itwara katalisiti na zeolite

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Iyi ngingo yibanda ku miterere y’ubushyuhe bw’ubuso bw’ibikatalisiti bya okiside n’ibishyigikirwa (γ-Al2O3, CeO2, ZrO2, SiO2, TiO2, HZSM5 zeolite) no kugereranya ubuso bwabyo hakoreshejwe gupima ubushyuhe bwa amoniya (ATPD). ATPD ni uburyo bwizewe kandi bworoshye aho ubuso, nyuma yo kuzura amoniya ku bushyuhe buke, buhinduka ubushyuhe, bigatuma molekile za probe zitakaza ubushyuhe ndetse n’ubushyuhe bukwirakwira.
Mu isesengura ry’ingano n’ubuziranenge ry’imiterere y’imisemburo yo gusohora, amakuru ashobora kuboneka ku ngufu zo gusohora/gushyiramo amoniya n’ingano ya amoniya yinjijwe ku buso (ammoniya ikwirakwira). Nk’umubumbe w’ibanze, amoniya ishobora gukoreshwa nk’isuzuma kugira ngo hamenyekane aside iri ku buso. Aya makuru ashobora gufasha gusobanukirwa imikorere y’ibipimo ndetse no gufasha kunoza ikorwa ry’imiti mishya. Aho gukoresha icyuma gisanzwe cyo gupima TCD, hakoreshejwe icyuma gipima ubunini bwa quadrupole (Hiden HPR-20 QIC) muri uwo murimo, gihujwe n’igikoresho cyo gupima binyuze mu muyoboro ushyushye.
Gukoresha QMS bidufasha gutandukanya byoroshye ubwoko butandukanye bwakuwe ku buso hatitawe ku mashini cyangwa ibyuma bikoresha imiti n'imitego bishobora kugira ingaruka mbi ku isesengura. Gushyiraho neza ubushobozi bwa ionization bw'igikoresho bifasha gukumira gucikamo ibice by'amazi no kubangamira ikimenyetso cya ammonia m/z. Ubuziranenge n'ubwizerwe bw'amakuru ajyanye no gusohora ammonia hakoreshejwe ubushyuhe byasesenguwe hakoreshejwe ibipimo ngenderwaho n'ibizamini by'igerageza, bigaragaza ingaruka z'uburyo bwo gukusanya amakuru, umwuka utwara, ingano y'uduce, n'imiterere y'imashini ikora, bigaragaza uburyo bworoshye bwo gukoresha.
Ibikoresho byose byizweho bifite uburyo bugoye bwa ATPD buri hagati ya 423-873K, usibye cerium, igaragaza imisozi mito yakuwemo umwuka igaragaza aside nkeya. Amakuru y’imibare agaragaza itandukaniro mu kwinjira kwa amoniya hagati y’ibindi bikoresho na silika ku rugero rurenze urugero. Kubera ko ikwirakwizwa rya cerium muri ATPD rikurikiza umurongo wa Gaussian hatitawe ku gutwikirwa kw’ubuso n’umuvuduko w’ubushyuhe, imyitwarire y’ibikoresho biri kwigwa isobanurwa nk’umurongo w’imikorere ine ya Gaussian ijyanye no guhuza amatsinda y’ahantu ari hagati, adakomeye, akomeye, kandi akomeye cyane. Amakuru yose amaze gukusanywa, isesengura rya ATPD ryakoreshejwe kugira ngo rifashe kubona amakuru ku ngufu zo kwinjiza za molekile ya probe nk’uko bigenderwaho kuri buri bushyuhe bwo kwinjiza umwuka. Ikwirakwizwa ry’ingufu rihuriweho hakurikijwe aho riherereye rigaragaza agaciro gakurikira k’aside gashingiye ku gaciro mpuzandengo k’ingufu (muri kJ/mol) (urugero: gutwikirwa kw’ubuso θ = 0.5).
Nk’uburyo bwo gusuzuma, propene yatewe amazi ya isopropanol kugira ngo haboneke amakuru y’inyongera ku mikorere y’ibikoresho byarimo gukorwaho ubushakashatsi. Ibisubizo byabonetse byari bihuye n’ibipimo bya ATPD byabanje ku bijyanye n’imbaraga n’ubwinshi bw’ahantu hafite aside yo hejuru, kandi byatumye bishoboka gutandukanya ahantu hafite aside ya Brønsted na Lewis.
Ishusho ya 1. (Ibumoso) Gukuraho imiterere ya ATPD hakoreshejwe imikorere ya Gaussian (umurongo w'umuhondo ugaragaza imiterere yakozwe, utudomo tw'umukara ni amakuru y'igerageza) (iburyo) imikorere yo gukwirakwiza ingufu za Ammonia ahantu hatandukanye.
Roberto Di Cio Ishami ryubwubatsi, kaminuza ya Messina, Contrada Dee Dee, Sant'Agata, I-98166 Messina, Ubutaliyani
Francesco Arena, Roberto Di Cio, Giuseppe Trunfio (2015) “Isuzuma ry’Uburyo bwo Gusesa Ammonia mu Igerageza ry’Ubushyuhe bwo Gupima Imiterere y’Aside mu Buso bw’Ingufu Zitandukanye” Ikoreshwa rya Catalysis A: Isuzuma 503, 227-236
Hisha isesengura. (9 Gashyantare 2022). Isuzuma ry'igerageza ry'uburyo bwo gukuraho amoniya hakoreshejwe gahunda y'ubushyuhe kugira ngo higwe imiterere ya aside y'ubuso butandukanye bwa catalysts. AZ. Byakuwe ku ya 7 Nzeri 2023 kuri https://www.azom.com/article.aspx?ArticleID=14016.
Hisha isesengura. "Isuzuma ry'igerageza ry'uburyo bwo gusohora amoniya hakoreshejwe gahunda y'ubushyuhe mu kwiga imiterere ya aside y'ubuso bw'ibinyabutabire bitandukanye". AZ. 7 Nzeri 2023 .
Hisha isesengura. “Isuzuma ry’igerageza ry’uburyo bwo gusohora amoniya hakoreshejwe ubushyuhe mu kwiga imiterere ya aside y’ubuso bw’ibinyabutabire bitandukanye”. AZ. https://www.azom.com/article.aspx?ArticleID=14016. (Byabonetse: 7 Nzeri 2023).
Hisha isesengura. 2022. Isuzuma ry'igerageza ry'uburyo bwo gukuraho amoniya hakoreshejwe gahunda y'ubushyuhe mu kwiga imiterere ya aside y'ubuso butandukanye bwa catalyst. AZoM, yabonetse ku ya 7 Nzeri 2023, https://www.azom.com/article.aspx?ArticleID=14016.