Journal of Chemical Engineering & Process Technology最新文献

{"title":"Analisis Performa Persentase Stripping dan Efisiensi Panas Stripper (DA-101) pada Unit Sintesa Urea PUSRI-II B","authors":"Enggal Nurisman, Merlinda Ariesty Putri, Mayang Bidari","doi":"10.33536/jcpe.v7i2.1197","DOIUrl":"https://doi.org/10.33536/jcpe.v7i2.1197","url":null,"abstract":"","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75501202","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}

{"title":"Blending Batubara Dengan Limbah Biomassa Tongkol Jagung Untuk Mengurangi Ketergantungan Sumber Energi Tidak Terbarukan","authors":"Syukrika Putri, Takdir Syarif, Andi Aladin","doi":"10.33536/jcpe.v7i2.807","DOIUrl":"https://doi.org/10.33536/jcpe.v7i2.807","url":null,"abstract":"Coal reserves as a non-renewable energy resource are running low. To reduce the coal consumption, the present study carried out blending of coal and renewable energy resource from biomass such as corncob. In this study, we observed the effect of blending ratios of corncob to coal in order to establish the recommended blending ratio that meets the requirement of the industry and power plant. The quality parameters observed from the mixture of coal and corncob were calorific value and sulfur content. The coal used in this research has the heating value of 8403 cal / gram and the sulfur content of 0.71%. Meanwhile, the corncob has the calorific value of 3409.64 cal / gram and the sulfur content of 0.14%. The results showed that the best blending ratio of corncob to coal was 75%,","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74832744","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}

{"title":"Process Simulation & Sensitvity Analysis of Cumene Production from an Integrated Alkylation and Transalkylation Reaction","authors":"Hilman Ali Hazmi","doi":"10.33536/jcpe.v7i2.1086","DOIUrl":"https://doi.org/10.33536/jcpe.v7i2.1086","url":null,"abstract":"Cumene is a very important petrochemical commodity, mainly to produce phenol and acetone. The overall growth rate for cumene capacity has been healthy, averaging slightly less than 3.5 % per year to reach 18 million metric tons per year in 2017. The purpose of this study is to generate a steady-state process simulation using ASPEN HYSYS version 10 to produce a small capacity of 10 ton/h of cumene with 99.99 wt % product purity. An alkylation reaction of benzene with propylene is carried out for producing cumene by using a zeolites catalyst as modeled by Badger technology. Transalkylation is also integrated into the system for eliminating unwanted products such as p-diisopropyl benzene. The proposed simulation flowsheet provides a good convergence overall result. The preliminary utility consumption obtained from the simulation consists of approximately 0.0418 kton/h of steam, 1.22 kton/h of cooling water, and 450 kW of electrical duty. Optimization is carried out in the simulation by conducting a sensitivity analysis study to find the optimum operating conditions of the alkylation reactor with a dimension of 1.3 m diameter and 4 m of length. The result shows that at an optimum value of B/P molar ratio of 7, reactant temperature of 170 oC, and reactant pressure of 3 MPa, the selectivity of cumene obtained is at a high value of 0.9446, while the percentage conversion of propylene to cumene obtained is at a high value of 99.99 %.","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83376766","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}

{"title":"Perengkahan Katalitik Distilat Asam Lemak Minyak Sawit (DALMs) menggunakan Katalis HCl Berpenyangga Gamma Alumina","authors":"R. Rasyid, Alda Titania Dewanti, Rahmaniah Malik, Anshariah Anshariah, Ruslan Kalla","doi":"10.33536/jcpe.v7i2.1401","DOIUrl":"https://doi.org/10.33536/jcpe.v7i2.1401","url":null,"abstract":"","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"214 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74159681","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}

{"title":"Pengaruh Variasi Sumber Nitrogen pada Produksi Selulosa Bakteri dari Limbah Kulit Pisang","authors":"J. R. H. Panjaitan, Adhitia Wibowo","doi":"10.33536/jcpe.v7i2.1223","DOIUrl":"https://doi.org/10.33536/jcpe.v7i2.1223","url":null,"abstract":"","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86475830","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}

{"title":"Pirolisis Katalitik Minyak Pelumas Bekas Menjadi Bahan Bakar Cair Menggunakan Zeolit Alam","authors":"Reno Fitriyanti, Muhrinsyah Fatimura, Rully Masriatini","doi":"10.33536/jcpe.v7i2.973","DOIUrl":"https://doi.org/10.33536/jcpe.v7i2.973","url":null,"abstract":"10%(w/w","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75761382","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}

{"title":"Produksi Biogas dari Kotoran Sapi dengan Biodigester Kontinyu dan Batch: Review","authors":"Lukhi Mulia Shitophyta, Masreza Hari Darmawan, Yestri Rusfidiantoni","doi":"10.33536/jcpe.v7i2.903","DOIUrl":"https://doi.org/10.33536/jcpe.v7i2.903","url":null,"abstract":"Sumber energi terbarukan perlu terus dikembangkan untuk menekan ketersediaan bahan bakar fosil yang sudah semakin menipis. Biogas merupakan salah satu energi alternatif dengan memanfaatkan limbah organik seperti kotoran sapi. Pengolahan kotoran sapi sebagai bahan baku biogas dapat menggunakan biodigester tipe kontinyu dan tipe batch. Biodigester kontinyu selalu berisi 80% umpan dari volume total (50 liter) dan 20% sisanya sebagai ruang gas. Biodigester tipe batch kapasitas 220 liter memiliki komposisi  kotoran sapi dan rumput gajah sebesar 25 kg : 25 kg dengan penambahan air 100 liter. Produksi biogas dilakukan selama 70 hari. Hasil penelitian menunjukkan bahwa biodigester kontinyu menghasilkan volume biogas total 17.520 ml dan kandungan CH4 51,37%, sedangkan untuk biodigester batch menghasilkan volume biogas total 66.484 ml dan kandungan CH4 31,37%. Uji nyala untuk biodigester kontinyu menunjukkan bahwa setelah hari ke-12 nyala api berwarna biru dan menyembur cukup kuat pada saat katup pengaturan gas dibuka dan dikenakan api, tetapi pada biodigester batch tidak menghasilkan nyala api karena kadar CH4 kurang dari 45%. Biodigester tipe kontinyu dengan kapasitas 50 L menghasilkan volume biogas lebih tinggi dibandingkan dengan tipe batch yang berkapasitas 220 liter","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"225 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91451274","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}

{"title":"PreparasiI Katalis Nanomaterial dari Cangkang Kerang Darah (Anadara Granosa Linn) untuk Pembuatan Biodiesel dari Minyak Jelantah dengan Menggunakan Microwave","authors":"Ardiansah Ardiansah, Hermin Hardyanti Utami, Shokhul Lutfi, Cherly Firdharini","doi":"10.33536/jcpe.v7i1.1034","DOIUrl":"https://doi.org/10.33536/jcpe.v7i1.1034","url":null,"abstract":"The benefit of blood shell waste include being used as a catalyst for biodiesel production. This research aims at finding the characteristics of catalysts made of Journal of Chemical Process Engineering e-ISSN Number 2655 2967 9 the blood clamshells. The research applies the methods of esterification and Transesterification by using the microwave and the used cooking oil. The result of the research indicates that (1) based on the XRD analysis results it is known that the main peak of the angle phase of 30 in 34.10 degree shows that the obtained compound is the Hydroxide Calcium (Ca(OH)2) . Besides that the peak of angle diffraction of 2θ on 64.20 ̊ indicates the existence of a calcium oxide compound. The result of SEM points out the shells of the blood clams as the result of calcination have an ununiformed shapes and some of them are aggregated based on the Sherrer equation which produces average crystal sizes of 23.77 nm. The biodiesel fuel produced through the process of blood clamshell catalyst contains the density of 0.89 g/ml, viscosity of 4.05 mm /s, acid density of 0.21 Mg KOH/g and total glycerol as much as 0.27%. The mass with maximum time of biodiesel production is on the minute of 15 with 3%wt/wt of concentration with the oil moll and methanol ration of 1:12.","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74852360","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}

{"title":"Analisa Tegangan Panas Housing Batang Kendali Reaktor Nuklir Dalam Batas Desain SA403X","authors":"Anni Rahmat, Yunia Kurniati, Fahmi Alfa Muslimu","doi":"10.33536/jcpe.v7i1.995","DOIUrl":"https://doi.org/10.33536/jcpe.v7i1.995","url":null,"abstract":"","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78477968","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}

{"title":"Recovery Fosfat Pada Hasil Ekstraksi Dolomit Sebagai Mineral Struvite Dengan Metode Aerasi","authors":"Rafiqa Falah, Maria Rizky Fauziah, L. Edahwati","doi":"10.33536/jcpe.v7i1.1141","DOIUrl":"https://doi.org/10.33536/jcpe.v7i1.1141","url":null,"abstract":"If the growth demand of fetrtilizer is constant at 3% per year, the remaining accessible phosphate reserves from phosphate minerals will run out in about 50 years. The simplest way to help it last longer is by reducing the use of phosphate. However, there is an alternative for saving phosphate reserves, by recovering phosphate which has another advantage of eutrophication. Struvite is an optimal mineral phosphate recovery and works Journal of Chemical Process Engineering e-ISSN Number 2655 2967 34 as a slow release fertilizer. The manufacture of struvite in this study was carried out by reacting the extraction results of dolomite (Mg3(PO4)2) and Ammonium Hydroxide (NH4OH). The MAP ratio variation is 1:1:1, 1.5:1:1, 2:1:1, 2.5:1:1 and 3:1:1. The addition of NaOH with various concentrations is operated to obtain a various pH, such as 7, 8, 9, 10, and 11. In the aeration method, the air flow rate is needed and we use 1L/min In phosphate recovery aeration is needed for the stirring process in the solution. We use X-ray Fluorescence (XRF) test in this research, so we know the highest phosphate mineral content in the formation of struvite. The highest phosphate recovery was obtained at a MAP ratio of 2.5: 1: 1 with a pH of 9. The result of phosphate recovery obtained was 84.3%, according to SNI 02-3776-2005 the P content in the struvite fertilizer produced in this study has good level of quality. PENDAHULUAN Mineral fosfat merupakan sumber daya mineral yang tidak terbarukan, dan tidak dapat diganti. Konsumsi fosfat dunia yang progresif diperkirakan akan memberi lebih banyak tekanan pada penurunan persediaan fosfat. Sisa cadangan fosfat yang dapat diakses dari mineral fosfat diperkirakan akan habis dalam 50 tahun, jika pertumbuhan permintaan pupuk tetap 3% per tahun. Mengurangi penggunaan fosfat secara berlebihan, akan membantu cadangan fosfat bertahan lebih lama. Adapun alternatif untuk menghemat cadangan fosfat adalah dengan recovery fosfat, yang memiliki keuntungan tambahan untuk meminimalkan eutrofikasi. Struvite merupakan recovery mineral fosfat yang optimal dan berfungsi sebagai pupuk lepas lambat. [1] Struvite merupakan kristal putih dan dikenal dengan nama kimia magnesium amonium fosfat (MAP) dengan rumus kimia yaitu MgNH4PO4.6H2O. Pembentukan Struvite dilakukan dengan mereaksikan Mg, NH4 + dan PO4 . [2] Recovery fosfat sebagai struvite, memanfaatkan magnesium fosfat dari hasil ekstraksi dolomit sebagai bahan baku. Diperoleh hasil analisa magnesium fosfat pada ekstraksi dolomit sebesar 9,78% Mg dan 22,37% PO4. Reaksi dalam pembentukan struvite yaitu sebagai berikut, [3]: Mg+NH4 +PO4 +6 H2O→MgNH4PO4.6H2O + H + (1) Berdasarkan keprihatinan terhadap kelangkaan fosfat di dunia, sehingga banyak dilakukan penelitian dalam menciptakan alternatif baru. Hal ini didukung dengan penelitian yang telah dilakukan, [4] menunjukkan bahwa effisiensi recovery PO4 sangat dipengaruhi oleh pH larutan, dan effesiensi mencapai nilai maksimum pada pH 9. Effisiensi reco","PeriodicalId":15308,"journal":{"name":"Journal of Chemical Engineering & Process Technology","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85950523","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}