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Efficient removal of mercury from acidic solutions of HgCl2 by sorbents prepared from vegetable oils by inverse vulcanization
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SYSNO ASEP 0558242 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Efficient removal of mercury from acidic solutions of HgCl2 by sorbents prepared from vegetable oils by inverse vulcanization Tvůrce(i) Svoboda, Karel (UCHP-M) RID, ORCID, SAI
Ružovič, Tomáš (UCHP-M) RID, ORCID, SAI
Pohořelý, Michael (UCHP-M) RID, ORCID, SAIZdroj.dok. Proceedings 48th International Conference of the Slovak Society of Chemical Engineering SSCHE 2022 and Membrane Conference PERMEA 2022. - Bratislava : Faculty of Chemical and Food Technology STU, 2022 / Mihaľ M. - ISBN 978-80-8208-070-7 Rozsah stran s. 1-13 Poč.str. 13 s. Forma vydání Nosič - C Akce International Conference of the Slovak Society of Chemical Engineering SSCHE 2022 and Membrane Conference PERMEA 2022 /48./ Datum konání 23.05.2022 - 26.05.2022 Místo konání Tatranské Matliare Země SK - Slovensko Typ akce EUR Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova inverse vulcanization ; mercury removal ; acidic solutions Obor OECD Energy and fuels CEP EF16_026/0008413 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UCHP-M - RVO:67985858 Anotace Mercury is a dangerous toxic element for the environment. Incineration of municipal solid waste (MSWI) belongs to important sources of Hg-emissions today. Conversion of mercury and mercury compounds from soluble and toxic forms into water insoluble/non-toxic form of HgS is needed in waste residues from flue gas cleaning. Gaseous HCl and a significant part of HgCl2 vapors present in flue gas from MSWI can be removed from flue gas by absorption into hot water. Efficiencies of Hg2+ removal from acidic water solutions by means of sorbents prepared by catalyzed reaction of sulfur with vegetable oils (inverse vulcanization) were studied. These kinds of sorbents were tested and
found to be exploitable for removal of mercury ions from water solutions, particularly from acidic solutions containing HCl at higher temperatures (50 – 75 oC), also in presence of salts of some other metallic elements (Fe, Zn, Ca). Mercury adsorbed on such sorbents changes relatively quickly into non-toxic form of HgS. Leaching of zinc from the catalyst (Zn-diethyl-dithiocarbamate) contained in the vulcanized sorbents is negligible at neutral pH conditions and small (about 10 %) at acidic conditions (pH = 1.5).
Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2023 Elektronická adresa http://hdl.handle.net/11104/0331964
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