Tuesday, 22 December 2015



Cyclic distillation process has following phase interaction mode - while the vapor passes through the column, the liquid doesn’t flow from tray to tray, and if the liquid flows over, it is not mixed on adjacent trays. In this case, the liquid flow (feed, reflux, distillate and bottom product) moves in a continuous mode. This method was named the controlled cyclic mode. Cyclic distillation operation consisting of two key parts: vapor flows goes through the distillation column and the stationary liquid stays on the trays (Fig. 1a), and this is called the vapor flow period, while the liquid flow period arises when vapor flow is stopped and the liquid holdup in sluice chambers (Fig. 1b), the vapor flow period starts and liquid from sluice chambers falls into the tray below (Fig. 1c).

➽ The time interval from the start till the finish of vapor supply is called the vapor period (VP) and the time interval from the start till the finish of liquid flow – liquid period (LP). The time of each liquid and vapor phase flow is, in total, the full time of cycle (TC):

TC=VP+TC                                                                                                                              (1)

➽ The design algorithm of a Maleta tray is as follows: the requirement as to the absence of liquid overflow on the trays during vapor supply is performed on hollow type trays while the vapor speed exceeds the column flooding. The requirement as to the absence of liquids mixing on adjacent trays during liquid overflow is ensured by means of a sluice chamber located under the tray. Cyclic distillation column works in the follow way: liquid flows (feed, reflux) are continuously supplied to the tray. 

➽ During vapor supply, the liquid doesn’t overflow from tray to tray for the speed of vapor in the column exceeds the column flood speed. The controlling influence on liquid overflow from tray to tray is exercised by vapor, the cut in the supply of which for a couple of seconds allows the liquid to overflow from the tray bubbled cloth to the sluice chamber. Subsequent vapor supply opens the sluice chamber and the liquid flows to the empty tray below. Such sequence of actions takes place synchronically on all trays on the column’s height. 

Friday, 20 November 2015

Innovation & Distillation Service

Maleta cyclic distillation llc is implementation of turnkey solution for distillation, reactive distillation, stripping & absorption. Our company manufacturing process equipment at the Ukrainian and Estonian factories according Ukraine, Russia, European and American standards.

Technology innovation
Technological capabilities of our distillation column significantly exceed the capacity of conventional columns. Our column has resulted in a 3 to 4 times more efficient separation of components and reduction energy consumption at 20…35% into the process. Technology innovation approved by USA, European, Eurasian, Russian and Ukrainian patents, International Congress and Publications.

Key economic benefits from cooperation with our company  
·         Lower investment cost 20…50%
·         Lower hot energy consumption 20…35%
·         Lower cold energy consumption 20…35%
·         Improvement of product quality
·         Increase of product yield
·         Environment enhancement

List of Service and Equipment

·         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
·         Installation and commissioning work
·         Staff training
·         Project management
·         After sales service

Market application
Increased interest to cyclic distillation technologies at ethanol, chemical, petrochemical, oil refining, gas processing, organic synthesis, pharmaceutical, and other industries.

Wednesday, 21 October 2015

Renovation of White Spirit Plant

Our company proposes two cases of revamping existing white spirit production. First case – we fully revamp existing technology. Second case – we are installation additional equipment for current white spirit system. The volume of revamping deepens from correct technology. As result of revamping we remove small and aromatic from white spirit and factory produce low aromatic white spirit according international SGS certification.  There are no problems with application different raw materials (quality of kerosene). 

 Our system provides to optimum yield and quality of white spirit, operation 8/24 or 24/7 (batch and continuous operation modes). Our turn-key white spirit plant solutions have individual design. We supplier advanced techniques solution that give to you opportunities have leading position on the market

Friday, 18 September 2015

Dividing Wall Column

Cut Capital and Energy Cost of your Next Revamp with Dividing Wall Column. Renovation Service

➽ Our company specializes in developing, designing and implementation of mass transfer equipment and engineering systems. Our equipment always designed and manufactured in an optimal ratio price / quality and with using the latest advances in science and technology. 

Benefits of Cooperation with Maleta cyclic distillation LLC: 
  • Our clients receive highest profitability of the production with minimal financial and time investments 
  • Improving product quality and reduce waste production
  • The reliable operation of equipment with wide range of capacity
  • Using our technology “cyclic distillation process” will allow provide the leading position in the market

➽ The combination of our knowledge, experience and scientific innovations enable us to provide our customers with unique solutions and maximize the financial profitability 

➽ One of our cases of service is replacement service. It is include: feasibility studies, column and tray design, process simulation, pilot plant testing, plant optimization, installation, start-up and staff training, guaranty service. 

➽ Today, for our client we will propose - transform your traditional two-column system to one dividing wall column. Maleta cyclic distillation is propose new solution in dividing wall column (DWC) technology – to use our high efficiency tray dividing wall columns. DWC technology represents a mechanical implementation of fully thermally coupled distillation that not only saves significant amounts of energy but is both more efficient and cost effective than conventional distillation methods.

➽ Thus the choice for your technology process a Maleta tray dividing wall column for today it‘s not really a risk, neither for construction nor for plant operation.

Thursday, 20 August 2015

Renovation your Conventional Two-column System to One Dividing Wall Column

 Dividing Wall Column

One of the more effective methods renovations of existing distillation columns is using DWC technology, in this case we have reduced capital and energy costs compared to a traditional two-column system. 

Maleta cyclic distillation LLC is propose to renovation existing two columns in your technological process for one DWC-column using Maleta distillation trays. As result of renovation you will get energy saving up to 30%; minimum project investment; efficient use of all existing equipments (heat exchangers, condensers, reboilers, tanks, pumps and others instrumentation ); minimum time of renovation; improvement of product quality; increase of product yield. Our trays in dividing wall column have any geometric configuration and the uniform arrangement of liquid on the distillation tray.
Maleta cyclic distillation LLC
We supply only proven technology solutions for your production. It include: feasibility studies for energy saving and purity improvements of final products; column simulations and design; pilot plant testing; plant optimization; installation or supervision; start-up work; staff training; guaranty service.

Wednesday, 5 August 2015

Distillation Colum Revamping

Reduce your column high at 2.0 times and energy consumption at 30 % with Maleta Trays. Distillation Column Revamping

➤ Modern requirements to the distillation process are more stringent energy consumption and the quality of the final products. Many of existing distillation column being revamped to more efficiency that gives opportunities to have energy saving, improvement of product quality and increase of product yield.  Some of columns should be absolutely revamped for new one and some of them can be change column internals. In case of revamping column internals/trays we can use existing installation, heat exchangers, condensers, reboilers, tanks, pumps and others instrumentation. Column revamps need individual approach and should goes step-by-step.

➤ Maleta cyclic distillation LLC is propose to revamping your column internals to high efficiency Maleta trays. As results you will have: reduce column high at 1.5 … 2.0 times; reduce energy consumption at 20… 30 %; improvement of product quality; increase of product yield. Innovation design of trays provides simpler and faster revamping and more stability operation. 
➤ Our services are included: plant audit, simulation and optimization; pilot plant testing feasibility studies; individual solutions; process integration; design and manufacturing of Maleta distillation trays; installation; start-up; staff training; guarantied and post-guaranteed service.

Thursday, 25 June 2015

Thank you for visiting our booth and lecture at ACHEMA 2015

✹ From 15-th to 19-th June 2015 - Frankfurt am Main, Germany our company pass exhibition stand at Groups Research and Innovation at ACHEMA 2015.

➽ It was our pleasure and honor and we enjoyed many inspiring conversations. We have been impressed by the number of visitors and the great interest in our cyclic distillation technology, especially for operation principle and technological benefits of our system. By Dr. Bogdan Maleta held a lecture at section Energy Efficient Processes - “Open new opportunities of distillation columns through cyclic distillation technology”. 

➽ At our booth at ACHEMA 2015 we presented cyclic distillation column (cold stand) that have has 5 distillation trays. It was demonstrated key technological benefits of our cyclic distillation like: reduction of the residence time of liquid in the column; the uniform arrangement of liquid on the tray; ability to control the amount of liquid on the tray; placement any type of packing between trays for rise mass transfer efficiency. 

➽ Partition bubbling layer on height; the pressure drop in the column does not depend from change liquid load in the column, since the amount of liquid on the trays is constant; and others.  If you have further questions or you wish more information about our technology and services, please feel free to 

Contact us at mail:  info@maletacd.com  ✉
Give us a call on    +38 050 178 555 0    ☎