Distillation column manufacturer (cyclic distillation) efficiency distillation trays types

Cyclic Distillation Technology Maleta Cyclic Distillation LLC OÜ
Pärnu mnt 130-38, 11317 Tallinn, Estonia

© 2014 www.maletacd.com
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About the company
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Maleta cyclic distillation LLC – implementation of turnkey solution for distillation,
reactive distillation, stripping & absorption including design, equipment, installation,
construction service, start-up, post-guaranty service.
•Process modeling - use our technology and services to enhance profitability and gain
competitive advantage by optimizing the design and operation of their process plants.
• Introduction of a new type of equipment which has resulted in a 2 to 4 times more efficient
separation of components and a reduction of 1.5 to 2 times the power input into the process.
•Improving product quality and reduce waste production.
Why choose our company
The benefits
• With minimal financial and time expenditures to get maximum return on profitability.
• The reliable operation of equipment with wide range of capacity.
• Using our technology will allow provide the leading position in the market.

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Industries
• Oil refinery: gasoline, kerosene, diesel, engine oils and others;
• Gas processing: methane, ethane, propane, butane and others;
• Solvents: white spirit, methanol, acetone and other;
• Petrochemical: aromatics (including benzene, toluene and xylene isomers)
and polymers, plastics, resins, fibers, elastomers, lubricants, solvents, detergents..;
• Chemical: esters, aldehydes, acids, particularly friendly products and others;
• Nuclear: separated of isotopes of deferments mixtures.
The distillation process using for separation of inhomogeneous liquid
mixtures in chemical, petrochemical, oil refining, gas processing, organic
synthesis, pharmaceutical, nuclear and other industries:

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• Pilot Plant Testing of Separation Process
• Basic and Detail Design
• Industrial Automation and Control Solution
• Supplier of Mass Transfer Equipment
• Reconstruction of the Existing Column
• Issuance of production schedules
• Installation and Commissioning Work
• Staff Training
• Project Management
• After Sales Service
Service

Technology innovation -
cyclic distillation
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Key economic benefits
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Economic benefits
Lower investment cost
•less column height
•smaller column diameter
•smaller square of the heat exchanger
•less steel construction
•consumes less space

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Economic benefits
•high mass transfer efficiency
• reduction of reflux rate
Lower hot energy consumption 20..30%

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Economic benefits
Lower electricity energy consumption 20…30%
•reduction column height
•lower reflux rate
h1
h2
pump 1 pump 2
h1<h2

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Economic benefits
Less water for cooling
•lower reflux rate
Q1<Q2
Q1
Q2

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Economic benefits
•higher concentration of impurities
•higher and clear concentration of key product
Improvement of product quality
Increase of product yield
•higher concentration of impurities or other fractions
Environment enhancement

Process description of
cyclic distillation system.
Practice
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Schematics illustrating the operation principle of cyclic distillation system:
a) Flow vapor period; b) First half-liquid overflow (tray- airlock);
c) Second half-liquid overflow (airlock - tray below).© 2014
Operation principle of cyclic distillation system
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b) the period of fluid flow (valve closing)a) the period of the vapor (valve open)
3D diagram placement of mass transfer device in
column (D = 560mm)

Conventional columns for distillation
& absorption
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Maleta trays tray dividing-wall columns
+ =

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Dividing-Wall
Installed ½ Part of Column
Tray Dividing-Wall Columns
Tray dividing-wall column (DWC- column)

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Tray dividing-wall column (DWC- column)
Tray Dividing-Wall Column DN 1500/1700

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Reactive –DWC Extractive -DWCAzeotropic -DWCDWC
The configurations of the tray dividing-wall columns for four-component mixtures:
Field of application

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Advantages of Tray Dividing-Wall Columns
• The price of tray dividing-wall columns is much lower than
common DWC-columns (packing distillation columns)
• Mass transfer efficiency by cyclic distillation
• Reduction of the residence time of liquid in the column
• The uniform arrangement of liquid on the tray
• The separation efficiency doesn’t depend on the column diameter
• Any geometric configuration of the trays
• Placement packing between trays
• Better process control
• Simpler column design
• Faster and simpler installation/revamping

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Combination trays:
maleta trays + structured packing

Combination trays:
maleta trays + pall rings

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Combination trays
Technological advantages:
• Possibility to set structured packing between the trays (including a
fluidized layer)
• The increase in the volume mass transfer coefficient is 2-3 times
• Partition bubbling layer on height

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Reactive distillation column:
maleta trays + catalyst

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Reactive distillation column
Technological advantages:
1. Possibility to set catalyst & reactive
distillation between the trays
2.Placement of a catalyst on a trays in a boiling
layer.
3. Ability to control the reaction time.
4. The increase in performance of the
distillation column by minimizing the flow
resistance in the cross-flow of liquid from the
tray on a tray (single-phase fluid flow).

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International congress
• Energy saving technology EMChIE 2010, Belgium
• CHISA 2010, International Congress on Chemical Engineering, Czech Republic
• Distillation & Absorption 2010 , The Netherlands
• ACHEMA 2012, Frankfurt am Main, Germany, 18-22 June 2012
• ECCE 2013, 9th European Congress of Chemical Engineering , the Netherlands
• Distillation and Absorption 2014, Friedrichshafen · Germany.

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Contact information:
Maleta cyclic distillation Limited Liability Company
Pärnumnt 130-38, 11317 Tallinn, Estonia
Website: www.maletacd.com
Mobile: +38 (050) 178-55-50
E-mail: info@maletacd.com

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