|
|
Gaseous atmospheric contaminants stripping
Kalivoda, Josef ; Kotlík, Josef (referee) ; Svěrák, Tomáš (advisor)
The Diploma thesis is devoted to the absorption of gases by the experimental gas scrubber. The main attention of the theoretical part is focused on the description of absorption, kinetics and the equilibrium between gas and liquid phase. Experimental part is concentrated on the absorption of carbon dioxide to deionized water in the experimental scrubber. Finally, experimental data are discussed.
|
|
|
Creating a fluid curtain of the scrubber absorber
Straka, Ondřej ; Kalivoda, Josef (referee) ; Svěrák, Tomáš (advisor)
This bachelor thesis focused on the separation of gaseous pollutants from gas mixture into absorption agent, by using absorption device. The theoretical part deals with describing absorption device in practice and characterization of chemical and physical influence on absorption process. The experimental part concerned describing the construction and properties of laboratory pilot scrubber.
|
|
| |
|
|
Creating a fluid curtain of the scrubber absorber
Straka, Ondřej ; Kalivoda, Josef (referee) ; Svěrák, Tomáš (advisor)
This bachelor thesis focused on the separation of gaseous pollutants from gas mixture into absorption agent, by using absorption device. The theoretical part deals with describing absorption device in practice and characterization of chemical and physical influence on absorption process. The experimental part concerned describing the construction and properties of laboratory pilot scrubber.
|
|
|
Gaseous atmospheric contaminants stripping
Kalivoda, Josef ; Kotlík, Josef (referee) ; Svěrák, Tomáš (advisor)
The Diploma thesis is devoted to the absorption of gases by the experimental gas scrubber. The main attention of the theoretical part is focused on the description of absorption, kinetics and the equilibrium between gas and liquid phase. Experimental part is concentrated on the absorption of carbon dioxide to deionized water in the experimental scrubber. Finally, experimental data are discussed.
|
|
| |
|
|
Effects of thermal crosslinking treatment on gas separation performance and stability of polymeric membranes
Martin-Gil, V. ; Hrabánek, Pavel ; Sysel, P. ; Fíla, V.
In this work, (4,4’-Hexafluoroisopropylidene) diphthalic anhydride (6FDA), 2,4,6- trimethyl-1,3-diaminobenzene (DAM) and 3,5-diaminobenzoic acid (DABA) were used to synthesize copolyimides with different ratios of DAM:DABA (2:1 and 9:1) as well as polyimide 6FDA-DAM in order to check the influence of acidic group from DABA in the membrane formation process as well as in the crosslinking treatment. The main aim of crosslinking treatment is to improve the CO 2 induced plasticization resistance of the membrane. Copolyimides were synthesized using two steps reaction: (i) synthesis of polyamic acid (PAA) and (ii) thermal imidization in solution. The obtained crosslinked membranes presented solvent resistance due to the transesterification of the polymer. Furthermore, it could be observed that the crosslinked membranes showed higher permeabilities for small gases (He and H 2 ) and for bigger gases (CO 2 and CH 4 ) permeabilities decreased slightly. It can be due to the densification of the membrane during the thermal treatment. However, this treatment presents highly promising results for H 2 recovery in syngas production or extraction of hydrogen from petroleum naphtha cracking streams
|
|
|
Polyimide based membranes for gas separation
Martin-Gil, V. ; Sysel, P. ; Hrabánek, Pavel ; Fíla, V.
The 6FDA-DAM:DABA membranes with different ratio DAM:DABA have been successfully prepared and tested in single gas permeation. The crosslinked membrane prepared by thermal treatment present highly promissing results for H2 recovery in syngas production, extraction of hydrogen from petroleum naphtha cracking streams or other chemical processes where the hydrogen as by product is generated.
|
|
| |
guest ::
