U.S. Department of EnergyOffice of Scientific and Technical Information
Collection of VLE data for acid gas-alkanolamine systems using Fourier transform infrared spectroscopy
Abstract
The industrial standard process for the purification of natural gas is to remove acid gases, mainly hydrogen sulfide and carbon dioxide, by the absorption and reaction of these gases with alkanolamines. Inadequate data for vapor -- liquid equilibrium (VLE) hinder the industry from converting operations to more energy efficient amine mixtures and conserving energy. Some energy reductions have been realized in the past decade by applying such amine systems as hindered'' amines, methyldiethanolamine (MDEA), and MDEA based amine mixtures. However, the lack of reliable and accurate fundamental VLE data impedes the commercial application of these more efficient alkanolamine systems. The first project objective is to improve the accuracy of vapor -- liquid equilibrium measurements at low hydrogen sulfide concentrations. The second project objective is to measure the VLE for amine mixtures. By improving the accuracy of the VLE measurements on MDEA and mixtures with other amines, energy saving can be quickly and confidently implemented in the many existing absorption units already in use. If about 25% of the existing 95.3 billion SCFD gas purification capacity is converted to these new amine systems, the energy savings are estimated to be about 3 {times} 10{sup 14} BTU/yr.
- Authors:
- Publication Date:
- Research Org.:
- Texas A and M Univ., College Station, TX (United States). Texas Engineering Experiment Station
- Sponsoring Org.:
- USDOE; USDOE, Washington, DC (United States)
- OSTI Identifier:
- 6037688
- Report Number(s):
- DOE/CE/40938-1
ON: DE92004027
- DOE Contract Number:
- FC02-90CE40938
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 03 NATURAL GAS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AMINES; CHEMICAL PROPERTIES; NATURAL GAS; PURIFICATION; EQUILIBRIUM; LIQUIDS; PHASE TRANSFORMATIONS; PROGRESS REPORT; VAPORS; DOCUMENT TYPES; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; ORGANIC COMPOUNDS; 030300* - Natural Gas- Drilling, Production, & Processing; 400201 - Chemical & Physicochemical Properties
Citation Formats
Bullin, J A, and Frazier, R E. Collection of VLE data for acid gas-alkanolamine systems using Fourier transform infrared spectroscopy. United States: N. p., 1991.
Web. doi:10.2172/6037688.
Bullin, J A, & Frazier, R E. Collection of VLE data for acid gas-alkanolamine systems using Fourier transform infrared spectroscopy. United States. https://doi.org/10.2172/6037688
Bullin, J A, and Frazier, R E. 1991.
"Collection of VLE data for acid gas-alkanolamine systems using Fourier transform infrared spectroscopy". United States. https://doi.org/10.2172/6037688. https://www.osti.gov/servlets/purl/6037688.
@article{osti_6037688,
title = {Collection of VLE data for acid gas-alkanolamine systems using Fourier transform infrared spectroscopy},
author = {Bullin, J A and Frazier, R E},
abstractNote = {The industrial standard process for the purification of natural gas is to remove acid gases, mainly hydrogen sulfide and carbon dioxide, by the absorption and reaction of these gases with alkanolamines. Inadequate data for vapor -- liquid equilibrium (VLE) hinder the industry from converting operations to more energy efficient amine mixtures and conserving energy. Some energy reductions have been realized in the past decade by applying such amine systems as hindered'' amines, methyldiethanolamine (MDEA), and MDEA based amine mixtures. However, the lack of reliable and accurate fundamental VLE data impedes the commercial application of these more efficient alkanolamine systems. The first project objective is to improve the accuracy of vapor -- liquid equilibrium measurements at low hydrogen sulfide concentrations. The second project objective is to measure the VLE for amine mixtures. By improving the accuracy of the VLE measurements on MDEA and mixtures with other amines, energy saving can be quickly and confidently implemented in the many existing absorption units already in use. If about 25% of the existing 95.3 billion SCFD gas purification capacity is converted to these new amine systems, the energy savings are estimated to be about 3 {times} 10{sup 14} BTU/yr.},
doi = {10.2172/6037688},
url = {https://www.osti.gov/biblio/6037688},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Sep 01 00:00:00 EDT 1991},
month = {Sun Sep 01 00:00:00 EDT 1991}
}