Description: technologyComment of argon production, liquid (RER): The technology represented in this dataset is the catalytic burning of oxygen impurities in argon with hydrogen. Pure commercial argon (99.999% Ar) is purified from crude argon (96-98% Ar, 2-4% O2, <1% N2) in further rectification columns and catalytic removal of the remaining oxygen impurities with hydrogen. The crude argon is heated in a heat exchanger and compressed to 4-6 bar. Then the deoxygenating of the stream with hydrogen takes place and the stream is cooled from 950 °C to 15 °C. After further cooling in the heat exchanger, pure argon is separated from excess hydrogen in a distillation column. It is also possible to pass the crude argon through further rectifying columns and achieve an impurity of only 10 ppm without the use of hydrogen. In this case the consumption of hydrogen would be negligible, but the electricity demand would probably be significant. This alternative purification process is not considered in this inventory. The figure below gives a simplified scheme of the purifying process for crude argon. imageUrlTagReplaceaf0c1def-542e-4d3a-bc65-af5ab48e0815 Reference: Personal communication, Richard Troxler, Pangas AG Switzerland, 16.01.2002.
Types:
Text {
text_type: Report,
}
Comment: This is a market activity. Each market represents the consumption mix of a product in a given geography, connecting suppliers with consumers of the same product in the same geographical area. Markets group the producers and also the imports of the product (if relevant) within the same geographical area. They also account for transport to the consumer and for the losses during that process, when relevant. This dataset represents the supply of 1 kg of argon, liquid from activities that produce it within the geography RER. In this market, expert judgement was used to develop product-specific transport distance estimations based on eurostat transport statistics for 2016 (http://ec.europa.eu/eurostat/data/database, extracted on the 2018-06-01). See exchange comments for additional details. This market is supplied by the following activities with the given share: argon production, liquid, RER: 1.0 generalComment of argon production, liquid (RER): This dataset represents the production of 1 kg of liquid argon. Argon is a colorless and odorless noncombustible gas. It is used in the welding, cutting, and spraying of metals. This dataset represents the production of argon by means of the cryogenic air distillation process, including further crude argon purification. Hydrogen is used to purify the liquefied crude argon. For further compressing, distilling and cooling, electricity is used. References: Althaus H.-J., Chudacoff M., Hischier R., Jungbluth N., Osses M. and Primas A. (2007) Life Cycle Inventories of Chemicals. Final report ecoinvent data v2.0 No. 8. Swiss Centre for Life Cycle Inventories, Dübendorf, CH. Häussinger, P., Glatthaar, R., Rhode, W., Kick, H., Benkmann, C., Weber, J., Wunschel, H.-J., Stenke, V., Leicht, E. and Stenger, H. 2001. Noble Gases. Ullmann's Encyclopedia of Industrial Chemistry. CAMEO Chemicals. Chemical Datasheet, Argon, https://cameochemicals.noaa.gov/chemical/9251 (last accessed on 2017-01-06).
Origin: /Bund/UBA/ProBas
Tags: Argon ? Weiterverwendung ? Sauerstoff ? Wasserstoff ? Schweiz ? Brand ? Verbrennung ? Wärmeübertrager ? Destillation ? Konsum ? Reinigungsverfahren ? Manufacture of basic chemicals ? Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics and synthetic rubber in primary forms ? Manufacture of chemicals and chemical products ? Manufacturing ?
License: unbekannt
Language: Deutsch
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