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All Journal KOVALEN: Jurnal Riset Kimia Jurnal Kimia Riset FLUIDA
Mukhtar Ghozali
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Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Environmental Science Materials Science & Nanotechnology

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Pengaruh Waktu Hidrotermal terhadap Karakteristik Zeolite Socony Mobile-5 (ZSM-5) Tanpa Template Menggunakan Reaktor Autoclave: The Effect of Hydrotermal Time in Characteristics of Zeolite Socony Mobile-5 (ZSM-5) Without Template Using Autoclave Reactor Mukhtar Ghozali; Gamaliel Tanaka; Muhammad Misbahussalam; Tifa Paramitha
KOVALEN: Jurnal Riset Kimia Vol. 7 No. 3 (2021): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2021.v7.i3.15598

Abstract

ZSM-5 is a synthetic zeolite which has a complex production process and is affected by operating conditions, such as temperature and time. In this study, synthesized ZSM-5 without template by hydrothermal method. An autoclave reactor was used for the hydrothermal process. The aim of this study was to investigate the effect of varied hydrothermal times of 24 and 48 hours with a hydrothermal temperature of 180oC on the characteristic of ZSM-5. The raw materials used were silica oxide and aluminum hydroxide as a source of silica and alumina. The synthesis results were characterized using X-Ray Diffraction (XRD). Based on XRD results, the best result was obtained in performed at 48 hours hydrothermal time indicating the formation of ZSM-5 material at the 22.2o position. The percentage crystallinity of the sample at the hydrothermal time of 48 hours was 51.3%.
KARAKTERISASI SILIKA DARI ABU AMPAS TEBU Tifa Paramitha; Tri Reksa Saputra; Amelia Nur Aliah; Arijan Vevayose Tarigan; Mukhtar Ghozali
KOVALEN: Jurnal Riset Kimia Vol. 5 No. 3 (2019): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (443.321 KB) | DOI: 10.22487/kovalen.2019.v5.i3.14309

Abstract

Silica has been successfully extracted from sugarcane bagasse ash by using alkali method. Extraction was carried out using sodium hydroxide solution to obtain sodium silicate solution and solid residue. Then, hydrochloric acid solution was added to sodium silicate solution until pH of solution was 7 and silica was formed. Furthermore, silica was heated in oven at 150 ˚C and calcined at 700 ˚C. Variation of this study were extraction time (1, 2 and 3 hours). The synthesized silica were characterized functional groups, acidity level, water adsorption ability and adsorption ability of Cu2+ ion. The results of FTIR analysis showed that all silica contain siloxane group. Silanol group did not appear because during calcination process occured the condensation reaction of silanol group. Other characterization results showed that silica with extraction time of 2 hours had highest acidity level, water adsorption ability and adsorption ability of Cu2+ ion, which were 6.201 mmol/gram, 86.41% and 92.55%. Keywords : bagasse ash, extraction, silica, siloxane
Pembuatan Biodiesel dengan Proses Ekstraksi Reaktif dari Ampas Perasan Kelapa Iwan Ridwan; Meylin Meylin; Rima Puspitasari; Dianty Rosirda Dewi; Mukhtar Ghozali
Fluida Vol 11 No 2 (2015): FLUIDA
Publisher : Jurusan Teknik Kimia, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v11i2.83

Abstract

Biodiesel merupakan energi terbarukan yang berasal dari minyak nabati atau minyak hewani. Pada penelitian ini pembuatan biodiesel dilakukan dengan metode ekstaksi reaktif (transesterifikasi insitu). Bahan baku yang digunakan yaitu ampas perasan kelapa dengan bilangan asam 0,5426 mg KOH/g, diameter partikel sebesar 1,12 mm. Katalis yang digunakan yaitu KOH 2%b/b pro analisis sedangkan metanol atau etanol teknis sebagai pereaksi. Transesterifikasi in situ ampas kelapa dilakukan pada temperatur reaksi 65°C dan kecepatan pengadukan 1000 rpm. Variasi variabel adalah waktu reaksi 4,5,6,7,8,9 jam dan jenis pereaksi yaitu metanol dan etanol teknis. Hasil penelitian ini menunjukan bahwa waktu reaksi dan jenis pereaksi berpengaruh terhadap yield biodiesel. Hasil penelitian menunjukan penggunaan metanol sebagai reaktan menghasilkan yield sebesar 85,97 % sedangkan etanol sebesar 53,57 %. Yield biodiesel 85,97% dengan reaktan metanol dicapai selama 8 jam. Hasil analisis biodiesel tersebut menunjukan bahwa nilai densitas, kadar air, viskositas memenuhi standar SNI Biodiesel No.7182-2012 sedangkan untuk gliserol total, dan bebas tidak memenuhi SNI.
Pengaruh Perbandingan Katalis ZSM-5 dengan Katalis Alumina terhadap Pembentukan Biofuel dengan Bahan Baku Minyak Jelantah Paqih Purnama Alam; I Wayah Adithama Nugraha; Mukhtar Ghozali; Dian Ratna Suminar
Fluida Vol 14 No 2 (2021): FLUIDA
Publisher : Jurusan Teknik Kimia, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v14i2.2868

Abstract

The average consumption rate of cooking oil in Indonesia on 2019 was 61 million litre. Because of that makes the waste cooking oil produces very high to. To prevent the consument littering the waste cooking oil, we can recycle it to be biofuel with many fraction such as biodiesel, biogasoline, and biokerosene. There are many ways to process the waste cooking oil to be, biofuel one of them is catalytic cracking. This study is induct by observe the biofuel that form from the catalytic cracking process with cooking oil as the base material using a hybrid catalyst ZSM-5/Alumina. The purpose of this study is to observe the influence of ZSM-5 and Alumina ratio as heterogenic catalyst and also the used of the catalyst frequently. The highest conversion of liquid product was produce with value 41,67% at alumina variation of 17,5%. The used of catalyst frequently will affect the decrease amount of liquid product that produce. The analysis of chemical properties using GC-MS obtained the amount of kerosene 29,917 %; gasoline 3,996 %; and diesel 10,1 %. The other product was carboxylics acids,alcohol, and unidentified compound. Keyword : Cooking oil, biofuel, ZSM-5, Alumina, catalytic cracking
THE UTILIZATION OF BLOTONG, MOLASSES, BRAN, AND COCONUT HUSK INTO COMPOST USING MOL OF STALE RICE AND Trichoderma sp. Hilda Fitria Nurul Huda; Putri Fakhirah Ramadhani; Endang Kusumawati; Mukhtar Ghozali
Jurnal Kimia Riset Vol. 7 No. 1 (2022): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v7i1.35714

Abstract

Compost is a solution for dealing with organic waste. Compost with organic material must be mixed according to its elemental composition. Protein and potassium are obtained from bran and coconut husk. Blotong contains phosphorus (P), while molasses contains total N and K2O. Local Microorganisms (MOL) of stale rice is an activator to increase the microbiological decomposition of organic matter and contains Saccharomyces cerevisiae, Bacillus cereus, and Aspergillus sp. The addition of Trichoderma sp. can speed up the composting process. The aim of the study is to determine the effect of adding Blotong and bran on the quality of compost, to obtain the most effective composition of Blotong, molasses, bran, and coconut husk for composting using MOL activator of stale rice and Trichoderma sp. according to SNI 7763:2018, and to determine the most effective composting time. The ratio of Blotong, coconut husk, bran, and molasses for the three variations were 56:10:30:4; 66:10:20:4; and 76:10:10:4 in percent as much as 6 kg calculated with Takakura method. The result of the study showed the three variations had fulfilled SNI 7763:2018 in 18 days, with the most effective composition is the 3rd variation.
Co-Authors Amelia Nur Aliah Arijan Vevayose Tarigan Dianty Rosirda Dewi Endang Kusumawati Gamaliel Tanaka Hilda Fitria Nurul Huda I Wayah Adithama Nugraha Iwan Ridwan Meylin Meylin Muhammad Misbahussalam Paqih Purnama Alam Paramitha, Tifa Putri Fakhirah Ramadhani Rima Puspitasari Suminar, Dian Ratna Tri Reksa Saputra