Studies on thermal desorption method of organic solvent. II Thermal desorption characteristics of organic solvent from activated carbon bed.

Desorption of Reactive Red 198 from activated carbon prepared from walnut shells: effects of temperature, sodium carbonate concentration and organic solvent dose

This study investigated the effect of temperature, different concentrations of sodium carbonate,and the dose of organic solvent on the desorption of Reactive Red 198 dye from dye-saturated activated carbon using batch and continuous systems. The results of the batch desorption test showed 60% acetone in water as the optimum amount. However, when the concentration of sodium carbonate was raised,...

[Estimation of thermal desorption efficiencies from activated carbon for determination of adsorbed organic solvents].

A method for estimating thermal desorption curves and desorption efficiencies of organic solvents from activated carbon was developed for the determination of adsorbed solvent by thermal desorption method, and the estimated values were compared with the experimental values. The Freundlich or the Langmuir isotherm was assumed in obtaining the solution. Thermal desorption experiments were conduct...

A new desorption method for removing organic solvents from activated carbon using surfactant

OBJECTIVES A new desorption method was investigated, which does not require toxic organic solvents. Efficient desorption of organic solvents from activated carbon was achieved with an ananionic surfactant solution, focusing on its washing and emulsion action. METHODS Isopropyl alcohol (IPA) and methyl ethyl ketone (MEK) were used as test solvents. Lauryl benzene sulfonic acid sodium salt (LAS...

Use of a Thermal Desorption Particle Beam Mass Spectrometer for Studies of Secondary Organic Aerosol Formation

As part of a research program focusing on studies of the chemistry of gas-to-particle conversion, we have recently developed a new instrument for particle chemical analysis. This instrument, which we refer to as a thermal desorption particle beam mass spectrometer (TDPBMS), can be used for real-time, quantitative analysis of the components of organic particles, at least within the ~0.02-0.5 mic...

Thermal Desorption Studies of the Hydrogenation of Coronene on HOPG