Revista Boliviana de Quimica最新文献

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VALIDACIÓN PARCIAL DE UN MÉTODO DE DETECCIÓN DE PESTICIDAS ORGANOCLORADOS EN VINAZA, POR CROMATOGRAFÍA DE GASES 气相色谱法对醋中有机氯农药检测方法的部分验证

Revista Boliviana de Quimica Pub Date : 2019-12-30 DOI: 10.34098/2078-3949.36.5.3

A. P. Chaile, M. D. R. Holgado

引用次数: 0

SÍNTESIS DE ZEOLITA ZSM-5 UTILIZANDO DIATOMITA COMO PRECURSOR; SU APLICACIÓN EN EL PROCESO DE METANOL A HIDROCARBUROS (MTH) 以硅藻土为前驱体合成ZSM-5沸石;它在甲醇制碳氢化合物(MTH)过程中的应用

Revista Boliviana de Quimica Pub Date : 2019-12-30 DOI: 10.34098/2078-3949.36.5.2

Ronald M. Lara Prado, Dayana M. Capcha Vargas, Yamil Acho Sarzuri, Edgar Cárdenas, G. García, M. Cabrera, N. López

{"title":"SÍNTESIS DE ZEOLITA ZSM-5 UTILIZANDO DIATOMITA COMO PRECURSOR; SU APLICACIÓN EN EL PROCESO DE METANOL A HIDROCARBUROS (MTH)","authors":"Ronald M. Lara Prado, Dayana M. Capcha Vargas, Yamil Acho Sarzuri, Edgar Cárdenas, G. García, M. Cabrera, N. López","doi":"10.34098/2078-3949.36.5.2","DOIUrl":"https://doi.org/10.34098/2078-3949.36.5.2","url":null,"abstract":"Zeolite H-ZSM-5 is widely applied in the petrochemical industry, such as the synthetic process of methanol to hydrocarbons (methanol to hydrocarbons MTH). ZSM-5 zeolite is currently obtained through reagents and expensive processes, being available only a few cheaper alternative routes. In the present investigation, zeolite HZSM-5 was obtained from natural diatomite, then characterized, and finally tested in the synthetic MTH process. The natural diatomite was treated with sulfuric acid to perform hydrothermal synthesis with tetrapropyl ammonium hydroxide (TPA-OH). As a result, the H-ZSM-5 zeolite obtained had a Si / Al molar ratio of 23, it exhibited high thermal stability and showed Lowry-Brönsted and Lewis acid sites. The application of this zeolite in the MTH reaction showed a methanol conversion of 88%. The products were: dimethyl ether (DME) in 40%, olefins (mostly ethylene and propylene) in 40% and others in 20%. The reaction conditions were: 300 ° C, 1.2Lmetanol/gcath at atmospheric pressure (0.65 bar). The selectivity of the products can be modified in such a way that DME can be Received 10 15 2019 Accepted 12 25 2019 Published 12 3","PeriodicalId":21227,"journal":{"name":"Revista Boliviana de Quimica","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90543954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

DETERMINACIÓN DEL CONTENIDO DE FÓSFORO Y ARSÉNICO, Y DE OTROS METALES CONTAMINANTES DE LAS AGUAS SUPERFICIALES DEL RÍO COATA, AFLUENTE DEL LAGO TITICACA, PERÚ 秘鲁喀喀湖支流科塔河地表水中磷、砷和其他污染金属含量的测定

Revista Boliviana de Quimica Pub Date : 2019-12-30 DOI: 10.34098/2078-3949.36.5.4

Germán Belizario Quispe, Javier Capacoila Coila, Edilberto Huaquisto Ramos, Dalmiro A. Cornejo Olarte, H. C. Betancur

引用次数: 2

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