National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Alcohol Ethoxylate Sulfation in a Microreactor Operated in a Pilot Plant Environment
Stavárek, Petr ; Křišťál, Jiří ; Jiřičný, Vladimír ; Vanhoutte, D. ; Tarchini, R.
The main objective of this paper is to focus on the development of a new intensified reactor for sulfation and/or sulfonation reaction which reduces change-over times and can use much higher SO3 concentrations, thus reducing capital in pre- and post-treatment of the air.
Fulltext: content.csg - Download fulltextPDF
Plný tet: SKMBT_C22014090110394 - Download fulltextPDF
Hydrodynamic Study of the Downward Annular Gas-Liquid Flow under the Pilot Plant Operating Conditions 2013-2014.
Stavárek, Petr ; Křišťál, Jiří
Hydrodynamics of annular liquid flow in a vertical tube with cocurrent gas flow has been studied. Effect of gas - liquid flow rate and liquid viscosity on two-phase flow hydrodynamics was investigated for glycerol – air system. The evaluated parameters were pressure drop and hydrodynamic regime at different gas/liquid ratios.
F3 Factory Deliverable D8.5 on Demonstration Activities in Intensified Surfactant Making
Vanhoutte, D. ; Křišťál, Jiří ; Stavárek, Petr ; Jiřičný, Vladimír ; Haas-Santo, K. ; Tarchini, R.
the continuos report abou of the project completed within the demonstration stage of the F3 Factory project.
WP5 Status Report Months 31 to 50
Křišťál, Jiří ; Stavárek, Petr ; Jiřičný, Vladimír
Within WP5 in this reporting period focused on the development of a new intensified reactor concept for sulph(on)ation reaction. Based on the previous hydrodynamic experiments and mathematical models we designed a new reactor – microSulphonator. We also constructed and manufactured several prototypes that were later tested with model fluids. Experimental data were used for the validation of the models defined previously. Results of this period served as a basis for the final microSulphonators to be tested in the PGB pilot plant during the demonstration phase of the F3 project.
Project Report Beneficiary No.17 ICPF Reporting period: Months 13 to 24 (01 June 2010 to 31 May 2011)
Křišťál, Jiří ; Stavárek, Petr ; Jiřičný, Vladimír
To assess the commercially available SO2 oxidation catalyst and select several for further testing we performed the extensive literature review. Based on that, we tested the selected catalysts for SO2 oxidation in experiments with the KIT lab microreactor, and started the detailed catalyst comparison based on the evaluation of the pre-exponential factor (A0) and activation energy (EA) calculated from the kinetic model by fitting the experimental data. To verify the possible design of a new sulph(on)ation reactor we performed the initial hydrodynamic experiments with gas-liquid two-phase flow in small channels.
Project Report Beneficiary No.17 ICPF Reporting Period: Month 01 to 12 (01 June 2009 to 31 May 2010)
Křišťál, Jiří ; Stavárek, Petr ; Jiřičný, Vladimír
To assess the current state of the art in sulphur dioxide oxidation an extensive literature review including scientific papers, patents and books was started. The literature review is focused on following topics: operation parameters, flow rate, concentration of substrates and impurities, kinetics, catalyst characterization, reaction mechanism and apparatus. Extracted information were evaluated and organized in the form of a data matrix.

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