Article Per Year (5 Year)
p-Index From 2020 - 2025
2.036
P-Index
This Author published in this journals
All Journal Jurnal Rekayasa Proses Jurnal Sains dan Teknologi World Chemical Engineering Journal JURNAL INTEGRASI PROSES Jurnal Teknika Jurnal Rekayasa Proses Jurnal Rechten : Riset Hukum dan Hak Asasi Manusia Jurnal Hukum dan HAM Wara Sains Jurnal Pengabdian West Science West Science Law and Human Rights Jurnal Pengabdian Dinamika JURNAL REKAYASA KIMIA & LINGKUNGAN
Heri Heriyanto
Unknown Affiliation
Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Engineering Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

Published : 18 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 18 Documents
Search

 1   2 
Pengaruh Suhu Dan Pengadukan Pada Proses Polimerisasi Ethylen Bi-Stearamide Heriyanto, Heri; Ernayati, Widya; Anggraeni, Mona; Fitrian, .
TEKNIKA Vol 12, No 1 (2016): Juni
Publisher : Fakultas Teknik Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ethylene Bis Stearamide ( EBS ) merupakan senyawa biopolimer yang terbentuk melalui proses polimerisasi antara asam stearat dan ethylendiamine. EBS dapat digunakan sebagai pelumas internal dan eksternal untuk plastisitas termal dan plastik termoset, seperti ABS, PS, AS, dan PVC, serta PE, PP, PVAC, selulosa, acctate, nylon, pheonolic resin. Tujuan dari penelitian ini adalah untuk mengetahui temperatur operasi dan pengadukan optimum, sehingga dapat menghasilkan produk EBS yang sesuai dengan SNI. Parameter uji yang diamati adalah angka asam, dan spektrofotometer infra merah sesudah dilakukan reaksi. Terdapat tiga tahapan proses, yaitu proses pengumpanan ethylendiamine, proses polimerisasi EBS serta proses pencucian produk EBS yang dihasilkan. Kondisi optimum menghasilkan produk EBS yang sesuai dengan SNI adalah pada suhu 180 oC dan kecepatan pengadukan 700 rpm. Kondisi ini dicapai dalam waktu 360 menit sehingga menghasilkan produk EBS dengan bilangan asam 1,197 gr NaOH/gr EBS, dan spektrofotometer infra merah menunjukkan adanya gugus amida di dalam produk EBS yang dihasilkan.
Kinetika Reaksi Alkyd Resin Termodifikasi Minyak Jagung dengan Asam Phtalat Anhidrat Heri Heriyanto; Rochmadi Rochmadi; Arief Budiman
Jurnal Rekayasa Proses Vol 5, No 1 (2011)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.803 KB) | DOI: 10.22146/jrekpros.1892

Abstract

Reaksi esterifikasi anhidrida phtalat dengan monogliserida merupakan reaksi kondensasi membentuk polimer dengan rantai linier. Penelitian ini bertujuan untuk mempelajari kinetika reaksi alkid resin termodifikasi minyak jagung tanpa menggunakan katalis. Proses penelitian ada dua tahap yaitu tahap pertama reaksi alkoholisis dan tahap kedua reaksi esterifikasi. Tahap alkoholisis diawali dengan mereaksikan minyak jagung dan gliserol dengan perbandingan molar 1:2 pada suhu 250°C. Sampel diambil pada selang waktu 30 menit selama 3 jam untuk dianalisis kadar gliserol bebasnya dengan metode iodometri (FBI-AO2-03). Tahap esterifikasi adalah mencampurkan anhidrida phtalat ke dalam reaktor batch dengan perbandingan molar gliserol : anhidrida phtalat 3:2. Sampel dianalisis kadar gugus OH- dengan metode asetat anhidrida. Peubah-ubah yang dipelajari meliputi variasi suhu dari 230°C – 260°C dan variasi perbandingan ekivalen OH/COOH dari 1 – 1,25. Berdasarkan hasil penelitian diambil kesimpulan bahwa minyak jagung dan gliserol dapat dialkoholisis tanpa menggunakan katalis pada kisaran suhu 230°C – 260°C. Pengaruh suhu terhadap konstanta kecepatan reaksi dinyatakan dengan persamaan Arrhenius adalah sebagai berikut : k1=1,4647×104 exp (-8237,7/T) (g/mgek.men) k4=2,1398×109 exp (-14142/T) (g/mgek.men) Kata kunci: alkoholisis, esterifikasi, minyak jagung, gliserol, anhidrida phtalat Esterification of phthalic anhydrate with monoglyceride is a condensation reaction to form a linear chain polymer. The present work aimed at investigating reaction kinetics of alkyd resin modified with corn oil in the absence of catalyst. The work consisted of two steps i.e. alcoholysis and esterification. In the alcoholysis step, corn oil and glycerol were brought into reaction with a molar ratio of 1:2 at 250°C. Every 30 minutes during 3 hour reaction, reaction products were sampled to analyse the remaining free glycerol by iodometry method (FBI-AO2-03). In the esterification step, phthalic anhydrate was put in the batch reactor with a glycerol-phthalic anhydrate molar of 3:2. Samples were taken and the hydroxyl ions were analysed by acetate anhydrate method. The variables investigated in the present work were reaction temperatures varied from 230°C to 260°C and equivalent OH/COOH ratio from 1 to 1.25. Experimental results showed that alcoholysis of corn oil and glycerol could be carried out in a temperature range of 230°C to 260°C without the presence of catalyst. The effect of temperature on the reaction rate constant of monoglyceride and phthalic ester formation could be respectively written in the Arrhenius correlations as follows: k1 = 1.4647.104 exp (-8237.7/T) g/mgeq.min k4 = 2.1398.109 exp (-14142/T) g/mgeq.min Keywords: alcoholysis, esterification, corn oil, glycerol, phthalic anhydrate
PENGARUH PENAMBAHAN SELULOSA DARI TANAMAN ECENG GONDOK (Eichornia crassipes) DALAM PEMBUATAN BIOPOLIMER SUPERABSORBEN Heri Heriyanto; Ikhsan Firdaus; Ana Fadilah Destiani
JURNAL INTEGRASI PROSES VOLUME 5 NOMOR 2 Juni 2015
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.413 KB) | DOI: 10.36055/jip.v5i2.203

Abstract

Polimer superabsorben (Superabsorbent Polymer/SAP) adalah suatu bahan yang dapat mengabsorpsi dan menyimpan cairan lebih dari berat bahannya. Penelitian ini bertujuan untuk mengetahui pengaruh rasio penambahan selulosa terhadap sifat fisik dan daya absorbsi produk biopolimer superabsorben dan mengetahui pengaruh penambahan zat aditif crosslink terhadap kualitas polimer superabsorben berbasis selulosa. Pembuatan polimer superbsorben dilakukan dengan memvariasikan persentase penambahan selulosa 0%; 10%; 20%; 30% dan 40%, variasi penambahan cross linker agent pada polimerisasi yaitu 0 ml, 0,7 ml dan 1,4 ml larutan Formalin. Pengukuran kapasitas absorbsi air, nilai pengujian rasio swelling superabsorben dalam larutan urea dan pengujian rasio swelling superabsorben dalam larutan NaCl digunakan untuk menentukan karakteristik superabsorben yang disintesis. Hasil penelitian menunjukkan polimer superabsorben yang dihasilkan dengan penambahan selulosa memiliki karakteristik yang lebih baik dibandingkan poliakrilamida yang disintesis. Polimer superabsorben dengan rasio 10% berat selulosa terhadap berat superabsorben mempunyai nilai kapasitas absorbsi sebesar 2,8 g air/g superabsorben, rasio swelling pada larutan Urea 5% sebesar 3,78 dan rasio swelling dalam larutan NaCl 0,15 M sebesar 3,8. Pengaruh penambahan Formalin sebanyak 0,7 ml memberikan hasil nilai rata-rata kapasitas absorbsi, rasio swelling pada larutan urea 5% dan rasio swelling dalam larutan NaCl 0,15 M yang lebih besar.
Kinetika Reaksi Alkyd Resin Termodifikasi Minyak Jagung dengan Asam Phtalat Anhidrat Heri Heriyanto; Rochmadi Rochmadi; Arief Budiman
Jurnal Rekayasa Proses Vol 5, No 1 (2011)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.1892

Abstract

Reaksi esterifikasi anhidrida phtalat dengan monogliserida merupakan reaksi kondensasi membentuk polimer dengan rantai linier. Penelitian ini bertujuan untuk mempelajari kinetika reaksi alkid resin termodifikasi minyak jagung tanpa menggunakan katalis. Proses penelitian ada dua tahap yaitu tahap pertama reaksi alkoholisis dan tahap kedua reaksi esterifikasi. Tahap alkoholisis diawali dengan mereaksikan minyak jagung dan gliserol dengan perbandingan molar 1:2 pada suhu 250°C. Sampel diambil pada selang waktu 30 menit selama 3 jam untuk dianalisis kadar gliserol bebasnya dengan metode iodometri (FBI-AO2-03). Tahap esterifikasi adalah mencampurkan anhidrida phtalat ke dalam reaktor batch dengan perbandingan molar gliserol : anhidrida phtalat 3:2. Sampel dianalisis kadar gugus OH- dengan metode asetat anhidrida. Peubah-ubah yang dipelajari meliputi variasi suhu dari 230°C – 260°C dan variasi perbandingan ekivalen OH/COOH dari 1 – 1,25. Berdasarkan hasil penelitian diambil kesimpulan bahwa minyak jagung dan gliserol dapat dialkoholisis tanpa menggunakan katalis pada kisaran suhu 230°C – 260°C. Pengaruh suhu terhadap konstanta kecepatan reaksi dinyatakan dengan persamaan Arrhenius adalah sebagai berikut : k1=1,4647×104 exp (-8237,7/T) (g/mgek.men) k4=2,1398×109 exp (-14142/T) (g/mgek.men) Kata kunci: alkoholisis, esterifikasi, minyak jagung, gliserol, anhidrida phtalat Esterification of phthalic anhydrate with monoglyceride is a condensation reaction to form a linear chain polymer. The present work aimed at investigating reaction kinetics of alkyd resin modified with corn oil in the absence of catalyst. The work consisted of two steps i.e. alcoholysis and esterification. In the alcoholysis step, corn oil and glycerol were brought into reaction with a molar ratio of 1:2 at 250°C. Every 30 minutes during 3 hour reaction, reaction products were sampled to analyse the remaining free glycerol by iodometry method (FBI-AO2-03). In the esterification step, phthalic anhydrate was put in the batch reactor with a glycerol-phthalic anhydrate molar of 3:2. Samples were taken and the hydroxyl ions were analysed by acetate anhydrate method. The variables investigated in the present work were reaction temperatures varied from 230°C to 260°C and equivalent OH/COOH ratio from 1 to 1.25. Experimental results showed that alcoholysis of corn oil and glycerol could be carried out in a temperature range of 230°C to 260°C without the presence of catalyst. The effect of temperature on the reaction rate constant of monoglyceride and phthalic ester formation could be respectively written in the Arrhenius correlations as follows: k1 = 1.4647.104 exp (-8237.7/T) g/mgeq.min k4 = 2.1398.109 exp (-14142/T) g/mgeq.min Keywords: alcoholysis, esterification, corn oil, glycerol, phthalic anhydrate
The Influence of Kerosene to Increase the Quality of Coal from Bayah South Banten Using UBC Methode Heriyanto, Heri; Ernayati, Widya; Yulvianti, Meri; Sutijan, Sutijan
World Chemical Engineering Journal VOLUME 1 NO. 1 JUNE 2015
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v1i1.262

Abstract

The increasing price and the decreasing stock of fossil fuel nowadays are two factorsthat make the use of alternative fuel with lower price become necessity. The source ofenergy that can be used to fill the gap between convensional fossil fuel towards cleanerand renewable energy is Coal. South Banten has a massive stock of coal, around 70% ofall the mineral sources in South Banten, but the quality of the coal is low, due to thesulfur content around 2.28 % dry basis and a high water content that lead to the lowestcalor content. The aim of this research is to lowering the sulfur and water content ofthe coal. Upgrading Brown Coal methode is the methode used to reach the aim stated.The research was settle at temperature 150: C, pressure 350 kPa, and addition ofkerosene as the solvent. The result of the research shows the increasing of calorcontent and the decreasing sulfur content when the evaporation temperature graduallyincreased.
Synthesis of Alkyd Resin Through Alcoholysis – Polyesterification Process from Used Cooking Oil Pretreatment Using Alkaline Activated Natural Bayah Zeolite Suhendi, Endang; Heriyanto, Heri; Fitri Asyuni, Nadya; Kiki Shahila, Ilham
World Chemical Engineering Journal VOLUME 6 NO. 2 DECEMBER 2022
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v6i2.17882

Abstract

Waste cooking oil can be treated by an adsorption process using Bayah natural zeolite as raw material for alkyd resin synthesis. This study aimed to determine the optimum conditions for the equivalent ratio of OH:COOH and the temperature of the alkyd resin synthesis. The research was carried out by preparing used cooking oil and Bayah natural zeolite (BNZ), adsorption process, and alkyd resin synthesis through the alcoholysis-polyesterification process. The optimum addition of Bayah natural zeolite-activated NaOH 0.75 N in pretreatment waste cooking oil is 30% weight in terms of color, density, viscosity, and functional group characteristics of the resulting alkyd resin. The characteristics of the alkyd resin product at optimum conditions obtained light brown color with an OH: COOH equivalent ratio of 1.4, and the alcoholysis and esterification temperature at 190 oC with a density value is 1.112 g/cm3, FFA value is 0.1528%, viscosity value is 4808 cP. The ester functional group at wavelengths 1267 cm-1 and 1722 cm-1, the 1H NMR spectrum of the ester group at the peak of 3.5 ppm, and a functional group of 7.6 ppm.
The Effect of Polypropylene and Low-Density Polyethylene Mixtures in the Pyrolysis Process on the Quantity and Quality of the Oil Products Suhendi, Endang; Heriyanto, Heri; Ammar, Muhammad; Tsania, Ayu; Anam, Muhammad Khairul
World Chemical Engineering Journal VOLUME 7 NO. 2 DECEMBER 2023
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v7i2.23121

Abstract

Plastic waste is a type of waste that has economic value when processed properly, one of which is by converting it into fuel oil using the pyrolysis method. Pyrolysis of plastic waste involves the decomposition of materials at high temperatures without the presence of oxygen. This study aimed to examine the effect of the mixture of polypropylene (PP) plastic waste and low-density polyethylene (LDPE) plastic waste in the pyrolysis process on the quantity and quality of the oil products. The ratio of PP:LDPE was varied to 100 kg : 0 kg, 70 kg : 30 kg, 50 kg : 50 kg, and 30 kg : 70 kg. The pyrolysis was conducted at a temperature of 350ºC for 10 hours. The research results show that the highest yield value of 82.24% wt. is obtained at PP:LDPE ratio of 100 kg : 0 kg. Furthermore, the best pyrolysis oil products are obtained at PP:LDPE ratio of 70 kg : 30 kg. The gasoline, kerosene, and diesel fuel products have densities of 760 kg/m3, 776.4 kg/m3, and 873 kg/m3, respectively. Then, the gasoline and diesel fuel have calorific values of 10,836 cal/g and 10,996.5 cal/g. The cetane number of diesel fuel is 42, while the octane number of gasoline is 78.9.
Characteristics of Refuse-Derived Fuel (RDF) at The Waste Processing Facility (WPF) of The Faculty of Engineering, Untirta Suhendi, Endang; Heriyanto, Heri; Jundika, Paerus; Rizkiantika, Natasya
World Chemical Engineering Journal VOLUME 7 NO.1 JUNE 2023
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v7i1.20614

Abstract

Landfill in Cilegon City has an impact on the environment, so processing is needed, one of which is converting waste into RDF fuel. The conversion of waste into RDF provides benefits by reducing the amount of waste sent to landfills and utilizing renewable energy as fuel. The composition of mixed materials in RDF has potential characteristics that affect the quality of the resulting RDF. The study objective is to study the effect of the composition of a mixture waste of organic (leaves) and LDPE plastic on the characteristics of RDF. The research was conducted with composition ratios of organic waste (leaves) and LDPE plastic waste at 95:5, 90:10, 85:15, and 80:20 (% wt.). The results showed that the optimal RDF product was produced with a composition of 85:15 and with the addition of 10% starch. These results indicate the characteristics of RDF, including an ash content of 14.681%, moisture content of 11.215%, volatile matter of 54.465%, fixed carbon of 19.469%, calorific value of 4598.017%, bulk density of 0.706 g/cm3, and compressive strength of 6.69 kg/cm2. It has the potential to be a good alternative for using RDF as fuel in boilers.
Utilization of CO2 Gas Emission Into Economically Valuable Products In the Form of Carbonate and Alcohol: Article Review Nuryoto Nuryoto; Heri Heriyanto; Rafiif Nur Tahta Bagaskara
Jurnal Rekayasa Kimia & Lingkungan Vol 19, No 2 (2024): Jurnal Rekayasa Kimia dan Lingkungan (December, 2024)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v19i2.37741

Abstract

Climate change can trigger increases in extreme temperature, ice melt, rising sea levels, and changes in precipitation patterns. The contribution of carbon dioxide (CO2) for that causes climate change has a large contribution. Quick and precise steps to reduce CO2 emissions must be taken to avoid further negative impacts, one of which is converting CO2 gas into an economically valuable product. This study is a literature review focused on the utilization of CO2 gas to produce products in the form of sodium carbonate and methanol. The hope was that this study would provide initial information to understand the condition of the chemical reaction process that can produce maximum, effective, and efficient sodium carbonate and methanol products. The purpose of this research was to conduct an analysis related to the variable that affected the chemical reaction in the synthesis of sodium carbonate and methanol using CO2 gas as the raw material, referring to previous research. The study results show that the pH parameter could be used as preliminary information to predict that the absorption process of SOx, NOx and CO2 had occurred in the solvent and chemical reactions. In another study which methanon synthesis, the highest CO2 conversion was achieved using a Cu- ZnOMOF/Al2O3 catalyst, which was 9.1% with selectivity of 86.9%.
TEKNOLOGI PENGOLAHAN LIMBAH BIJI KARET MENJADI PRODUK OLAHAN MAKANAN RINGAN Riabarleany, Dhena; Heriyanto, Heri; Muliyadini, Winny
Jurnal Pengabdian Dinamika Vol 4, No 1 (2017)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/dinamika.v4i1.8739

Abstract

Lebak is a district in Banten province with high potential in agriculture and plantation. Rubber seed is produced from rubber plantation which was not well utilized. Rubber seed can be processed to be some food products, such as bread, chip, and traditional snack called opak. This program purposed to give the information to the society especially lived in Lebak district about food processing from rubber seed. Method used in this program was held by the socialization in front of Lebak district society in the form of discussion and practices. This program results food product ( bread, chip, and opak) from rubber seed.
Co-Authors . Fitrian, . Ana Fadilah Destiani Anam, M. Khairul Arief Budiman Dewi Yasya, Annisa Endang Suhendi, Endang Fitri Asyuni, Nadya Ikhsan Firdaus Jaman, Ujang Badru Judijanto, Loso Julvita, Herliza Jundika, Paerus Khuan, Hendri Kiki Shahila, Ilham Meri Yulvianti Mona Anggraeni, Mona Muhammad Ammar Muliyadini, Winny Nuchraha Alhuda Hasnda Nufus Kanani, Nufus Nuryoto Nuryoto Nuryoto Padlillah, Padlillah Pujiastuti, Hendrini Putri, Vina Karina Rafiif Nur Tahta Bagaskara Rahma Putri, Azzahra Rahmawati, Leli Riabarleany, Dhena Rizkiantika, Natasya Rochmadi Rochmadi Sahrul, Sahrul Sopian sopian Suhendi, Endang Suhendi, Endang Sutijan Tsania, Ayu Widya Ernayati Kosimaningrum