Détail de la notice
Titre du Document
A life-cycle inventory for the production of sulphur and caustic soda in Europe
Auteur(s)
POSTLETHWAITE D. ; SCHUL W. ; STALMANS M.
Résumé
Most European sulphur is derived from impurities in natural gas and crude petroleum. It is mainly produced by the Claus Process which essentially involves the extraction and concentration of hydrogen sulphide, which is subsequently oxidized to sulphur by sulphur dioxide. Resource requirements, energies and emissions are thus basically all fuel-related. Sulphur production by this route serves two useful purposes in that not only does it minimize undesirable impurities in petroleum and natural gas but also generates a useful by-product. Caustic soda (sodium hydroxide) considered in this study is mainly used for the neutralization of anionic surfactants after sulphation and sulphonation. It is produced from salt (sodium chloride) typically mined by solution techniques and subsequent electrolysis. Energy requirements, atmospheric emissions and solid waste generated in the production of caustic soda are mainly resulting from the electrolysis of the sodium chloride. The electrolysis requires a high amount of electricity. Because of the different use of resources for electricity generation (coal, gas, crude oil, nuclear energy) in different countries, the atmospheric emissions and solid waste differ between caustic soda used in the different surfactant systems, which are produced in different countries.
Editeur
Hanser
Identifiant
ISSN : 0932-3414 CODEN : TSDEES
Source
Tenside, surfactants, detergents A. 1995, vol. 32, n° 5, pp. 412-418 [6 pages] [bibl. : 7 ref.]
Langue
Anglais
Pour les membres de la communauté du CNRS, ce document est autorisé à la reproduction à titre gratuit.
Pour les membres des communautés hors CNRS, la reproduction de ce document à titre onéreux sera fournie sous réserve d’autorisation du Centre Français d’exploitation du droit de Copie.

Pour bénéficier de nos services (strictement destinés aux membres de la communauté CNRS (Centre National de la Recherche Scientifique), de l'ESR français (Enseignement Supérieur et Recherche), et du secteur public français & étranger) :