020-03-12

Natural gas liquid fractionation plant waste heat conversion to simultaneous power and potable water using kalina cycle and modified multi-effect-distillation system

#48
20200063608
2020-02-27

Natural gas liquid fractionation plant waste heat conversion to simultaneous power and cooling capacities using integrated organic-based compressor-ejector-expander triple cycles system

#49
20200040773
2020-02-06

Natural gas liquid fractionation plants low grade waste heat conversion to cooling, power and water

#50
20200040772
2020-02-06

Natural gas liquid fractionation plant waste heat conversion to simultaneous power, cooling and potable water using modified goswami cycle and new modified multi-effect-distillation system

#51
20200039842
2020-02-06

System and method for sorbtion distillation

#52
20200032677
2020-01-30

Natural gas liquid fractionation plant waste heat conversion to potable water using modified multi-effect distillation system

#53
20200001199
2020-01-02

Method for producing alcohol

#54
20190329151
2019-10-31

Network of dividing-wall columns in complex processing units

#55
20190240624
2019-08-08

HYBRID DESALINATION SYSTEM

#56
20190225508
2019-07-25

System and method for desalinization of water using solar thermal energy

#57
20190202763
2019-07-04

Device for manufacturing organic substance and method for manufacturing organic substance

#58
20190176051
2019-06-13

Device for purifying liquids by distillation

#59
20190143244
2019-05-16

Combined multi effect distillation system

#60
20190135728
2019-05-09

Method for purifying an aqueous lactic acid solution

#61
20190126164
2019-05-02

Multiple-effect vapor chamber distillation system and methods of use

#62
20190119126
2019-04-25

System and method for sorbtion distillation

#63
20190084842
2019-03-21

Hybrid desalination systems and associated methods

#64
20190049192
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to simultaneous cooling capacity and potable water using kalina cycle and modified multi-effect distillation system

#65
20190049191
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to power using Kalina cycle

#66
20190049175
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to simultaneous power and potable water using organic Rankine cycle and modified multi-effect-distillation systems

#67
20190048759
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to cooling capacity using kalina cycle

#68
20190048758
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to simultaneous power, cooling and potable water using integrated mono-refrigerant triple cycle and modified multi-effect-distillation system

#69
20190048756
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to power using organic Rankine cycle

#70
20190048755
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to simultaneous power, cooling and potable water using modified goswami cycle and new modified multi-effect-distillation system

#71
20190048754
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to potable water using modified multi-effect distillation system

#72
20190048753
2019-02-14

Natural gas liquid fractionation plant cooling capacity and potable water generation using integrated vapor compression-ejector cycle and modified multi-effect distillation system

#73
20190048752
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to simultaneous power and cooling capacities using integrated organic-based compressor-ejector-expander triple cycles system

#74
20190048751
2019-02-14

Natural gas liquid fractionation plant waste heat conversion to simultaneous power and potable water using Kalina cycle and modified multi-effect-distillation system

#75
20190048369
2019-02-14

Device and method of producing ultra-low sulfur biodiesel

#76
20180345167
2018-12-06

Vacuum distillation and desalination

#77
20180339916
2018-11-29

Coupling photovoltaic, concentrated solar power, and wind technologies for desalination

#78
20180327278
2018-11-15

Multi-stage bubble column humidification and dehumidification

#79
20180305221
2018-10-25

Apparatus and method for treating waste water containing ammonium salts

#80
20180290073
2018-10-11

Chemical recovery by distillation of dilute aqueous solutions produced in advanced bio-fuels processes

#81
20180282683
2018-10-04

Methods and apparatus for separating ethanol from fermented biomass

#82
20180230117
2018-08-16

Part-stream distillation

#83
20180021692
2018-01-25

Process for removing impurities from acetic acid

#84
20180008903
2018-01-11

Distillation processes, distillation units, and systems therefor

#85
20180003432
2018-01-04

Apparatus for the production of air gases by the cryogenic separation of air with variable liquid production and power usage

#86
20180002193
2018-01-04

Method for sorbtion distillation

#87
20170340987
2017-11-30

Distillation processes, distillation units, and systems therefor

#88
20170275182
2017-09-28

Coupling photovoltaic and concentrated solar power technologies for desalination

#89
20170166455
2017-06-15

SOLAR POWERED THERMAL DISTILLATION WITH ZERO LIQUID DISCHARGE

#90
20170114672
2017-04-27

System and method of interfacing intercooled gas turbine engine with distillation process

#91
20170072336
2017-03-16

A METHOD AND APPARATUS FOR MULTI-EFFECT ADSORPTION DISTILLATION

#92
20170044449
2017-02-16

Carbon dioxide fractionalization process

#93
20170029290
2017-02-02

Method for desalination

#94
20170014773
2017-01-19

Multi-effect membrane distillation

#95
20160039683
2016-02-11

Multiple effect concentration swap de-scaling system

#96
20150376097
2015-12-31

Methanol plant and gasoline synthesis plant

#97
20150368121
2015-12-24

Multi-stage bubble column humidifier

#98
20150336024
2015-11-26

Compound distiller

#99
20150336023
2015-11-26

Method for recovering low-temperature heat and application of the method to an aromatics complex

#100
20150329378
2015-11-19

Multi-effect solar distillation system and associated methods

#101
20150321118
2015-11-12

Multi-stage bubble column humidification and dehumidification

#102
20150298024
2015-10-22

System and method of distillation process and turbine engine intercooler

#103
20150251924
2015-09-10

Systems and methods for water desalination and power generation

#104
20150251105
2015-09-10

PROCESS OF SEPARATING UNSATURATED HYDROCARBONS FROM SATURATED HYDROCARBONS WTIH LOW ENERGY CONSUMPTION

#105
20150209686
2015-07-30

Multi-effect solar distiller with multiple heat sources

#106
20150202546
2015-07-23

Process and plant for distillation of methanol with heat recovery

#107
20150175442
2015-06-25

Thermal desalination for increased distillate production

#108
20150129409
2015-05-14

System and method for recycling high-boiling-point waste photoresist stripper

#109
20150075968
2015-03-19

Combined multi effect distillation system

#110
20150068247
2015-03-12

Distillation device

#111
20150060259
2015-03-05

Systems and Methods for Alcohol Recovery and Concentration of Stillage By-Products

#112
20140377137
2014-12-25

System for recycling product streams separated from a hydrocarbon-containing feed stream

#113
20140314634
2014-10-23

Batch process and system for the production of olefins

#114
20140238840
2014-08-28

System and method for recycling high-boiling-point waste photoresist stripper

#115
20140183101
2014-07-03

Carbon dioxide fractionalization process

#116
20140142364
2014-05-22

Aromatic hydrocarbon production apparatus

#117
20140048407
2014-02-20

Multi-effect evaporator

#118
20140034479
2014-02-06

Water purification using energy from a steam-hydrocarbon reforming process

#119
20140034321
2014-02-06

Carbon dioxide fractionalization process

#120
20130202497
2013-08-08

Process and apparatus for recovery of dichlorohydrins via codistillation

#121
20120233920
2012-09-20

Separation of light hydrocarbons and sour species from a sour gas

#122
20120211348
2012-08-23

Process to remove product alcohol from a fermentation by vaporization under vacuum

#123
20120178879
2012-07-12

Process for recycling product streams separated from a hydrocarbon-containing feed stream

#124
20120055776
2012-03-08

Multi effect distiller with falling film evaporator and condenser cells

#125
20120048719
2012-03-01

SILANE DISTILLATION WITH REDUCED ENERGY USE

#126
20110315541
2011-12-29

Methods for alcohol recovery and concentration of stillage by-products

#127
20110233044
2011-09-29

Multi-effect evaporator

#128
20110152580
2011-06-23

PROCESS AND APPARATUS FOR VAPOR PHASE PURIFICATION DURING HYDROCHLORINATION OF MULTI-HYDROXYLATED ALIPHATIC HYDROCARBON COMPOUNDS

#129
20110130604
2011-06-02

SYSTEM AND PROCESS FOR PRODUCING LINEAR ALPHA OLEFINS

#130
20110046425
2011-02-24

Batch process and system for the production of olefins

#131
20100314236
2010-12-16

Method of corrosion prevention

#132
20100258401
2010-10-14

Carbon dioxide fractionalization process

#133
20100243423
2010-09-30

Method of dehydrating tolylenediamine and dehydrator

#134
20100222612
2010-09-02

Method and apparatus for producing purified methyl isobutyl ketone

#135
20100218552
2010-09-02

Apparatus and process for the separation and purification of ideal and non-ideal refrigerant mixtures

#136
20100206743
2010-08-19

Separation process

#137
20100137653
2010-06-03

Process and apparatus for recovery of dichlorohydrins via codistillation

#138
20100137652
2010-06-03

Multi-stage process and apparatus for recovering dichlorohydrins

#139
20100137621
2010-06-03

Process and apparatus for reducing heavy byproduct formation during distillation

#140
20100121081
2010-05-13

Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification

#141
20100105965
2010-04-29

Process and apparatus for azeotropic recovery of dichlorohydrins

#142
20100071410
2010-03-25

DISTILLATION PROCESS USING MICROCHANNEL TECHNOLOGY

#143
20090324796
2009-12-31

Process and system for producing alcohol by split-feed distillation

#144
20090297431
2009-12-03

Multi-stage column distillation (MSCD) method for osmotic solute recovery

#145
20090287014
2009-11-19

Process for production of high-purity diaryl carbonate

#146
20090287012
2009-11-19

Process for production of high-purity diaryl carbonate

#147
20090274606
2009-11-05

PROCESS FOR PRODUCTION OF SILICON TETRAFLUORIDE, AND APPARATUS FOR THE PROCESS

#148
20090270656
2009-10-29

Industrial Process for Producing High-Purity Diol

#149
20090253940
2009-10-08

Method and apparatus for producing purified methyl isobutyl ketone

#150
20090143628
2009-06-04

Industrial process for production of high-purity diol

#151
20090092686
2009-04-09

PROCESS FOR THE RECOVERY OF A PHYTOLIPID COMPOSITION

#152
20090084667
2009-04-02

Process for manufacturing high purity methacrylic acid

#153
20090069615
2009-03-12

METHOD AND EQUIPMENT FOR PREPARING ISOBUTYLENE USING TERTIARY BUTYL ALCOHOL

#154
20080314727
2008-12-25

Microporous membrane for flash distillation

#155
20080283383
2008-11-20

Method for the distillative purification of slow-evaporating fluids

#156
20080245652
2008-10-09

METHOD FOR PURIFYING (METH)ACRYLIC ACID

#157
20080223711
2008-09-18

Industrial Process for Production of Aromatic Carbonate

#158
20080167511
2008-07-10

Carbon dioxide fractionalization process

#159
20080164136
2008-07-10

Multi-effect evaporator

#160
20080138450
2008-06-12

PROCESS FOR THE RECOVERY OF A PHYTOLIPID COMPOSITION

#161
20080135396
2008-06-12

Separation Method

#162
20080128262
2008-06-05

Separation process for methyl acetate hydrolysis and apparatus thereof

#163
20080121512
2008-05-29

Distillation apparatus

#164
20080102014
2008-05-01

Method of recovering ammonia

#165
20080045755
2008-02-21

Industrial Process For Separating Out By-Produced Alcohol

#166
20070293688
2007-12-20

Method for the Separation by Distillation of Pure Trioxane

#167
20070280866
2007-12-06

Cleaving Of Oligomeric (Meth) Acrylic Acid In A Liquid Phase Under Pressure

#168
20070270604
2007-11-22

Process for production of high-purity diaryl carbonate

#169
20070260084
2007-11-08

Industrial Process for Production of High-Purity Diaryl Carbonate

#170
20070256921
2007-11-08

Process for producing (meth) acrylic acids and process for distilling the same

#171
20070255069
2007-11-01

Process for Industrially Producing an Aromatic Carboante

#172
20070240974
2007-10-18

Method of corrosion prevention

#173
20070227875
2007-10-04

Method of Distilling Product Mixtures

#174
20070219387
2007-09-20

Industrial Process for Producing an Aromatic Carbonate

#175
20070191623
2007-08-16

Process for industrial production of an aromatic carbonate

#176
20070155972
2007-07-05

Method for separating trioxane from a mixture containing trioxane, formaldehyde and water

#177
20070131533
2007-06-14

Distillation method

#178
20070068792
2007-03-29

System and method for acetic acid dehydration

#179
20070043217
2007-02-22

Method for the distillative separation of mixtures containing ethyleneamines

#180
20070021633
2007-01-25

Process for producing (meth)acrylic acids and process for distilling the same

#181
20070015938
2007-01-18

Process for manufacturing high purity methacrylic acid

#182
20070000769
2007-01-04

Ethanol distillation with distillers soluble solids recovery apparatus

#183
20060194978
2006-08-31

Method and apparatus for waste stream recovery

#184
20060135826
2006-06-22

Process for recovering methanol

#185
20060094856
2006-05-04

Method for making polycarbonate

#186
20060094854
2006-05-04

Method for making polycarbonate

#187
20060086602
2006-04-27

Purification of N-(2-hydroxyethyl)-2-pyrrolidone

#188
20060065015
2006-03-30

Recovering natural gas liquids from LNG using vacuum distillation

#189
20060016216
2006-01-26

Distillation process using microchannel technology

#190
20060016215
2006-01-26

Distillation process using microchannel technology

#191
20060009657
2006-01-12

Method for purifying (meth)acrylic acid

#192
20050266539
2005-12-01

Apparatus for the production of alcohol

#193
20050258025
2005-11-24

Method for purifying tetrahydrofuran by distillation

#194
20050252761
2005-11-17

Distillative preparation of IPDA having a high cis/trans isomer ratio

#195
20050252760
2005-11-17

Distillation apparatus for readily polymerizable compound

#196
20050240037
2005-10-27

Method for the continuous intermediate separation of the solvent used in the oxirane synthesis with no coupling product

#197
20050176998
2005-08-11

Method for purifying (meth)acrylic acid

#198
20050176997
2005-08-11

Method for purifying (meth)acrylic acid

#199
20050176954
2005-08-11

Process for recovering caprolactam

#200
20050085653
2005-04-21

Method for fractionating grease trap waste and uses of fractions therefrom

#201
20050053712
2005-03-10

Process for the recovery of a phytolipid composition

#202
20050051419
2005-03-10

Process for the recovery of a phytolipid composition

#203
20050044886
2005-03-03

Process for production of isotopes

#204
20050034970
2005-02-17

Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus

#205
20050010063
2005-01-13

Method and apparatus for waste stream recovery

#206
17843985
2023-03-28

Process for the separation of multicomponent mixtures using a prefractionation/main column arrangement

#207
16532474
2020-10-20

Methods for separating components

#208
15687016
2018-05-15

Multiple effect with vapor compression distillation apparatus