Cyclodextrins: a potential absorbent for VOC abatement View Crossref metadata(active tab) <div id="edit-xml" class="form-item form-type-item"> <?xml version="1.0"?> <doi_batch version="4.4.1" xmlns="http://www.crossref.org/schema/4.4.1" xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.crossref.org/schema/4.4.1 http://www.crossref.org/schemas/crossref4.4.1.xsd"><head><doi_batch_id>000701</doi_batch_id><timestamp>1715404474</timestamp><depositor><depositor_name>University of the Aegean</depositor_name><email_address>uoa@university.com</email_address></depositor><registrant>Global NEST Journal</registrant></head><body><journal><journal_metadata><full_title>Global NEST Journal</full_title><full_title>Global NEST: the international Journal</full_title><issn media_type="print">1790-7632</issn><issn media_type="electronic">2241-777X</issn></journal_metadata><journal_issue><titles><title>Issue 3</title></titles><publication_date><month>11</month><year>2024</year></publication_date><journal_volume><volume>8</volume></journal_volume><issue>3</issue></journal_issue><journal_article><titles><title>Cyclodextrins: a potential absorbent for VOC abatement </title></titles><abstract xmlns="http://www.ncbi.nlm.nih.gov/JATS1"><p>The capacity of cyclodextrins in trapping VOCs is studied. Cyclodextrins (CDs) are a family of cyclic oligosaccharides that are composed of α-1,4-linked glucopyranose subunits. The most notable feature of cyclodextrins is their ability to form inclusion complexes (host–guest complexes) in solution with a very wide range of solid, liquid and gaseous compounds by a phenomenon of molecular complexation. Inclusion in cyclodextrins exerts a profound effect on the physicochemical properties of guest molecules as they are temporarily locked within the host cavity giving rise to beneficial modifications of guest molecules. Cyclodextrins are non toxic compounds. Volatile Organic Compounds (VOCs) are among the most common air pollutants emitted from chemical, petrochemical, and allied industries. VOCs are one of the main sources of photochemical reaction in the atmosphere leading to various environmental hazards; on the other hand, these VOCs have good commercial value. There are many techniques available to control VOCs emission (destruction based and recovery based) with many advantages and limitations. Absorption is one of the recovery techniques with a removal efficiency of 95 to 98% but its applications are limited to hydrosoluble VOCs. The measurements of vapour liquid equilibrium (VLE) data in absence or in the presence of cyclodextrins were done. These data are needed to perform the design of an absorber for process application. The determination of Henry’s law constant (Hc) was achieved with a static headspace coupled with a gas chromatography (HS-GC). Moreover this technique permits us to calculate the association constant in the aqueous medium between the volatile solute and different cyclodextrins. The use of cyclodextrins may lead to a reduction of 95% of the Henry’s law constant for some VOCs. Dynamical studies were done by using impinger filled with an aqueous solution of cyclodextrin. By contacting a contaminated air with this solution, we observed the transfer of the VOCs from the gaseous phase to the liquid phase. These results show that by using cyclodextrins as liquid solvent, absorption can be used for the removal of a large variety of VOCs from gaseous effluents. The test in an absorber tower are also performed.</p></abstract><publication_date><month>04</month><day>29</day><year>2013</year></publication_date><pages><first_page>324</first_page><last_page>329</last_page></pages><publisher_item><identifier id_type="pii">415</identifier></publisher_item><doi_data><doi>10.30955/gnj.000415</doi><timestamp>1715404474</timestamp><resource>https://journal.gnest.org/publication/415</resource></doi_data></journal_article></journal></body></doi_batch> </div>
