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Title: Synthesis Gas Demonstration Plant Program, Phase I. Trade-off study report II: gas purification alternatives

Abstract

Gas purification must be carried out in two stages for economic and technical reasons. The requirements of the first stage can be met by a Rectisol plant by Lotepro/Linde AG, or by a Selexol unit by Air Products/Allied Chemical. The second stage in either case should be a Nitrogen Wash unit. The Rectisol solvent (methanol) is freely available worldwide. Selexol solvent is obtainable only from single sources in the USA and in Germany, but serious supply problems are not anticipated. Selexol solvent is relatively non-toxic, non-volatile and non-flammable. Although methanol is classified as toxic and flammable, these potential hazards are controlled to acceptable levels of safety by application of standard methods for plant design and operational handling. The alternative gas purification systems have almost identical installed plant cost, but the operating cost of the Selexol system is substantially higher than that for the Rectisol version. This difference is large compared to any advantages of the Selexol process enumerated above. It is recommended that the Rectisol plant offered by Lotepro/Linde AG, plus a Nitrogen Wash unit, should be specified for the Commercial and Demonstration Plant. Before any such plant is ordered the process requirements (particularly concerning effluents) should be defined asmore » exactly as possible.« less

Publication Date:
Research Org.:
Grace (W.R.) and Co., Memphis, TN (USA)
OSTI Identifier:
5360846
Report Number(s):
DOE/ET/13402-T25
DOE Contract Number:  
AC02-77ET13402
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; RECTISOL PROCESS; COMPARATIVE EVALUATIONS; SELEXOL PROCESS; SYNTHESIS GAS; PURIFICATION; TEXACO GASIFICATION PROCESS; COAL GASIFICATION; DEMONSTRATION PLANTS; FLUIDS; GASES; GASIFICATION; THERMOCHEMICAL PROCESSES; 010404* - Coal, Lignite, & Peat- Gasification; 010402 - Coal, Lignite, & Peat- Purification & Upgrading

Citation Formats

Not Available. Synthesis Gas Demonstration Plant Program, Phase I. Trade-off study report II: gas purification alternatives. United States: N. p., 1979. Web. doi:10.2172/5360846.
Not Available. Synthesis Gas Demonstration Plant Program, Phase I. Trade-off study report II: gas purification alternatives. United States. doi:10.2172/5360846.
Not Available. Thu . "Synthesis Gas Demonstration Plant Program, Phase I. Trade-off study report II: gas purification alternatives". United States. doi:10.2172/5360846. https://www.osti.gov/servlets/purl/5360846.
@article{osti_5360846,
title = {Synthesis Gas Demonstration Plant Program, Phase I. Trade-off study report II: gas purification alternatives},
author = {Not Available},
abstractNote = {Gas purification must be carried out in two stages for economic and technical reasons. The requirements of the first stage can be met by a Rectisol plant by Lotepro/Linde AG, or by a Selexol unit by Air Products/Allied Chemical. The second stage in either case should be a Nitrogen Wash unit. The Rectisol solvent (methanol) is freely available worldwide. Selexol solvent is obtainable only from single sources in the USA and in Germany, but serious supply problems are not anticipated. Selexol solvent is relatively non-toxic, non-volatile and non-flammable. Although methanol is classified as toxic and flammable, these potential hazards are controlled to acceptable levels of safety by application of standard methods for plant design and operational handling. The alternative gas purification systems have almost identical installed plant cost, but the operating cost of the Selexol system is substantially higher than that for the Rectisol version. This difference is large compared to any advantages of the Selexol process enumerated above. It is recommended that the Rectisol plant offered by Lotepro/Linde AG, plus a Nitrogen Wash unit, should be specified for the Commercial and Demonstration Plant. Before any such plant is ordered the process requirements (particularly concerning effluents) should be defined as exactly as possible.},
doi = {10.2172/5360846},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}