Absorption of gases [by] V. M. Ramm. Translated from Russian by R. Kondor. Translation edited by D. Slutzkin. by VitaliД­ Maksimovich Ramm

Cover of: Absorption of gases [by] V. M. Ramm. | VitaliД­ Maksimovich Ramm

Published by Israel Program for Scientific Translation in Jerusalem .

Written in English

Read online


  • Gases -- Absorption and adsorption

Book details

LC ClassificationsQC182 R2813
The Physical Object
Number of Pages648
ID Numbers
Open LibraryOL18501419M

Download Absorption of gases [by] V. M. Ramm.

Ramm. VEB Verlag Technik, - Gases - pages. 0 Reviews. From inside the book. What people are saying - Write a review. We haven't found any reviews in the usual places. Contents. Abhängigkeit Absorber absorbiert Absorption Absorptionsmittel Abtreiben Ammoniak Angaben.

Gas Processing and Utilization [13] Conf, I Insh Group of Instn Chem Engrs, April [14] Souders Jr M and Brown G G md Engng Chem 26 98 [15] Ramm V M, Absorptionnye Protessy y Khimicheskoi Prom yshlennosti Goskhimizdat, Moscow APPENDIX The concentrations b~, appearing in the definition of a, are dimensional, and so is in general Cited by: The book consists of two parts: the theory of absorption and the calculation of absorbers.

Part I covers basic knowledge on diffusion and the theory of mass transfer in binary and multicomponent systems. Significant stress is laid on diffusion theory because this forms the basis for the absorption process.

RAMM V. M., GasAbsorption (in Russian). Moscow Resume-Le faux d'absorbtion de bi-oxyde de carbone dans des solutions tampons de carbonatebicarbonate de potassium, qui contiennent de l'hypochlorite de sodium et du chlorure de potassium, a ete determine de maniere experimentale pour un tamis de 30,5 x 30,5 cm de by:   The effect of the convective term caused by high mass transfer rates in adiabatic absorption with or without chemical reaction and solvent evaporation Cited by: 1.

The absorption of gaseous ammonia (NH3), sulfur dioxide (SO2), and carbon dioxide (CO2) by water in a rotating cellular-porous disk medium has been experimentally studied.

Data on the degree of air cleaning from these impurities are obtained, which Absorption of gases [by] V. M. Ramm. book indicative of an anomalously high solubility (exceeding equilibrium values) of indicated gases in water under conditions studied. lations of De Saussure, Fourier, M. Pouillet, and Mr.

Hopkins, on the transmission of solar and ter-restrial heat through the earth’s atmosphere. This gave practical effect to a desire which I had previ-ously entertained to make the mutual action of radiant heat and gases of all kinds the subject of an experimental inquiry.

amount of gas that would be in the pores (ˆ gV p) if the gas were present at the density of the bulk gas. The actual or absolute amount of gas in the pores (n a) is obtained by correcting for the previous over-correction: n a= n e+ ˆ gv p () where v p= V p=m s.

which the gas flow is introduced in the bottom of the column and the liquid solvent is introduced in the top of the column. The mathematical analysis for both the packed and plated columns is very similar. L x t A,t L x b A,b V y t A,t V y b A,b L V Figure Countercurrent absorption Absorption of gases [by] V.

M. Ramm. book. 10 4. Gaseous absorption in the UV. Table Wavelengths of absorption in the solar spectrum (UV + visible) by several atmospheric gases Gas Absorption wavelengths (m)N 2.

The results obtained using simple models of combined heat and mass transfer in nonisothermal vapor or gas absorption by aqueous solutions are generalized. The models take into account specific properties of two-phase binary systems used in absorbers of thermotransformers (heat pumps and refrigerators).

Some authors have already cited certain of the results, including criterial. Gas Absorption Objectives for Gas Absorption 1.

Find the gas flooding velocities under different inlet water flow rates (L 2) and determine the operating range of the column. Investigate and analyze the performance of a gas absorption column by calculating the number of transfer units (NTU) and empirically determine the. Gas adsorption is of major importance for the characterisation of a wide range of porous materi-als.

Of all the many gases and vapours, which are readily available and could be used as adsorptives, nitrogen has remained universally pre-eminent. With the aid of user-friendly commercial equip-ment and on-line data processing, it is now possi. Keywords: Packed column, modeling, simulation, gas-absorption, Q-Basic, carbon dioxide - sodium hydroxide system.

Introduction Chemical reactor design is based on the modeling of reactors and of the reactions that take place in them (Levinspiel ). A mathematical model is a simplified image of. Certain gases in the atmosphere have the property of absorbing infrared radiation.

Oxygen and nitrogen the major gases in the atmosphere do not have this property. The infrared radiation strikes a molecule such as carbon dioxide and causes the bonds to bend and vibrate - this is called the absorption.

The knfluence of irreversible chemical reactions on gas sbsorption denotes that the corresponding quantity is referred to the gas phase REFERENCES [I] Danckwerts F. S., Gas Liquid Reactions. McGraw-Hill, New York [2] Assarita G., Moss Transfer with Chemical Reaction.

Elsevier, New York Ramm V. H., Absorption of Gases. Absorption of component A from a gas mixture in the drops is taken into account. Drops of liquid distributed in volume of the apparatus in regular intervals, move in the same direction, as gas flow.

A gas is a state of matter with no defined shape or volume. Gases have their own unique behavior depending on a variety of variables, such as temperature, pressure, and volume. While each gas is different, all gases act in a similar matter.

This study guide highlights the concepts and laws dealing with the chemistry of gases. PARTIAL PRESSURE. The partial pressure PX of a gas X in a mixture of gases of total pressure P is defined as the pressure that would be exerted by the molecules of X if all the other gases were removed from the mixture.

Dalton's law states that PX is related to P by the mixing ratio CX: () For our applications, P is the total atmospheric pressure.

Similarly to, we use the ideal gas. Some books provide pictures for comparison (not here). A strong C=O peak will cover up most of this region. CC R H H R CC R R H H CC R R R H CC R R R R (sometimes) ranging from to 10, ppmv.

Gas absorbers are most widely used to remove water soluble inorganic contaminants from air streams.[l, 2] Absorption is a process where one or more soluble components of a gas mixture are dissolved in a liquid (i.e., a solvent). The absorption process can be categorized as physical or chemical.

Introduction. Published models1 of intraocular gas absorption assume that the rate of change of intraocular gas volume is proportional to the remaining gas volume V(t).The model can be written dV/dt = −V / resulting exponential decay of gas volume is used to determine a value of the gas “half-life” τ from experimental observations of intraocular gas absorption.

where Q v = volumetric rate of f low of the gas passing through th e absorber, m 3 /s v = velocity of the gas related to the total cross sectional area of the column (ficti tious), m/s. absorber[əb′sȯrbər] (chemical engineering) Equipment in which a gas is absorbed by contact with a liquid.

(electronics) A material or device that takes up and dissipates radiated energy; may be used to shield an object from the energy, prevent reflection of the energy, determine the nature of the radiation, or selectively transmit one or more. In chemistry, absorption is a physical or chemical phenomenon or a process in which atoms, molecules or ions enter some bulk phase – liquid or solid material.

This is a different process from adsorption, since molecules undergoing absorption are taken up by the volume, not by the surface (as in the case for adsorption).A more general term is sorption, which covers absorption, adsorption, and.

Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g.

carbon dioxide).A gas mixture, such as air, contains a variety of pure gases. Gas is a state of matter that has no fixed shape and no fixed volume.

Gases have lower density than other states of matter, such as solids and is a great deal of empty space between. where v m is the natural vibrational frequency and A is the maximum amplitude of the motion. On differentiating a second time the equation becomes \(\dfrac{d^2 y}{d t^2} = - 4 \pi^2 \nu_m^2 A \cos 2 \pi \nu_m t \label{11}\) Pure rotational absorption of gases is observed in the far IR region when there is a permanent dipole moment present.

Main atmospheric gases absorbing/emitting in the IR: CO2, H2O, O3, CH4, N2O, CFCs. 9 Each atmospheric gas has a specific absorption/emission spectrum – its own spectral signature.

9 Position of absorption line centers differs for isotopes of the same molecule. Table Main vibrational transition of water vapor isotopes. Gas v1, cm-1 v 2, cm. List. This list is sorted by boiling point of gases in ascending order, but can be sorted on different values.

"sub" and "triple" refer to the sublimation point and the triple point, which are given in the case of a substance that sublimes at 1 atm; "dec" refers to decomposition.

INVESTIGATION OF THE ABSORPTION OF INFRARED RADIATION BY ATMOSPHERIC GASES Darrell E. Burch David A. Gryvnak John D. Pembrook Philco-Ford Corporation Aeronutronic Division Ford Road Newport Beach, California Contract No. FC Project No. Semi-Annual Technical Report No I June The gas adsorption technique may used to measure the specific surface area and pore size distribution of powdered or solid materials.

The dry sample is usually evacuated of all gas and cooled to a temperature of 77K, the temperature of liquid nitrogen. At this temperature inert gases such as nitrogen, argon and krypton will physically adsorb on.

emissions by gas absorption. In this experiment in particular, the absorptive capabilities of two kinds of packings, dumped and structured, were compared. The ideal operating conditions for the tower were determined in the first week, when the column was run with only water and air.

In the second week, the absorption of CO 2 by water was then. In this paper, a study is made on the calculation of appropriate mean absorption coefficients for the infrared radiation of gases. The Planck and Rosseland mean absorption coefficients for the optically thin and optically thick gases are expressed as functions of the spectroscopic and thermodynamic properties of the gas.

The history of the scientific discovery of climate change began in the early 19th century when ice ages and other natural changes in paleoclimate were first suspected and the natural greenhouse effect was first identified. In the late 19th century, scientists first argued that human emissions of greenhouse gases could change the other theories of climate change were advanced.

35% of 94 W/m 2, or 33 W/m 2, is IR radiation in the atmospheric window which cannot be absorbed and is lost to space. W/m 2 of initial IR radiation from the surface has been converted into convection transport or thermals due to molecular collisions thanks to the so-called greenhouse gases.

Absorption Coefficient for X P P/Po 1 26 Absorption Coefficient for XP/P = 6 27 0 vii. I fI. TABLES Number Page 1. Fraction of N Molecules in Excited States at K and OK 2 13 2. Effective Molecular Electronic Oscillator Strengths Selected 14 3. Franck-Condon Factors qv'v. Green House Gases The Earth absorbs solar energy and most of this energy is later released as heat, or IR radiation.

The most abundant gas molecules in the atmosphere, N 2 and O 2, are not able to absorb this energy and it passes through and out into space. Carbon dioxide, methane, nitrous oxide, chlorofluorocarbons, and certain other gases absorb IR radiation from the Earth's surface and re.

Gas—liquid chromatography of fatty acid methyl esters Determination of n-3 and n-6 unsaturated fatty acids in vegetable oils and fats by capillary gas—liquid chromatography Capillary column gas •— liquid chromatography of fatty acid methyl esters Determination of butyric acid Determination of erucic acid.

This can be explained on the basis of a possibility of gases getting condensed in the tiny capillary pores of adsorbent at pressure below the saturation pressure (P S) of the gas.

Examples of Type IV Adsorption Isotherm are of adsorption of Benzene on Iron Oxide (Fe 2 O 3) at °C and adsorption of Benzene on silica gel at °C.

Pressure swing adsorption (PSA) and temperature swing adsorption are potential techniques for removing CO2 from high-pressure fuel gas streams.

Natural zeolites are suitable candidate sorbents for use in the PSA process. Studies of volumetric gas adsorption of CO2, N2, and O2 on three natural zeolites, with different major cations, were conducted at 25 °C up to a pressure of psi (2 × Gas dry humid Main gases N 2 - Nitrogen O 2 - Oxygen H 2O - Water vapour 0 15 Ar - Argon 9 9 CO 2 - Carbon dioxide Trace gases Ne - Neon 18 18 He - Helium 5 5 CH 4 - Methane Kr - Krypton H 2 - Hydrogen N 2O - Nitrous oxide CO - Carbon monoxide Xe.A nondispersive infrared sensor (or NDIR sensor) is a simple spectroscopic sensor often used as a gas is non-dispersive in the fact that no dispersive element (e.g a prism or diffraction grating as is often present in other spectrometers) is used to separate out (like a monochromator) the broadband light into a narrow spectrum suitable for gas sensing.

24452 views Sunday, November 8, 2020