Room Temperature Ionic Liquids Numerical displaying of extraction with the utilization of ionic fluids for partition of

Jerzy petera faculty of process environmental engineering technical university of d l.jpg
1 / 25
831 days ago, 410 views
PowerPoint PPT Presentation
Presentation - Ionic Liquids. . Salts that are fluid at encompassing temperatures.Have stable fluid scope of more than 300 K.Very low vapor weight at room temperature.Selective dissolvability of water and organics.Potential to supplant unstable natural solvents utilized as a part of processesOften connected with Green Chemistry. Has been a noteworthy main impetus behind the exceptional enthusiasm for ionic fluids.

Presentation Transcript

Slide 1

Room Temperature Ionic Liquids Numerical demonstrating of extraction with the utilization of ionic fluids for detachment of azeotropes within the sight of a high voltage electric field delivering fluid emulsions Jerzy Petera Faculty of Process & Environmental Engineering Technical University of Łódź

Slide 2

Introduction - Ionic Liquids Salts that are fluid at encompassing temperatures . Have stable fluid scope of more than 300 K . Low vapor weight at room temperature . Particular solvency of water and organics . Potential to supplant unpredictable natural solvents utilized as a part of procedures Often connected with Green Chemistry. Has been a noteworthy main thrust behind the extreme enthusiasm for ionic fluids

Slide 3

Alternative Solvents for Process Intensification There is a need to grow all the more earth considerate solvents or utilize solventless frameworks Such solvents ought to supplant poisonous and ecologically perilous and additionally unpredictable solvents Necessary to create and streamline responses conditions to utilize these new solvents and in the meantime amplify yield and limit vitality utilization. Illustrations incorporate utilization of solids or involatile fluids instead of unstable, combustible and earth dangerous natural mixes (VOC).

Slide 4

Why Consider Ionic Liquids as Green Solvents Low softening natural salts (- 60  C) Very low vapor weight (great) Non-combustible (great) Wide fluid range (300  C) (great) Moderate to high consistency (awful) Solvent properties unique in relation to sub-atomic solvents (great and awful) Solvent properties can be controlled by determination of anion and cation – henceforth regularly named originator solvents (great).

Slide 5

Designer solvents - adaptability of picking utilitarian gatherings to make ionic fluids Halide-based (Cl - , Br - , F - ) Halogeno-based (BF 4 - , PF 6 - ) Halogenoaluminium(III) Alkylammonium Alkylphosphonium Alkylnitride N , N '- dialkylimidazolium N - alkylpyridinium NO 3 - , ClO 4 - ,HSO 4 - SO 3 - , CF 3 SO 3 - (CF 3 SO 2 ) 2 N - (CF 3 SO 2 ) 3 C - anion Organic cation

Slide 6

+ N R 1-alkyl - 3-methylimidazo l ium is the most well-known cation With R = C 4 to C 8. , R 1 = C 4

Slide 7

Biocatalysis in Ionic Liquids In numerous chemical catalyzed responses in water the rate is constrained by optional hydrolysis Many responses go to consummation when ionic fluid (mass part 30 %) included Lipase catalyzed transesterification responses happen in 99 % mass portion ionic fluids with tremendously enhanced sterioselectivity at higher temperatures – henceforth quicker responses

Slide 8

Industrial Processes with Ionic Liquids

Slide 9

Ionic Liquid Publications

Slide 10

Ionic Liquid Patents Total: 699

Slide 11

Extractive Distillation and Breaking Azeotropes IL have more prominent fondness for a few segments in a blend Results in an adjustment in the movement coefficients that as a rule upgrades division No IL in distillate Arlt claims that all practically azeotropes can be broken by the right choice of an ionic fluid - Gmehling and Krummen, DE10154052 - Arlt et al., DE10136614/WO2002074718

Slide 12

Influence of [EMIM][BF 4 ] on ethanol + water VLE at 363.15 K W. Arlt, AIChE, 11/02

Slide 13

Influence of [EMIM][BF 4 ] on the Tetrahydrofuran + water VLE at 337.15 K W. Arlt, AIChE, 11/02

Slide 14

Breaking Azeotrope with IL Pure An A + C + IL Pure C Pure IL C + IL

Slide 15

Use of Ionic Liquids in IL-Based Industrial Processes Challenges in recreating IL forms: Simulation bundles, for example, AspenTech not furnished to manage one of a kind properties of ILs Lack of physical and thermodynamic information on the immense cluster of ILs Potential Solutions: Creation of IL Database in light of expanding writing test information Development of correlative and prescient models for: Physical properties of ILs and their blends Phase equilibria of IL blends Numerical reproduction bundles for demonstrating and plan of mass contactors

Slide 16

Ionic fluid shower in electric field Electric potential controls the scattering: the greater voltage, the littler bead distance across. 1 kV 2 kV 4 kV Emulsion offers the best interface zone and best mass swapping scale. 3) 2) 1)

Slide 17

Experimental Reactor

Slide 18

A CFD reproduction strategy

Slide 19

Computational work for the contactor and the limit conditions

Slide 20

Preliminary reenactment comes about The electric potential field (go from 0 to −40 kV) in the test contactor exhibited in Fig. 2. Equipotential surfaces in 3D geometry with cases of bead directions, (2) forms in the contactor centerline 2D area.

Slide 21

Preliminary Simulation comes about The bead scattering reproduced by method for the cloud show. (1) 3D picture of mists, (2) 2D segment of similar mists with the bead fixation shapes. Figured additional c t focus profiles in the cont on-screen character after 2 h.

Slide 22

Preliminary Simulation comes about Calculated concentrate focus profiles in the new contactor geometry (four anodes and four passes on arranged as on the privilege, after 2 h at connected electrical potential −4 kV. See from the base side and (3) see from the top. Much better fixation conveyance is clear!

Slide 23

Plan of activity During this venture, understudies must finish taking after undertakings: Literature audit on conceivable ionic fluid with the attention on isolating azeotropic blend of natural parts and their ecological impact  Economical appraisal of ionic fluids use versus the conventional natural solvents  Learning a few nuts and bolts of numerical displaying e.g. show detailing Building singular segment geometry and limit conditions utilizing business programming ANSYS™  Computations for the section proficiency assessment Analysis of the outcomes and figuring proposals for genuine examinations

Slide 24

Summary Industrial procedures including ionic fluids are in an early phase of advancement Established as helpful fluids for responses, divisions, and as electrolytes Research is still youthful and significantly more should be done Great open doors for new improvements and applications

Slide 25

Ionic fluids offer incredible chances to be utilized as a part of Green procedures Ionic fluids can give profoundly new process arrangements Potential applications include: responses with inorganic and bio catalysis, detachments including refining processes, extraction, fluid parceling, gas partitions, electrochemistry, fluid gems, and so on. Ionic fluid carry on positively in electric field offering high interface territory improvement Numerical recreation apparatuses offer intense means for ideal contactor outline.