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Title: Solubility of hydrogen sulfide in n-methylpyrrolidone

Abstract

The solubility of hydrogen sulfide in N-methylpyrrolidone was investigated over wide ranges of temperature and pressure. The dynamic variant of the gravimetric method was used at hydrogen sulfide pressures equal to or below atmospheric, and the static variant at higher pressures. In the dynamic variant of the gravimetric method hydrogen sulfide is passed through a known amount of solvent until saturation is reached, and the amount of gas dissolved is found from the weight increase. This method is particularly convenient in studies of highly soluble gases when the solvent has a low vapor pressure. If the vapor pressure of the solvent exceeded this value a correction for entrainment of solvent vapor by undissolved gas was applied. The study showed that the solubility of hydrogen sulfide in N-methylpyrrolidone rose steeply with increase of pressure and decrease of temperature and that it can be used as an effective absorbent of hydrogen sulfide in highly sulfurous natural gas. Since the solubility of hydrogen sulfide under atmospheric pressure is fairly high even at elevated temperatures, effective regeneration of N-methylpyrrolidone is possible by a combination of heating and blowing with an inert gas or by application of vacuum for removal of the hydrogen sulfide.

Authors:
; ;
Publication Date:
OSTI Identifier:
6157440
Resource Type:
Journal Article
Journal Name:
J. Appl. Chem. USSR (Engl. Transl.); (United States)
Additional Journal Information:
Journal Volume: 53:1; Other Information: Translated from Zh. Prikl. Khim.; 53: No. 11, 2456-2461(Nov. 1980)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 03 NATURAL GAS; HYDROGEN SULFIDES; SOLUBILITY; PYRROLIDONES; SOLVENT PROPERTIES; EXPERIMENTAL DATA; NATURAL GAS; PRESSURE DEPENDENCE; PURIFICATION; TEMPERATURE DEPENDENCE; AMIDES; AZOLES; CHALCOGENIDES; DATA; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; INFORMATION; LACTAMS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PYRROLES; SULFIDES; SULFUR COMPOUNDS; 400201* - Chemical & Physicochemical Properties; 030300 - Natural Gas- Drilling, Production, & Processing

Citation Formats

Yarym-Agaev, N L, Matvienko, V G, and Povalyaeva, N V. Solubility of hydrogen sulfide in n-methylpyrrolidone. United States: N. p., 1980. Web.
Yarym-Agaev, N L, Matvienko, V G, & Povalyaeva, N V. Solubility of hydrogen sulfide in n-methylpyrrolidone. United States.
Yarym-Agaev, N L, Matvienko, V G, and Povalyaeva, N V. Tue . "Solubility of hydrogen sulfide in n-methylpyrrolidone". United States.
@article{osti_6157440,
title = {Solubility of hydrogen sulfide in n-methylpyrrolidone},
author = {Yarym-Agaev, N L and Matvienko, V G and Povalyaeva, N V},
abstractNote = {The solubility of hydrogen sulfide in N-methylpyrrolidone was investigated over wide ranges of temperature and pressure. The dynamic variant of the gravimetric method was used at hydrogen sulfide pressures equal to or below atmospheric, and the static variant at higher pressures. In the dynamic variant of the gravimetric method hydrogen sulfide is passed through a known amount of solvent until saturation is reached, and the amount of gas dissolved is found from the weight increase. This method is particularly convenient in studies of highly soluble gases when the solvent has a low vapor pressure. If the vapor pressure of the solvent exceeded this value a correction for entrainment of solvent vapor by undissolved gas was applied. The study showed that the solubility of hydrogen sulfide in N-methylpyrrolidone rose steeply with increase of pressure and decrease of temperature and that it can be used as an effective absorbent of hydrogen sulfide in highly sulfurous natural gas. Since the solubility of hydrogen sulfide under atmospheric pressure is fairly high even at elevated temperatures, effective regeneration of N-methylpyrrolidone is possible by a combination of heating and blowing with an inert gas or by application of vacuum for removal of the hydrogen sulfide.},
doi = {},
url = {https://www.osti.gov/biblio/6157440}, journal = {J. Appl. Chem. USSR (Engl. Transl.); (United States)},
number = ,
volume = 53:1,
place = {United States},
year = {1980},
month = {1}
}