Bulletin of Chemical Reaction Engineering and Catalysis最新文献_第8页

Co-Solvent Free Electrochemical Synthesis of Biodiesel Using Graphite Electrode and Waste Concrete Heterogeneous Catalyst: Optimization of Biodiesel Yield 石墨电极和废混凝土异相催化剂无共溶剂电化学合成生物柴油:生物柴油产率优化

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.10310.179-187

W. P. Wicaksono, Sekar Asmara Jati, I. Yanti, P. K. Jiwanti

引用次数: 2

Catalytic Oxidation of Tartrazine in Aqueous Solution Using a Pillared Clay with Aluminum and Iron 铝铁柱撑粘土催化氧化水溶液中的柠檬黄

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.9978.76-87

Ángel David Gálvez-Serna, Iván F. Macías-Quiroga, Gloria I Giraldo-Gómez, María T. Dávila-Arias, N. R. Sanabria-González

{"title":"Catalytic Oxidation of Tartrazine in Aqueous Solution Using a Pillared Clay with Aluminum and Iron","authors":"Ángel David Gálvez-Serna, Iván F. Macías-Quiroga, Gloria I Giraldo-Gómez, María T. Dávila-Arias, N. R. Sanabria-González","doi":"10.9767/BCREC.16.1.9978.76-87","DOIUrl":"https://doi.org/10.9767/BCREC.16.1.9978.76-87","url":null,"abstract":"In this work, pillared bentonite with Al−Fe (Al−Fe−PILC) was synthesized and used as a heterogeneous Fentonlike catalyst in the oxidation of tartrazine azo-dye in aqueous solution. The modification of bentonite with the AlFe mixed system in a concentrated medium, with ultrasound assisted intercalation was carried out, and the obtained catalyst was characterized by XRF, XRD, and N2 adsorption at 77 K. The oxidation of tartrazine with Al−Fe−PILC, using different amounts of H2O2, expressed as a multiple (1, 3, 6, and 9) of a stoichiometry amount required to completely oxidize the dye was evaluated. The reaction of catalytic wet peroxide oxidation (CWPO) of the dye with 400 mg of Al−Fe−PILC and 6 times the stoichiometric amount of H2O2 at 25 °C, reached 98.2±1.8% of decolorization, 51.9±1.9% of TOC removal and 71.5±1.8% of TN removal. Results of this study show that the oxidation of tartrazine increased with the amount of H2O2 up to a certain limit. This oxidation process can be considered as an alternative for treating wastewater containing azo-dye because the reaction takes place under mild experimental conditions (room temperature and atmospheric pressure). Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"16 1","pages":"76-87"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44164345","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: 2

Catalytic Performance of TiO2–Carbon Mesoporous-Derived from Fish Bones in Styrene Oxidation with Aqueous Hydrogen Peroxide as an Oxidant 鱼骨源tio2 -碳介孔材料在苯乙烯氧化中的催化性能

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.9729.88-96

M. Nurhadi, R. Kusumawardani, T. Wirawan, S. Sumari, S. Y. Lai, Hadi Nur

{"title":"Catalytic Performance of TiO2–Carbon Mesoporous-Derived from Fish Bones in Styrene Oxidation with Aqueous Hydrogen Peroxide as an Oxidant","authors":"M. Nurhadi, R. Kusumawardani, T. Wirawan, S. Sumari, S. Y. Lai, Hadi Nur","doi":"10.9767/BCREC.16.1.9729.88-96","DOIUrl":"https://doi.org/10.9767/BCREC.16.1.9729.88-96","url":null,"abstract":"The catalytic performance of titania-supported carbon mesoporous-derived from fish bones (TiO2/CFB) has been investigated in styrene oxidation with aqueous H2O2. The preparation steps of (TiO2/CFB) catalyst involved the carbonization of fish bones powder at 500 °C for 2 h. followed by impregnation of titania using titanium(IV) isopropoxide (500 μmol) precursor, and calcined at 350 °C for 3 h. The physical properties of the adsorbents were characterized using Fourier transform infrared, X-ray diffraction (XRD), Scanning electron microscopy with energy dispersive X-ray (SEM-EDX), and nitrogen adsorption-desorption studies. The catalytic test was carried out using styrene oxidation with H2O2 as an oxidant at room temperature for 24 h. Its catalytic activity was compared with Fe2O3/CFB, CuO/CFB, TiO2, and CFB catalysts. It is demonstrated that the catalytic activity of TiO2/CFB catalyst has the highest compared to Fe2O3/CFB, CuO/CFB, TiO2, and CFB catalysts in the oxidation of styrene with styrene conversion ~23% and benzaldehyde selectivity ~90%. Kinetics of TiO2/CFB catalyzed oxidation of styrene has been investigated and mechanism for oxidation of styrene has been proposed. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"16 1","pages":"88-96"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41472602","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: 2

Hydro-treating and Hydro-isomerisation of Sunflower Oil using Pt/SAPO-11: Influence of Templates in Ultrasonic Assisted with Hydrothermal Synthesis Pt/SAPO-11对葵花籽油的加氢处理和加氢异构化:超声辅助水热合成中模板的影响

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.9889.120-135

Shanmugam Palanisamy, Durona Palanisamy, Mugaishudeen Gul, K. Kandasamy, B. Gevert

{"title":"Hydro-treating and Hydro-isomerisation of Sunflower Oil using Pt/SAPO-11: Influence of Templates in Ultrasonic Assisted with Hydrothermal Synthesis","authors":"Shanmugam Palanisamy, Durona Palanisamy, Mugaishudeen Gul, K. Kandasamy, B. Gevert","doi":"10.9767/BCREC.16.1.9889.120-135","DOIUrl":"https://doi.org/10.9767/BCREC.16.1.9889.120-135","url":null,"abstract":"Pt/SAPO-11 mesopores type materials has successfully synthesized using different templates, such as: diethylamine (DEA), dimethylamine (DMA), and n-propylamine (n-PA), under ultrasonication coupled with hydrothermal treatment or independently with hydrothermal treatment. The influences of structure directing agent (SDA) and synthesis method are investigated by different characterization techniques and the role of the material as catalyst in hydrotreating of sunflower oil has examined. The synthesized materials have been characterized by X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Fourier Transform Infra Red (FT-IR) techniques. It is found that SAPO-11 material which has synthesized with n-PA as a template has the characteristics of high silicon incorporation. Hydrotreating of sunflower oil is carried out in a fixed bed reactor with Pt impregnated SAPO11 catalyst and a detailed study on the isomerization is performed by varying the operating parameters like temperature and space velocity. The high selectivity of Pt/SAPO-11 catalyst is achieved by uniform pore size and acidity. Also the pore opening of the catalyst has a major effect in the selectivity of the catalyst. Further, it represents a higher ratio of isomers compared to other synthesized catalysts on hydro-treating of sunflower oil. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"16 1","pages":"120-135"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48262177","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: 3

Physical-chemical Characterization of Nano-Zinc Oxide/Activated Carbon Composite for Phenol Removal from Aqueous Solution 纳米氧化锌/活性炭复合材料去除水中苯酚的理化性质研究

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.10282.136-147

A. Allwar, A. Setyani, Ulul Sugesti, Khusna Afifah Fauzani

{"title":"Physical-chemical Characterization of Nano-Zinc Oxide/Activated Carbon Composite for Phenol Removal from Aqueous Solution","authors":"A. Allwar, A. Setyani, Ulul Sugesti, Khusna Afifah Fauzani","doi":"10.9767/BCREC.16.1.10282.136-147","DOIUrl":"https://doi.org/10.9767/BCREC.16.1.10282.136-147","url":null,"abstract":"Oil palm shell was used as a precursor for preparation of activated carbon using different chemical activations (potassium hydroxide (KOH), zinc chloride (ZNCl2), and phosphoric acid (H3PO4)). Each activated carbons (AC) was mixed with nano-zinc oxide to form a composite. From the gas sorption analyzer, it is showed that nitrogen adsorption isotherms show Type II for ZnO/AC-KOH and ZnO/AC-ZnCl2 corresponding to the microand mesoporous structures, respectively. However, the nitrogen adsorption isotherm of ZnO/AC-H3PO4 exhibits the Type I with predominantly microporous structures. The SEM micrographs produced unsmooth surface and different pore sizes. The XRD patterns at 2θ of 25.06° and 26.75° were come from amorphous activated carbon. The peak intensity of ZnO was weak due to low concentration of zinc precursor. However, the ZnO of ZnO/AC-ZnCl2 showed strongly peak intensity. The effectiveness of the composites was examined for phenol removal determined by UV-Vis Spectrophotometer method. The equilibrium adsorption follows the Langmuir and Freundlich models according to the best correlation coefficient (R2). The kinetic model was only obtained for the pseudo-second-order with the best linearity of the correlation coefficient (R2). The results of this study showed that the oil palm shell has a great potential for ZnO/AC with excellent adsorptive property. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"16 1","pages":"136-147"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47819106","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: 3

Nickel-phenanthroline Complex Supported on Mesoporous Carbon as a Catalyst for Carboxylation under CO2 Atmosphere 介孔碳负载镍-菲咯啉配合物催化CO2气氛下的羧化反应

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.9733.111-119

I. Abdullah, Riri Andriyanti, D. A. Nurani, Y. Krisnandi

{"title":"Nickel-phenanthroline Complex Supported on Mesoporous Carbon as a Catalyst for Carboxylation under CO2 Atmosphere","authors":"I. Abdullah, Riri Andriyanti, D. A. Nurani, Y. Krisnandi","doi":"10.9767/BCREC.16.1.9733.111-119","DOIUrl":"https://doi.org/10.9767/BCREC.16.1.9733.111-119","url":null,"abstract":"Carbon dioxide is a highly potential renewable C1 source for synthesis of fine chemicals. Utilization of CO2 in carboxylation reactions requires catalysts, such as: nickel complex for CO2 activation. However, the use of homogeneous catalysts in the reaction is still less efficient due to the difficulty of separating the product and catalyst from reaction mixture. Therefore, it is necessary to heterogenize the nickel complex in a solid support such as mesoporous carbon. In this report, mesoporous carbon (MC) prepared from phloroglucinol and formaldehyde through soft template method was used as a solid support for Ni-phenanthroline complex (Ni-phen). The catalyst was characterized by Fourier Transform Infra Red (FT-IR), X-Ray Diffraction (XRD), Scanning Electron Microscope Energy Dispersive X-Ray (SEM-EDX), and Surface Area Analyzer (SAA). The result of SAA characterization showed that the pore diameter of MC was 6.7 nm and Ni-phen/MC was 5.1 nm which indicates that the materials have mesosize pores. Ni-phen/MC material was then used as a heterogeneous catalyst in the carboxylation reaction of phenylacetylene under an ambient CO2 pressure. The reactions were carried out in several variations of conditions such as temperature, time and catalyst types. Based on the results of the reaction, the best conditions were obtained at 25 °C for 8 h of reaction time using Ni-phen/MC catalyst. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"16 1","pages":"111-119"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47169383","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: 2

High Active Co/Mg1-xCex3+O Catalyst: Effects of Metal-Support Promoter Interactions on CO2 Reforming of CH4 Reaction 高活性Co/Mg1-xCex3+O催化剂:金属载体促进剂相互作用对CH4反应CO2重整的影响

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.9969.97-110

Faris A. J. Al-Doghachi, Diyar M. A. Murad, Huda S. Al-Niaeem, S. H. Al-Jaberi, S. Mohamad, Y. Taufiq-Yap

{"title":"High Active Co/Mg1-xCex3+O Catalyst: Effects of Metal-Support Promoter Interactions on CO2 Reforming of CH4 Reaction","authors":"Faris A. J. Al-Doghachi, Diyar M. A. Murad, Huda S. Al-Niaeem, S. H. Al-Jaberi, S. Mohamad, Y. Taufiq-Yap","doi":"10.9767/BCREC.16.1.9969.97-110","DOIUrl":"https://doi.org/10.9767/BCREC.16.1.9969.97-110","url":null,"abstract":"Co/Mg1−XCeXO (x = 0, 0.03, 0.07, 0.15; 1 wt% cobalt each) catalysts for the dry reforming of methane (DRM) reaction were prepared using the co-precipitation method with K2CO3 as precipitant. Characterization of the catalysts was achieved by X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), X-ray photoelectron spectroscopy (XPS), temperature programmed reduction (H2-TPR), Brunauer–Emmett–Teller (BET), transmission electron microscopy (TEM), and thermal gravimetric analysis (TGA). The role of several reactant and catalyst concentrations, and reaction temperatures (700–900 °C) on the catalytic performance of the DRM reaction was measured in a tubular fixed-bed reactor under atmospheric pressure at various CH4/CO2 concentration ratios (1:1 to 2:1). Using Xray diffraction, a surface area of 19.2 m2.g−1 was exhibited by the Co/Mg0.85Ce0.15O catalyst and MgO phase (average crystallite size of 61.4 nm) was detected on the surface of the catalyst. H2 temperature programmed reaction revealed a reduction of CoO particles to metallic Co0 phase. The catalytic stability of the Co/Mg0.85Ce0.15O catalyst was achieved for 200 h on-stream at 900 °C for the 1:1 CH4:CO2 ratio with an H2/CO ratio of 1.0 and a CH4, CO2 conversions of 75% and 86%, respectively. In the present study, the conversion of CH4 was improved (75%–84%) when conducting the experiment at a lower flow of oxygen (1.25%). Finally, the deposition of carbon on the spent catalysts was analyzed using TEM and Temperature programmed oxidation-mass spectroscopy (TPOMS) following 200 h under an oxygen stream. Better anti-coking activity of the reduced catalyst was observed by both, TEM, and TPO-MS analysis. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"16 1","pages":"97-110"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49049805","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: 2

Study on Ammonia-induced Catalyst Poisoning in the Synthesis of Dimethyl Oxalate 草酸二甲酯合成中氨致催化剂中毒的研究

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-03-31 DOI: 10.9767/BCREC.16.1.9572.1-8

Hua-Wei Liu, S. Qian, Xiao Erfei, Yingjie Liu, Lei Jun, Xianhou Wang, Kong Yuhua

{"title":"Study on Ammonia-induced Catalyst Poisoning in the Synthesis of Dimethyl Oxalate","authors":"Hua-Wei Liu, S. Qian, Xiao Erfei, Yingjie Liu, Lei Jun, Xianhou Wang, Kong Yuhua","doi":"10.9767/BCREC.16.1.9572.1-8","DOIUrl":"https://doi.org/10.9767/BCREC.16.1.9572.1-8","url":null,"abstract":"On an industrial plant, we observed and examined the ammonia-poisoning catalyst for the synthesis of dimethyl oxalate (DMO). We investigated the catalytic activity in response to the amount of ammonia and revealed the mechanism of such poisoning by X-ray photoelectron spectroscopy (XPS) characterization. Our results show that only 0.002% ammonia in the feed gas can significantly deactivate the Pd-based catalyst. Two main reasons were proposed: one is that the competitive adsorption of ammonia on the active component Pd hinders the carbon monoxide (CO) coupling reaction and the redox cycle between Pd0 and Pd2+; and the other is that the high-boiling nitrogen-containing amine compounds formed by reacting with ammonia have adsorbed on the catalyst, which hinders the progress of the catalytic reaction. The deactivation caused by the latter is irreversible. The catalytic activity can be completely restored by a low-temperature liquid-phase in-situ regeneration treatment. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42989737","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

Comparison of Ex-Situ and In-Situ Transesterification for the Production of Microbial Biodiesel 非原位和原位酯交换法生产微生物生物柴油的比较

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-01-01 DOI: 10.9767/bcrec.16.4.11044.733-743

A. Hazmi, F. Ahmad, Ahdyat Zain Athoillah, A. T. Jameel

{"title":"Comparison of Ex-Situ and In-Situ Transesterification for the Production of Microbial Biodiesel","authors":"A. Hazmi, F. Ahmad, Ahdyat Zain Athoillah, A. T. Jameel","doi":"10.9767/bcrec.16.4.11044.733-743","DOIUrl":"https://doi.org/10.9767/bcrec.16.4.11044.733-743","url":null,"abstract":"Microbial biodiesel is converted from microbial lipids via transesterification process. Most microbial biodiesel studies are focusing on the use of microalgal lipids as feedstock. Apart from using microalgae for lipid biosynthesis, lipids can also be extracted from other oleaginous microorganisms like fungi and yeast. However, there are gaps in the studies of lipid production from filamentous fungi, especially in-situ transesterification process. The aim of this project is to compare in-situ with the ex-situ transesterification of fungal biomass from Aspergillus oryzae. In ex-situ transesterification, two methods of lipid extraction, the Soxhlet extraction and the Bligh and Dyer extraction, were performed. For in-situ transesterification, two methods using different catalysts were investigated. Base-catalyzed in-situ transesterification of fungal biomass resulted on the highest Fatty Acid Methyl Esters (FAME) yield. The base-catalyzed in-situ transesterification was further optimized via Central Composite Design (CCD) of Response Surface Methodology (RSM). The parameters investigated were the catalyst loading, methanol to biomass ratio and reaction time. The optimization showed that the highest FAME yield was at 25.1% (w/w) with 10 minutes reaction time, 5% catalyst and 360:1 of the ratio of the methanol to biomass. Based on Analysis of Variance (ANOVA), the model was found to be significant according to the value of “Prob >F” of 0.0028. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71229718","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: 3

Comparative Study on the Catalytic Performance of a 13X Zeolite and its Dealuminated Derivative for Biodiesel Production 13X沸石及其脱铝衍生物催化生物柴油性能的比较研究

IF 1.5

Bulletin of Chemical Reaction Engineering and Catalysis Pub Date : 2021-01-01 DOI: 10.9767/bcrec.16.4.11436.763-772

Balqees A. Alshahidy, A. Abbas

{"title":"Comparative Study on the Catalytic Performance of a 13X Zeolite and its Dealuminated Derivative for Biodiesel Production","authors":"Balqees A. Alshahidy, A. Abbas","doi":"10.9767/bcrec.16.4.11436.763-772","DOIUrl":"https://doi.org/10.9767/bcrec.16.4.11436.763-772","url":null,"abstract":"Natural kaolin clay was used to successfully prepare 13X zeolite catalysts, which were modified by dealumination with citric acid. Acid leaching eliminates impurities and aluminum, and improves the Si/Al ratio of the zeolite framework. The X-ray diffraction (XRD) patterns of both the original and modified 13X zeolites were the same, indicating that the crystalline frameworks were not destroyed during the dealumination process. X-ray fluorescence data of the dealuminated 13X zeolite showed an improved Si/Al ratio. Also, Atomic Force Microscopy (AFM) was used for the characterization of the catalysts. The catalytic performance of the original and modified catalysts was tested in the esterification reaction of oleic acid in a batch reactor. A higher conversion of oleic acid was obtained using the modified 13X zeolite. The resulting experimental data from the esterification reactions were fitted to the heterogeneous Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetic model to determine the rates of reaction. The results of the reaction kinetics showed an increase in the rate of reaction velocity and a distinct decrease in the activation energy when using the modified zeolite, indicating that employing the modified catalyst will give a higher conversion over a shorter time through a reaction with less sensitivity to temperature. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).","PeriodicalId":46276,"journal":{"name":"Bulletin of Chemical Reaction Engineering and Catalysis","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71229677","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: 8