Calculation of mineral equilibria in the system FeO-Al2O3-SiO2-O2
In: International Geology Review, Band 14, Heft 7, S. 692-706
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In: International Geology Review, Band 14, Heft 7, S. 692-706
In: Proceedings of the Academy of Sciences of the Estonian SSR. Physics. Mathematics, Band 17, Heft 2, S. 238
In: HELIYON-D-22-15784
SSRN
In: Water and environment journal, Band 34, Heft 2, S. 223-231
ISSN: 1747-6593
AbstractThe use of an oxygen generator based on pressure swing adsorption technology (PSA) has been investigated as an alternative method for supplying oxygen for onsite ozone production. During the investigation period of 1040 h, the oxygen purity from the PSA process fluctuated within a range of 90.5–93 O2% (v/v). Using the working ratio of 2.8 mol of O2 to 1 m3 of raw water, the PSA process in series with a corona discharge ozone generator yielded an oxidation–reduction potential of ca. 200 mV and a concentration of 22.8 mg/L dissolved oxygen. The average efficiency of the raw water treatment was as follows: 47% chemical oxygen demand removal, 78% biological oxygen demand removal, 36% sulphide removal and 34% colour removal. The operating cost of the PSA O2 generation was reduced 3 times compared with the cost of high‐pressure oxygen cylinders.
In: European Intellectual Property Review, Band 31, Heft 2, S. 81-87
SSRN
In: Environmental science and pollution research: ESPR, Band 30, Heft 24, S. 65976-65989
ISSN: 1614-7499
In: JFUE-D-22-00832
SSRN
In: Materials and design, Band 116, S. 227-237
ISSN: 1873-4197
In: JCOU-D-22-00841
SSRN
In: Environmental science and pollution research: ESPR, Band 6, Heft 3, S. 151-158
ISSN: 1614-7499
In: Forschungsberichte des Landes Nordrhein-Westfalen 1256
I. Kurze historische Einleitung -- II. Einleitung zu dieser Arbeit -- III. Maximale O2-Übertragungsfähigkeit und Konstitution ausgewählter Sensibilisatoren (Xanthenfarbstoffe) -- IV. Zur Terminationsreaktion der photosensibilisierten O2-Übertragung -- Allgemeiner Teil -- Spezieller Teil.
In: Alcohol and alcoholism: the international journal of the Medical Council on Alcoholism (MCA) and the journal of the European Society for Biomedical Research on Alcoholism (ESBRA), Band 48, Heft suppl 1, S. i35-i36
ISSN: 1464-3502
In: Revue roumaine de chimie: Romanian journal of chemistry, Band 64, Heft 11, S. 981-983
10 páginas, 8 figuras. ; We study the dissociative dynamics of O2 molecules on the Ag(100) surface. Initially, the impinging molecules are either in the spin-triplet ground state or in the spin-singlet excited state. The molecule-surface interaction is obtained in each case by constructing the six-dimensional potential energy surface (PES) from the interpolation of the energies calculated with spin-polarized and non-spin-polarized density functional theories, respectively. Classical trajectory calculations performed in both PESs show that O2 molecules initially in the spin-triplet ground state only dissociate for incidence energies above 1.05 eV. This result is consistent with molecular beam experiments performed in this system. Interestingly, our results also suggest that for the spin-singlet O2 dissociation occurs even for incidence energies as low as 50 meV. We propose the use of spin-singlet excited O2 molecules to improve the otherwise low dissociative reactivity of O2 at clean Ag(100). ; We acknowledge partial support by the Spanish MEC (Grant No. FIS2007-66711-C02-02), the Basque Government (Grant No. CTP07-P02), and the Basque Departamento de Educación, Universidades e Investigación, the University of the Basque Country UPV/EHU (Grant No. IT-366-07). Computational resources were provided by the SGI/IZO-SGIker at the UPV/EHU (supported by the Spanish Ministry of Education and Science and the European Social Fund) and the DIPC computer center. ; Peer reviewed
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In: Proceedings of the Academy of Sciences of the Estonian SSR. Physics. Mathematics, Band 24, Heft 4, S. 406