DE625418C - Desiccant for gases - Google Patents

Desiccant for gases

Info

Publication number
DE625418C
DE625418C DEG86535D DEG0086535D DE625418C DE 625418 C DE625418 C DE 625418C DE G86535 D DEG86535 D DE G86535D DE G0086535 D DEG0086535 D DE G0086535D DE 625418 C DE625418 C DE 625418C
Authority
DE
Germany
Prior art keywords
gases
air
solution
desiccant
dew point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEG86535D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gesellschaft fuer Kohlentechnik mbH
Original Assignee
Gesellschaft fuer Kohlentechnik mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gesellschaft fuer Kohlentechnik mbH filed Critical Gesellschaft fuer Kohlentechnik mbH
Priority to DEG86535D priority Critical patent/DE625418C/en
Application granted granted Critical
Publication of DE625418C publication Critical patent/DE625418C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Drying Of Gases (AREA)

Description

Trockenmittel für Gase Es ist bereits vorgeschlagen worden, zum Trocknen von Gasen, insbesondere von Gasen bituminöser Brennstoffe, Lösungen von Rhodansalzen zu verwenden.Desiccant for gases It has already been proposed for drying of gases, in particular of gases from bituminous fuels, solutions of rhodan salts to use.

Die vorliegende Erfindung betrifft eine Verbesserung dieses Verfahrens, nach dem sich überraschenderweise gezeigt hat, daß durch Anwendung eines Gemisches von Calciumrhodanid und Calciumnitrat unter sonst gleichen Arbeitsbedingungen der Gleichgewichtstaupunkt des betreffenden Gases erheblich weiter herabgesetzt wird als bei Anwendung eines Rhodansalzes allein. The present invention relates to an improvement of this method, after which, surprisingly, it has been shown that by using a mixture of calcium rhodanide and calcium nitrate under otherwise identical working conditions of the Equilibrium dew point of the gas in question is considerably further reduced than when using a rhodan salt alone.

Der Vorteil des neuen Verfahrens sei an Hand nachstehenden Vergleichsversuches erläutert: Ein Luftstrom strich nach Passieren eines Strömungsmessers durch zwei mit je 60 ccm Wasser gefüllte und hierauf durch zwei mit je 6o ccm einer Calciumrhodanid oder Calciumrhodanid-Calciumnitrat-Lösung gefüllte Schraubenwaschflaschen. Sämtliche Flaschen befanden sich zwecks Einhaltung konstanter Temperatur in einem Thermostaten. Anschließend wurde die Luft durch zwei mit Phosphorpentoxyd gefüllte- U-Rohre und dann durch einen Gasmesser geleitet. Strömungsgeschwindigkeit 3 bis 41 je Stunde, Gesamtluftmenge 20 bis 301. Bei dieser Strömungsgeschwindigkeit sättigt sich die Luft in den ersten beiden Flaschen mit Wasserdampf; in den nächsten beiden Flaschen wird der Wasserdampfgehalt auf den über der Ca (C N S)2-Lösung herrschenden Dampfdruck herabgesetzt. Durch Wägen der Phosphorpentoxydrohre vor und nach dem Versuch sowie Ablesen des Luftvolumens am Gasmesser ließ sich der Wassergehalt der Luft über der Trockenlösung bei der betreffenden Temperatur (25°) genau ermitteln, wie ja dieses Verfahren, bekannt als dynamische Methode, zur Dampfdruckbestimmung weitgehend benutzt wird. The advantage of the new process can be seen in the following comparative experiment explained: An air stream streaked through two after passing a flow meter each filled with 60 ccm of water and then by two with 60 ccm each of a calcium rhodanide screw washing bottles filled with calcium rhodanide-calcium nitrate solution. All Bottles were in a thermostat to maintain a constant temperature. The air was then passed through two U-tubes filled with phosphorus pentoxide and then passed through a gas meter. Flow rate 3 to 41 per hour, Total air volume 20 to 301. At this flow rate, the Air in the first two bottles with water vapor; in the next two bottles the water vapor content is adjusted to the vapor pressure prevailing above the Ca (C N S) 2 solution degraded. By weighing the phosphorus pentoxide tubes before and after the experiment as well Reading the volume of air on the gas meter showed the water content of the air above the Determine exactly the dry solution at the relevant temperature (25 °), like this one Method known as the dynamic method, widely used to determine vapor pressure will.

Tabelle I Gehalt der Lösung H2O-Dampfgehalr Gleichgewicht Temperatur an Ca(CNS)2 der durchgeleiteten taupunkt Luft in mg H2O/l °C % °C 25 59'4 4'77 - 0'2 25 54'9 6, 84 + 5, 8 25 5I, 5 8, 33 + 8, 7 H2O-Dampf- Gehalt der Lösung an Tempe- gehalt der Gleichgewich ratur durchgeleiteten taupunkt Luft in Ca(CNS)2 Ca(NO3)2 mg H2O/l °C % % °C 25 52,8 10,1 2,96 -5,0 25 42,6 21,3 2,64 -6,5 Für die Praxis ist es besonders interessant, wieweit sich die Kühlung des getrockneten Gases ohne Wasserabscheidung treiben läßt.Table I. Content of the solution H2O vapor content equilibrium temperature of Ca (CNS) 2 of the passed through dew point Air in mg H2O / l ° C% ° C 25 59'4 4'77 - 0'2 25 54'9 6, 84 + 5, 8 25 5I, 5 8, 33 + 8, 7 H2O steam Content of the solution Temperature equilibrium temperature passed through dew point Air in Ca (CNS) 2 Ca (NO3) 2 mg H2O / l ° C%% ° C 25 52.8 10.1 2.96 -5.0 25 42.6 21.3 2.64 -6.5 In practice it is of particular interest to what extent the cooling of the dried gas can be carried out without separating water.

Daher ist in der 4. Spalte der Tabellen der jeweilige Gleichgewichtstaupunkt angegeben, d. i. der Taupunkt eines Gases, das mit der betreffenden Lösung bei der betreffenden ?'emperatur lange und innig genug in Berührung war, um den Wasserdampfdruck der Lösung anzunehmen.Therefore, the respective equilibrium dew point is in the 4th column of the tables specified, d. i. the dew point of a gas that is mixed with the solution in question in the concerned? 'emperatur was in touch long and intimately enough to control the water vapor pressure accept the solution.

Claims (1)

P A T E N T A N S P R U C H : Die Verwendung stark konzentrierter Calciumrhodanid-Calciumnitrat-Lösungen als Trockenmittel für Gase. P A T E N T A N S P R U C H: The use of highly concentrated Calcium rhodanide-calcium nitrate solutions as desiccants for gases.
DEG86535D 1933-10-03 1933-10-03 Desiccant for gases Expired DE625418C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG86535D DE625418C (en) 1933-10-03 1933-10-03 Desiccant for gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG86535D DE625418C (en) 1933-10-03 1933-10-03 Desiccant for gases

Publications (1)

Publication Number Publication Date
DE625418C true DE625418C (en) 1936-02-08

Family

ID=7138428

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG86535D Expired DE625418C (en) 1933-10-03 1933-10-03 Desiccant for gases

Country Status (1)

Country Link
DE (1) DE625418C (en)

Similar Documents

Publication Publication Date Title
DE625418C (en) Desiccant for gases
DE373284C (en) Process for stripping ammonia from its aqueous solutions by means of air
DE1014136B (en) Method and device for the production of a mixture of hydrogen and nitrogen, the hydrogen of which is obtained by decomposing coke oven gas using cooling under pressure
DE624842C (en) Drying of gases
DE628811C (en) Process for the desulphurization of gases
DE551072C (en) Conversion of nitrites in aqueous solution into nitrates
DE702361C (en) Process for the production of sulfur dioxide from gases containing it
DE752640C (en) Process for the production of concentrated solutions of ammonium nitrate from dilute nitric acid and ammonia
DE574721C (en) Production of active silica with narrow pores
DE746350C (en) Process for the preparation of aqueous ammoniacal solutions
DE327004C (en) Process for the production of rash-free cement fiber panels
DE633390C (en) Process for the production of liquefied sulfur dioxide
DE929516C (en) Detector tubes for the detection and measurement of water vapor in air or other gases
DE602561C (en) Procedure for determining the gas content of condensed water
AT136784B (en) Process for manufacturing electrolytic capacitors.
DE853587C (en) Process for the production of phosgene
DE976733C (en) Process for the treatment of gas water and similar solutions
DE613615C (en) Process for the sulfur purification of coal distillation gases
DE882698C (en) Process for removing carbonic acid from gases using lime
DE652040C (en) Process for the production of sulfur dioxide
DE629595C (en) Process for the preparation of anhydrous ethyl alcohol
DE406356C (en) Process for drying air, gases or vapors
DE355602C (en) Process for evaporation of liquids
DE529603C (en) Apparatus for the direct extraction of dry ammonium salts
DE578186C (en) Process for binding gases