Azerbaijan Journal of Chemical News最新文献_第5页

INVESTİGATİON OF THE REACTİON OF OBTAİNİNG HYDROGEN FROMETHANOL OVER BİNARY NİCKEL-SERIUM OXİDE CATALYSTS

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-20

D. Akhmedova, V. Baghiyev

{"title":"INVESTİGATİON OF THE REACTİON OF OBTAİNİNG HYDROGEN FROM\u0000ETHANOL OVER BİNARY NİCKEL-SERIUM OXİDE CATALYSTS","authors":"D. Akhmedova, V. Baghiyev","doi":"10.32010/ajcn03032021-20","DOIUrl":"https://doi.org/10.32010/ajcn03032021-20","url":null,"abstract":"In the presented work, we had investigated the reaction of steam conversion of ethanol to hydrogen over binary nickel-cerium oxide catalysts of various alignments. It is also resoluted that hydrogen yield at a maximum temperature of 600 ° C reaches 76.5%, and the reaction products above 500 ° C contained only hydrogen, methane and carbon monoxide. It was found that the atomic ratio of nickel to them affects the activity of oxide catalysts Ni-Ce-O in the reaction of steam reforming of ethanol. Thus, as the amount of nickel oxide in the catalyst increases, the hydrogen yield in the Ni-Ce = 5-5 catalyst gradually exceeds the maximum by 82.3%. Based over the X-ray phase analysis, it was initiated that two phases are formed in the Ni-Ce-O catalytic system: NiO and CeO2, and the ratios change according to the directions. The yields of the reaction products and the degree of crystallinity of the catalysts are compared. It was initiated that with an increase in the degree of crystallinity of the trial, the yield of hydrogen passes through a maximum, while the yield of methane passes through a minimum, and the yield of carbon monoxide declines. \u0000Keywords: binary catalysts, hydrogen, bioethanol, methane, crystallinity, steam reforming, activity, carbon monoxide.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127810027","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: 0

REGULARITIES OF RHENIUM COORDINATION WITHPHENANTHROLINE DONOR LIQAND 铼与菲罗啉供体液配位的规律

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-53

Gunel Safarli

引用次数: 0

SYNTHESİS AND STUDY OF MESOPOROUS TİTANİUM-SİLİCATECATALYSTS Synthesİs和介孔材料tİtanİum-sİlİcatecatalysts的研究

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-85

Ramin Majidov, M. Agahuseynova

{"title":"SYNTHESİS AND STUDY OF MESOPOROUS TİTANİUM-SİLİCATE\u0000CATALYSTS","authors":"Ramin Majidov, M. Agahuseynova","doi":"10.32010/ajcn03032021-85","DOIUrl":"https://doi.org/10.32010/ajcn03032021-85","url":null,"abstract":"The paper presents the results of studies on the development of synthesis methods and study of the properties of a catalyst based on titanium silicalite for the synthesis of MEKmethylethylketone. Samples of titanium silicalite were synthesized with different ratios of the starting reagents - tetraethoxysilane and tetrabutoxysilane. Tetra-n-propyl ammonium hydroxide was used as a structure-forming agent. The data of IR spectroscopy and powder Xray diffraction made it possible to establish the effect of the amount of the structure-forming agent on both the structure and morphology of the titanium silicalite obtained. The main product is a mixture of TiO2 and amorphous SiO2. The dependence of the average particle size on the initial ratio of the initial reagents is established: with an increase in the initial molar ratio of the reactants, a change in the size of the catalyst particles is observed. The main indicators of the catalytic activity of the catalyst samples obtained at different initial ratios of reagents are compared. The carried out physicochemical studies on the synthesis of titanium silicalite made it possible to establish the composition that provides the maximum selectivity for the formation of methylethylketone. \u0000Keywords: methylethylketone, mesoporous titanium-silicate catalyst, catalytic activity.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131266512","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: 0

RESEARCH OF HEAT-INSULATING PROPERTIES OF FOAMEDCONCRETES ON BASIS OF BRICK WASTES 基于废砖的泡沫混凝土隔热性能研究

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-64

Yunis Gahramanli

引用次数: 1

THE ACTIVITY OF MOLYBDENE-VANADIUM OXIDE CATALYSTS IN THEISOPROPYL ALCOHOL CONVERSION REACTION 钼钒氧化物催化剂在异丙醇转化反应中的活性

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-73

N. Dushdurova

引用次数: 0

INVESTIGATION OF UNDERGROUND WATER SOURCES WITHHYDROGEN SULFIDE CONTENT ON THE TERRITORY OF SHIMALI 岛马利境内含硫化氢地下水源调查

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-59

N. Guliyeva, Z.U. Abdulazimova

引用次数: 0

RESEARCH OF REGULARITIES OF THE PROCESS OF CATALYTIC GASPHASE OXIDATION OF METHANOL TO FORMIC ACID 甲醇催化气相氧化制甲酸过程规律研究

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-26

G. Aliyev, U. Abasova, Kh Rustamlli

{"title":"RESEARCH OF REGULARITIES OF THE PROCESS OF CATALYTIC GASPHASE OXIDATION OF METHANOL TO FORMIC ACID","authors":"G. Aliyev, U. Abasova, Kh Rustamlli","doi":"10.32010/ajcn03032021-26","DOIUrl":"https://doi.org/10.32010/ajcn03032021-26","url":null,"abstract":"The article presents the results of a study of some regularities of the process of catalytic oxidation in the gas phase of methanol to formic acid. To do this, first, experiments were carried out on a unique laboratory setup at the nodal values of the initial parameters, and then a multiple regression equation for the process was created, the coefficients of the equation were calculated and their significance was determined. The adequacy of the equation was checked and a more sensitive parameter was identified. Using Fisher's criterion, the statistical significance of the equation was proved. Statistical analysis of the obtained regression equation was carried out: checking the significance of the equation and its coefficients, studying the absolute and relative errors of approximation. Paired correlation indicators of the equation coefficients are also calculated. Based on the maximum correlation coefficient, it was concluded that changes in the temperature of the reaction medium have the greatest effect on the yield of formic acid. It was also found that the parameters of the model are statistically significant. \u0000Keywords: methanol, formic acid, catalytic oxidation, regression equation, pair correlation.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114485224","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: 0

INVESTIGATION OF THE GAS MIXTURE ADSORPTION PROCESS IN AFIXED LAYER OF THE NaX ADSORBENT 混合气体在NaX吸附剂固定层中的吸附过程研究

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-38

A. Bayramova

{"title":"INVESTIGATION OF THE GAS MIXTURE ADSORPTION PROCESS IN A\u0000FIXED LAYER OF THE NaX ADSORBENT","authors":"A. Bayramova","doi":"10.32010/ajcn03032021-38","DOIUrl":"https://doi.org/10.32010/ajcn03032021-38","url":null,"abstract":"The paper describes a 4-adsorbent installation for cleaning gas mixtures from H2S, CO2\u0000and NO2 with zeolite. The lower and upper limits of the condensate level in the\u0000separator were controlled by electric contact pressure gauges, and the pressure was\u0000recorded on the operator panel. The number of adsorbers is 4, the height of the fixed\u0000zeolite layer is 3.6 m. Long-term operation of the adsorption unit under real operating\u0000conditions has shown that the temperature of zeolite regeneration largely depends on\u0000the quality of the gas entering the adsorption unit. As can be seen, the desorption of\u0000carbon dioxide is completed at the beginning, then hydrogen sulfide, and at the end -\u0000moisture vapor, and the time for complete desorption of all adsorbed components is\u0000limited by internal diffusion inhibition of the sorbed components. The greatest\u0000desorption time, as expected, is due to moisture vapors. It has been experimentally\u0000established that when heated with hot gas at the maximum permissible speed, the time\u0000for complete desorption of moisture is 150-160 minutes. For practical calculations, the\u0000time required for complete dehydration of the zeolite is taken at least 3 hours, which is\u0000confirmed experimentally.\u0000Keywords: adsorption, synthetic zeolite NaX, fixed adsorbent layer, gas mixture,\u0000desorbed substances.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"185 S497","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113972645","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: 0

OXİDATİVE CONVERSİON OF METHANE. EFFECT OF CATALYSTAND PERSPECTİVE DİRECTİONS OF REACTİON reactİon催化剂perspectİve dİrectİons的效果

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-101

Etibar Ismayilov, D. Taghiyev, S. Zulfugarova, G. Azimova, S. Osmanova, J. Thybaut

引用次数: 0

RESEARCH OF THE PROCESS OF CONCRETE PRODUCTION USING CULLET 利用碎料生产混凝土的工艺研究

Azerbaijan Journal of Chemical News Pub Date : 2021-01-07 DOI: 10.32010/ajcn03032021-04

Hokuma Bafadarova

{"title":"RESEARCH OF THE PROCESS OF CONCRETE PRODUCTION USING CULLET","authors":"Hokuma Bafadarova","doi":"10.32010/ajcn03032021-04","DOIUrl":"https://doi.org/10.32010/ajcn03032021-04","url":null,"abstract":"In this research work, was studied the possibility of using glass waste to produce concrete, while maintaining its quality.The problem of the shortage of natural raw materials for the production of materials for construction purposes has not lost its relevance over the past years. \u0000This is due to the rapidly developing pace of construction. In this regard, the task of the \u0000construction industry is to reorient enterprises towards the consumption of technogenic raw materials. In terms of structure and physicochemical properties, cullet is a mineral resource of anthropogenic origin. Cullet of crushed glass with a grain size of 0-20 mm was introduced into the plastic concrete mixture in the amount of 0, 30, 50, 70 and 100% of the mass of finely dispersed, replacing the sand with this amount of cullet. Concrete samples made from concrete mixtures of various compositions were kept for 7 and 28 days under normal hardening conditions, then a test was carried out to determine the strength and other characteristics of concrete. In order to increase the strength of concrete samples, crushed granite sand and cullet were used as aggregates for subsequent series of samples. The conducted research allows us to confirm that replacing part of the sand with finely dispersed glass is an acceptable way to reduce the use of natural raw materials while maintaining the strength properties of the concrete mixture.\u0000Keywords: concrete, cullet, grinding, fine dispersion, sand, strength, cement, composite \u0000materials, technogenic raw materials.","PeriodicalId":245302,"journal":{"name":"Azerbaijan Journal of Chemical News","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133064994","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: 0