Article Per Year (5 Year)
p-Index From 2020 - 2025
0.92
P-Index
This Author published in this journals
All Journal Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Zultiniar, Zultiniar
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Mechanical Engineering

Published : 17 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 17 Documents
Search

 1   2 
Proses absorpsi Gas H2S Menggunakan Metildietanolamin W, Ririen; Bahruddin, Bahruddin; Zultiniar, Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

H2S  in the oil and gas industry is undesirable because it can lead to corrosion of pipes and equipment production. The purpose of this research is to study the effect of distance and the injection  of absorbent flow rate.  Absorption processes carried out continuously with free variables absorbent flow rate of 40 ml/min, 60 ml/min, 80 ml/min and 100 ml/min, with a distance of injection of 110 m, 140 m , and 170 m. The results  of  absorption  H2S was measured by using a gas detector tube system.  H2S absorption process using methyldiethanolamine  as  absorbent  with  flow rate variation of 40 ml/min is 170 ppm, absorbent flow rate of 60 ml/min is 150 ppm,  absorbent flow rate of 80 ml  /min and 100 ml/min which is 125 ppm . The concentration of H2S  for  the distance variation injection of 110 m that is 175 ppm , a distance of 140 m the injection of 150 ppm and at a distance of 170 m the injection of 125 ppm . The optimum conditions of hydrogen sulfide gas absorption process using methyldiethanolamine occurs at a flow rate of 80 ml/min at a distance of 170 m injection of H2S  that can absorb as much as 58 % . The results showed that the greater the flow rate of the absorbent and absorbent injection of the longer distance, the greater the absorption of H2S gas that occurs . Keyword: absorption, corrosion, H2S,  methyldiethanolamine
Pembuatan Bioetanol Dari Ampas Sagu Menggunakan Proses Hidrolisis Dan Fermentasi Menggunakan Asam Sulfat Sebagai Katalis Dirgantara, Doni Ari; Chairul, Chairul; Zultiniar, Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Bioethanol is one of the alternative energy substitutes for petroleum. the wasted of sago can be used for bioethanol production. The main component of sago is used for the production of bioethanol is lignocellulose which consist of cellulose, hemicellulose and lignin. Ethanol is made by hydrolisiys and fermentation with the help of an acid catalyst and saccharomyces cerevisiae. This study aims to exploit the potential contained in sago waste as a producer of bioethanol by using the hydrolysis process method acid and time of the hydrolysis process, knowing the amount of sugar content resulting from the acid hydrolysis process and the time of the hydrolysis process, Knowing the ethanol content formed from the time variation in the fermentation process. The variables used are sulfuric acid concentration, hydrolysis time and also the time when fermentation. this research starts with the pre treatment of sago pulp, then hidrolysis with, with variation 1n, 2n, 3n in 145 degree during 20 minutes, 30 minutes, minutes, 40 minutes and 50 minutes. Then the results of hydrolysis fermented using sacchaomces cerevisiae. The fermentation process lasted for 24 hours, 48 hours 72 hours, 96 hours, and 120 hours. The results showed that the largest sugar concentration was obtained during concentration of H2SO4 3 N with time 50 minutes amounting to 25,08 g/L the greatest bioethanol content and levels are obtained from the fermentation during 96 hours is 4,751 g/L or 15 %. Keywords : bioethanol, fermentation, hydrolisis, sago pulp, pre-treatment
Pemanfaatan Ampas Sagu Untuk Produksi Bioetanol Hendra, Alfino; Chairul, Chairul; Zultiniar, Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Sago waste is a lignocellulosic material that can be used as a raw material for making bioethanol. The lignin content in lignocellulose can inhibit the rate of saccharification by blocking access to cellulase enzymes in cellulose. The pretreatment stage is the initial stage of the conversion process of lignocellulose to bioethanol with the aim of reducing lignin levels in lignocellulose. The next steps in the conversion of lignocellulosic material to bioethanol are saccharification and fermentation. In this study, the pretreatment stage was carried out using 10% NaOH solution at a 4 bar pressure reactor and a temperature of 140 oC, while the saccharification and fermentation stages were carried out simultaneously (SSF) with the help of cellulase enzymes and yeast Saccharomyces cerevisiae at temperature conditions of 30 oC and pH 5. The research was carried out by varying the ratio of sago waste with NaOH solution and the time of the pretreatment process. The ratio of sago waste and the solvent used were 1:5, 1:6, and 1:7, while the processing time started from 20 minutes, 30 minutes and 40 minutes.. The results of the initial treatment stage were then continued with SSF for 0 hours, 24 hours, 48 hours, and 72 hours with the highest bioethanol content of 12% at 72 hours. Keyword: Bioethanol, lignocellulose, pretreatment, sago solid waste, SSF
Pemanfaatan Bionanomaterial Chitosan Sebagai Adsorben Untuk Penyisihan Parameter Zat Organik Pada Pengolahan Air Gambut Hasibuan, Nur Anisyah Handayani; Elystia, Shintia; Zultiniar, Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Nanomaterials are nano-sized materials that can be formed from several its forming compounds. This research uses chitosan as an adsorbent in peat water treatment located in Rimbo Panjang Village, Kampar. Chitosan obtained from shrimp shell waste, with several stages of the process first carried out, such as deproitenation, demineralization and deacetylization. Furthermore, the process of making chitosan bionanomaterial using magnetic stirer speed of 1200 rpm and added 2% acetic acid and 200 ml Tripolyphospate (1mg/mL). The solution is then filtered and dried using an oven at 120o C for 2 hours. The independent variable peat water treatment used in this study were adsorbent masses of 1,3,5 and 7 grams and stirring time of 30, 60, and 90 minutes. The final concentration obtained in the from of reduction in removal of organic matter at 5,878 mg/L with a percentage value of 98,67% at the mass of the 5 gram adsorbent with 30 minutes.Keywords: Bionanomaterial Chitosan, Adsorption. Peat Water.
MODEL KESETIMBANGAN PADA ADSORPSI ION KADMIUM MENGGUNAKAN HIDROKSIAPATIT DARI KULIT KERANG DARAH Yenti, Silvia Reni; Fadli, Ahmad; Drastinawati, Drastinawati; Zultiniar, Zultiniar; Nisa, Aidina Fahrun
Jurnal Sains dan Teknologi Vol 17, No 1 (2018): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (22.439 KB) | DOI: 10.31258/jst.v17.n1.p9-15

Abstract

Pencemaran logam berat kadmium (Cd2+) di perairan mengakibatkan kerusakan yang besar bagi kehidupan manusia. Salah satu cara untuk menghilangkan dan mengurangi logam cadmium adalah menggunakan proses adsorpsi. Larutan kadmium (Cd2+) 3mg/L sebanyak 200 mL ditambahkan HAp 0,5 gr dan diaduk dengan kecepatan 100, 200 dan 300 rpm pada suhu 30°C, 40°C dan 50°C. Larutan kemudian dianalisa menggunakan Atomic Adsorption Spectroscopy (AAS) untuk mengetahui konsentrasi kadmium. Semakin besar suhu adsorpsi maka kapasitas penjerapan adsorben HAp (Qe) semakin kecil. Semakin besar kecepatan pengadukan adsorpsi, maka semakin besar pula kapasitas penjerapan adsorben HAp (Qe). Mekanisme adsorpsi logam kadmium (Cd2+) menggunakan HAp memiliki kecocokan dengan model isotherm Freundlich yang mewakili adsorpsi fisika dengan kapasitas panas adsorpsi (ΔH) sebesar -1,665304 kcal/mol.K dan perubahan entropi (ΔS) didapatkan sebesar 15,76 J/mol.K.
Pembuatan Briket Dari Kulit Kacang Tanah Dan Kulit Kopi Dengan Getah Damar Sebagai Perekat Manalu, Bonita Restana; Irianty, Rozanna Sri; Zultiniar, Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Bio-charcoal briquettes are one of the ingredients of fuel that derived from biomass. Biomass is one of the sources of energy that can be replaces. One of biomass that is used in this research is coffee skin and peanut skin. The research is aimed to utilize waste biomass as material fuel alternatives and determine the best comparison of coffee skin and peanut skin. This research is carried out a comparison between coffee skin and peanut skin with a ratio is 1:1, 1:2, 1:3, 2:1 and 3:1 with the amount of damar resin 20% w/w. tests were carried out the water content, ash content, volatile matter, heat value, and rate of combustion. The result of the analysis are obtained: the lowest water content for the ratio 3:1 at 12.85%, the lowest ash content at the ratio 2:1 at 7.07%, the lowest volatile matter for the ratio 1:3 at 48.26%, the highest heating value for the ratio 3:1 at 7151.32 cal/g and the best rate of combustion for the ratio 1:1 at 0.1716 g/min. Keywords: Briquette Charcoal, Coffee Skin, Damar, Peanut Skin
Sintetis Pembuatan Briket Menggunakan Limbah Buangan Pulp Tanuwijaya, Michael; Amri, Idral; Zultiniar, Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Indonesia is one of the largest paper producing and exporting countries in the world. Along with the increase in paper production causes an increase in solid waste originating from the reject pulp. The reject pulp has the potential to produce energy because it still contains high cellulose content of around 85.16% which is able to support the provision of usable and environmentally friendly fuel. The purpose of this study was to use of reject pulp as fuel in the form of briquettes by mixing coconut shell charcoal as cofiring and CPO sludge as an adhesive. Briquettes will mixed with a variety of composition of reject pulp and coconut shell charcoal cofiring from 80%: 0%, 20%: 60%, 30%: 50%, 50%: 30%, 60%: 20%, and 0%: 80% , for adhesive 20% while 90%: 0%, 30%: 60%, 40%: 50%, 50%: 40%, 60%: 30%, 70%: 20% and 90%: 0% for adhesive 10 % of the total briquette weight which is ± 2 grams. The briquettes that have been form must qualified to the quality standards of SNI for wood charcoal (No.1 / 6235/2000) where after being tested only a few compositions have qualified the standards, for the reject pulp composition and coconut shell charcoal cofiring from 0:90, 30:60 40:50 with an adhesive composition of 10% and a composition of 0:80, 20:60, 30:50 with an adhesive composition of 20%, with the highest calorific value of 5274 cal/g and ash content of 2.65%. Key words: Briquettes, Coconut shell charcoal, CPO sludge, Reject pulp,
Co-Authors Ahmad Fadli Alpina, Clara Shinta Asri Amri, Idral Amun Amri Bahar, Helmi Bahruddin Bahruddin Blesvid, Bloomy Chairul Chairul Dirgantara, Doni Ari Drastinawati Drastinawati, Drastinawati Dwifirman, Widya Edy Saputra Elystia, Shintia Fajril Akbar Hasibuan, Nur Anisyah Handayani Hendra, Alfino Maihendra, Maihendra Malindo, Muhammad Eri Manalu, Bonita Restana Muhammad Yahya Mukhlis Khoirudin, Mukhlis Nisa, Aidina Fahrun Rozanna Sri Irianty Ryan Prakarsa Putra Silvia Reni Yenti Tanuwijaya, Michael W, Ririen Yelmida Azis Zikri, Ahmed