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All Journal Reaktor International Journal of Science and Engineering (IJSE) JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Majalah Ilmiah MOMENTUM Jurnal Inovasi Teknik Kimia
Herry Santosa
Chemical Engineering Department Faculty Of Engineering Diponegoro University
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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PEMANFAATAN KOMBINASI FLY ASH BATUBARA, ALKILBENZENESULFONAT, DAN ZEOLIT PADAPENJERNIHAN MINYAK PELUMAS BEKAS DENGAN METODE PENJERAPAN Risang Prasaji; Conny Dewita U; Herry Santosa
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (152.067 KB)

Abstract

The using of mineral lubricating oils from petroleum fractionation happen in very fantastic number. Acording to data form central statistics agency republic of indonesia, the number of production of base oil for lubricant is 2.027.000 barrel in the year 2010. While the need of lubricating oil is 5.994.956 kl per year. On the one hand, increasingly depleted oil reserves so that the manufacture of lubricating oil (base oil) is also diminishing. Thus, research in order to reuse the used lubricating oil to be base oil is highly prospective.The research is intended to (a) determine the weight of fly ash as adsorbent that is relatively good, (b)determine the comparison volume of alkilbenzenesulfonat against weight of zeolit relatively good until obtained lubricating oil former which fullfill the criteria as base oilThe study is planned in two stages. First, the preparatory phase consisting of (a) the characterization of used lubricating oil viscosity based on the test and the% transmittance, (b) reduce and activate the natural zeolite. Second, adsorption and purification steps to remove contaminants in the form of a solid material, metal, and water.At this stage of adsorption experiments were performed by varying the weight of coal flyash each unit volume of used lubricating oil.At this stage ofpurification, experiments were performedby varyingthe weight ratioof zeoliteto thevolumeperunitvolumealkilbenzenesulfonateused lubricatingoil. At eachend of the experiment theresultswas tested againstthe absorbance ofthe lubricating oilviscosity.
ADSORBSI Fe DENGAN MENGGUNAKAN ZEOLIT ALAM SUATU USAHA UNTUK MENINGKATKAN MUTU MINYAK NILAM Bhagus Alfiyan; Hamdillah Usman; Herry Santosa
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.859 KB)

Abstract

Patchouli oil quality could be determined by the amount of Fe impurity contained in. The presence of Fe in patchouli oil is an accomplished fact, nevertheless its presence, for some cases, isn’t desirable. Adsorption is a method to reduce the amount of Fe in patchouli oil. The research would be done beyond by two steps.  First step is preparation of active zeolite which consists of (1) reducing zeolite size into 80 mesh and (2) activating the zeolite. In this step, zeolite  will be immersed  into 250 ml  KMnO4 1 M solution during 24 hours then it will be dried  using   110-1200C oven during 30 minutes.  Second step is Fe adsorption in patchouli oil. The aim of adsorption step is to determine the most influencing independent variable among the weight of zeolit, adsorption temperature, and adsorption time using 2 levels Factorial Design Method. The adsorption will be done on 5 gr and 10 gr weight of zeolit, 300C and 900C adsorption temperature, along with 30 minutes and 60 minutes adsorption time.  The analysis of the amount of Fe that can be reduced will be done using Atomic Absorption Spectrofotometry (AAS) at the end of each variable. From experiment result, we have determined that the weight of zeolite is the most influencing independent variable to reduce Fe in patchouli oil.
PEMBUATAN BERAS ANALOG BERBAHAN DASAR TEPUNG SUKUN TERMODIFIKASI HEAT MOISTURE TREATMENT Herry Santosa; Noer Abyor Handayani; Ahmad Dzulfikar Fauzi; Anwar Trisanto
Jurnal Inovasi Teknik Kimia Vol 3, No 1 (2018)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v3i1.2124

Abstract

Beras merupakan sumber karbohidrat utama bagi masyarakat Indonesia.. Seiring dengan bertambahnya penduduk maka kebutuhan beras juga akan meningkat. Jika pemenuhan akan kebutuhan beras tersebut tidak dapat dipenuhi maka dikuatirkan akan menjadi ancaman terhadap ketahanan pangan nasional. Pemerintah berupaya mencegah permasalahan tersebut dengan cara menggerakkan upaya diversifikasi pangan. Salah satunya adalah rekayasa produk berupa beras analog.Tujuan utama dari penelitian ini adalah mengubah buah sukun menjadi beras analog dengan menerapkan proses modifikasi tepung secara HMT (Heat Moisture Treatment). Penelitian dilakukan melalui 3 tahap, yaitu (1) tahap penetuan variabel paling berpengaruh proses HMT, (2)tahap optimasi variabel paling berpengaruh, dan (3) tahap pembuatan beras analog. Variabel operasi paling berpengaruh dalam modifikasi HMT adalah suhu. Untuk memenuhi kriteria karakterisitk swelling power dan solubillity beras mentik, sebaiknya modifikasi dilakukan pada suhu 100°C, waktu 1 jam dan kadar air 30% w/w. Tepung sukun dapat dicetak menyerupai beras  menggunakan ekstruder. Kata kunci: beras analog, buah sukun, heat moisture treatment
Co-Authors Aditya Yuna Aditya Yuna Ahmad Dzulfikar Fauzi Antonius Prihanto Anwar Trisanto Aprilina Purbasari Bambang Pramudono Berlian Arswendo Adietya Bhagus Alfiyan Bunga Profegama Bunga Profegama Conny Dewita U Deissy L Nusanthary Dessy Ariyanti Elliza Rosida Colby Hamdillah Usman Heny Kusumayanti Johanna Lianna Kristinah Haryani Lis Pudiastuti Noer Abyor Handayani Noer Abyor Handayani Risang Prasaji Tika Pratiwi Yunia Karyati