The application of the Higbie model to physical absorption in a disk column

1959 ◽  
Vol 24 (9) ◽  
pp. 2843-2850
Author(s):  
V. Míka
Keyword(s):  
Physical Absorption

ANALYSIS AND MODELLING OF THE SOLUBILITY OF BIOGAS COMPONENTS IN WATER FOR PHYSICAL ABSORPTION PROCESSES

2013 ◽  
Vol 12 (1) ◽  
pp. 147-162 ◽  
Author(s):  
Maria Gavrilescu ◽  
Petronela Cozma ◽  
Walter Wukovits ◽  
Ioan Mamaliga ◽  
Anton Friedl
Keyword(s):  
Physical Absorption

Analysis of observability of model parameters for physical absorption of poorly soluble gases in packed beds

1982 ◽  
Vol 47 (10) ◽  
pp. 2639-2653 ◽  
Author(s):  
Pavel Moravec ◽  
Vladimír Staněk
Keyword(s):  
Transfer Functions ◽  
Plug Flow ◽  
Packed Bed ◽  
Model Parameters ◽  
Packed Bed Column ◽  
Interfacial Transport ◽  
Complex Arithmetic ◽  
Physical Absorption ◽  
Poorly Soluble ◽  
Phase Lags

Expressions have been derived for four possible transfer functions of a model of physical absorption of a poorly soluble gas in a packed bed column. The model has been based on axially dispersed flow of gas, plug flow of liquid through stagnant and dynamic regions and interfacial transport of the absorbed component. The obtained transfer functions have been transformed into the frequency domain and their amplitude ratios and phase lags have been evaluated using the complex arithmetic feature of the EC-1033 computer. Two of the derived transfer functions have been found directly applicable for processing of experimental data. Of the remaining two one is useable with the limitations to absorption on a shallow layer of packing, the other is entirely worthless for the case of poorly soluble gases.

An experimental dynamic method of investigation of counter-current absorption of oxygen in water in a packed bed column

1987 ◽  
Vol 52 (7) ◽  
pp. 1715-1729 ◽  
Author(s):  
Pavel Moravec ◽  
Vladimír Staněk
Keyword(s):  
Transfer Functions ◽  
Simultaneous Detection ◽  
Harmonic Component ◽  
Packed Bed ◽  
Packed Bed Column ◽  
Oxygen Electrodes ◽  
Simultaneous Evaluation ◽  
Physical Absorption ◽  
On Line ◽  
Counter Current

An experimental method and technique are described in the paper of simultaneous detection of the transfer functions outlet-gas-stream-to-inlet-gas-stream and outlet-liquid-stream-to-inlet-gas-stream for the absorption of oxygen into water in a counter-current packed bed column. Both transfer functions were simultaneously monitored by means of three oxygen electrodes operating on the polarographic principle. The signals of these electrodes were processed in three steps to yield parameters of the model of physical absorption of gas. The first step was on-line evaluation of the Fourier coefficients of the principal harmonic component in all three monitored streams. The second step was the calculation of the frequency characteristics of both transfer functions while the third step yielded parameters of the model by optimization in the frequency domain. The method permits simultaneous evaluation of the parameters of the flow of both phases in the column and the interfacial transfer of oxygen.

Highly efficient SO2 capture by dual functionalized ionic liquids through a combination of chemical and physical absorption

2012 ◽  
Vol 48 (20) ◽  
pp. 2633 ◽  
Author(s):  
Guokai Cui ◽  
Congmin Wang ◽  
Junjie Zheng ◽  
Yan Guo ◽  
Xiaoyan Luo ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Highly Efficient ◽  
So2 Capture ◽  
Physical Absorption

scholarly journals Simulation of physical absorption of concentrated gas in a wetted-wall column. Simultaneous analysis of gas and liquid phases.

1985 ◽  
Vol 11 (5) ◽  
pp. 574-580
Author(s):  
Tsuneyuki Sato ◽  
Hidenobu Tsutsumi ◽  
Toshikuni Yonemoto ◽  
Teiriki Tadaki
Keyword(s):  
Simultaneous Analysis ◽  
Liquid Phases ◽  
Physical Absorption ◽  
Wetted Wall Column

Enzyme-embedded metal–organic framework membranes on polymeric substrates for efficient CO2 capture

2017 ◽  
Vol 5 (37) ◽  
pp. 19954-19962 ◽  
Author(s):  
Yiming Zhang ◽  
Huixian Wang ◽  
Jindun Liu ◽  
Jingwei Hou ◽  
Yatao Zhang
Keyword(s):  
Carbonic Anhydrase ◽  
Co2 Capture ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Chemical Bonds ◽  
The Poor ◽  
Physical Absorption ◽  
Metal Organic ◽  
Enzymatic Inactivation ◽  
Polymeric Substrates

In this work, carbonic anhydrase (CA) molecules were embedded into metal–organic frameworks (MOFs) via physical absorption and chemical bonds, which could overcome the enzymatic inactivation and the poor separation property of pristine MOF materials.

scholarly journals Real Nano “Light Vaccine” Will Benefit to COVID-19 Pandemic Control

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jianshe Yang
Keyword(s):  
Near Infrared ◽  
Chemical Nature ◽  
Strong Acid ◽  
Alveolar Type ◽  
Type Ii ◽  
Nir Light ◽  
Physical Absorption ◽  
Acid And Base ◽  
And Control ◽  
Physical And Chemical

AbstractThis highlight presents a recent technique of “Light Vaccine” for COVID-19 pandemic control. Though this technique has the germicidal advantage to SARS-CoV-2, its shortcomings will limit the wide and in-depth application. We make a perspective of real nano light vaccine, which will play an important role in the prevention and control of COVID-19. Briefly, This flow chart described the MWCNT was fabricated with strong acid and base conditional mixture in order to achieve the p-WCNT (chemical process); then modified with RNA layse and receptor binding domain (RBD) by covalent conjugation and physical absorption to get f-WCNT (functionalization); thereafter, f-WCNT was used in the multi-cell culture system interacting with SARS-CoV-2 to identify the special affinity of f-WCNT to ACE2 labeled alveolar type II cells and the inhibition capacity to SARS-CoV-2. This design, is different from the so called “light vaccine”, has the real function to against SARS-CoV-2 by local cellular temperature-rising through photothermal conversion under the near infrared (NIR) light irradiation, according to the physical and chemical nature of carbon nanotubes, and initiates the immune response consequently.

scholarly journals Microorganism adhesion experimental study using silicon dioxide

2018 ◽  
Author(s):  
Roberts Lozins ◽  
Dzintars Ozoliņš
Keyword(s):  
Silicon Dioxide ◽  
Near Infrared ◽  
Gram Negative Bacteria ◽  
Wavelength Interval ◽  
Absorption Properties ◽  
Gram Positive ◽  
Gram Negative ◽  
Suitable Material ◽  
Absorption Of Light ◽  
Physical Absorption

AbstractIn this study, yeast, Gram positive and Gram negative bacteria were attached to silicon dioxide microparticles or silica in order to measure their absorbance, also known as physical absorption of light, changes using spectrophotometry. The goal of the study was to determine if spectrophotometry is an effective way to distinguish microorganisms and if microorganisms have an affinity for silicon dioxide since it is a suitable material for the production of prostheses. The experiment was done by examining the light absorption properties of yeast, Gram positive and Gram negative bacteria in a spectrophotometer with and without silicon dioxide microparticles. During the experiment there have been several promising results. First of all, the spectrophotometers presented graphs of yeast were noticeably different from the graphs of both Gram positive and Gram negative bacteria. Secondly, the absorption of light in both Gram positive and Gram negative bacteria at near infrared (700-1500 nm) wavelengths increased when silicon dioxide microparticles were added to the suspension, unlike yeast. When silicon dioxide microparticles were added to yeast, the absorption of light decreased during the whole wavelength interval of the spectrophotometer measurement. The results indicate that spectrophotometry could be used to distinguish yeast from bacteria and possibly bacteria from each other. The results also suggest that silicon dioxide should not be used in the production of prostheses since it could be a favourable material for the development of biofilms.

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