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Idral Amri
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Jbchees@eng.unri.ac.id
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Jbchees@eng.unri.ac.id
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Graduate Program of Chemical Engineering Faculty of Engineering Universitas Riau, Pekanbaru, Indonesia, 28293
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INDONESIA
Journal of Bioprocess Chemical and Environmental Engineering Science
Published by Universitas Riau
ISSN : 27221334     EISSN : 27211894     DOI : -
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Journal of Chemical, Bioprocess and Environmental Engineering Science merupakan Open Access Journal yang menerbitkan naskah dengan topik-topik sebagai berikut: 1) Bioprocess Engineering, 2) Catalytic Reaction Engineering Science, 3) Fundamental of Chemical Engineering and Applied Industry, 4) Industrial Chemical Engineering, 5) Material and Engineering Sciences, 6) Process and Control Engineering, 7) Energy Sciences and Technology, 8) Polymer, Oleo and Petrochemical Technology, 9) Membrane Sciences and Technology, 10) Separation and Purification Technology, 11) Water/Waste Water treatment, 12) Environmental and Safety Technology, 13) Food Processing and Engineering Sciences
Arjuna Subject : Teknik Kimia (semua kategori) - Fluid Flow and Transfer Processes
Articles 5 Documents
 1 
Search results for , issue "Vol 2 No 1 (2021): Journal of Bioprocess, Chemical, and Environmental Engineering" : 5 Documents clear
DESAIN REAKTOR TRANSESTERIFIKASI PADA PRAPERANCANGAN PABRIK METIL ESTER DARI CPO (CRUDE PALM OIL) Idral Amri; Tifanny Frimacia
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 2 No 1 (2021): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.745 KB) | DOI: 10.31258/jbchees.2.1.25-31

Abstract

Along with the development of the era, the need for fuel oil is increasing. The development of research and the use of diesel motors in industry will not stop just because of the depletion of fossil fuels. The search for alternative fuels as a substitute for diesel continues to be carried out in addition to dealing with the problems of the global energy and environmental crisis as well as helping to develop automotive technology as a work of human culture. Methyl ester is a biofuel that can be used to power diesel engines. The availability of fuel oil derived from petroleum is running low and the price is increasing so that alternative fuel sources are needed. One of the substitutes for conventional fuels from petroleum is vegetable oil. Methyl ester is produced using a transesterification reaction by changing the triglycerides which are reacted with one of the alcohol compounds, namely methanol to become methyl ester, and a production capacity of 250,000 tons / year is obtained. The main design tool is the CSTR (Continuous Flow Stirred-Tank Reactor) reactor which is used as a place for the transesterification reaction between triglycerides and methanol to produce methyl ester (main product) and glycerol (by-product). The operating temperature used is 333.15K. Based on the calculation results, the reactor volume is 57.28 m3, the reactor diameter (OD) is 168 in m with torispherical flanged and dished head and skirt support.
Pengolahan Limbah Cair Industri Minyak Sawit Menggunakan Reaktor Listrik Plat Kolom Secara Kontinu serta dengan Penambahan PAC Dwi Widyaningsih; Idral Amri; Desi Heltina
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 2 No 1 (2021): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.194 KB) | DOI: 10.31258/jbchees.2.1.32-45

Abstract

Palm oil industrial waste contains various dissolved compounds in the form of short fibers, hemicellulose, and their derivatives, proteins, free organic acids, a mixture of minerals and organic pigments such as anthocyanins, carotenes, polyphenols, lignins and tannins. Organic compounds in this waste will cause problems such as an increase in TSS, COD values which can pollute the environment. The electrocoagulation method has the potential to reduce TSS, TDS, COD content and neutralize pH. The purpose of this study was to determine the effect and optimum conditions of the electrocoagulation process with variations in flow rate, voltage, spacing between plates and the addition of poly aluminum chloride (PAC) coagulants to decrease TSS, COD and pH parameters so that they meet the quality standards of waste in Permen LH. No. 5/2014. The method used is a continuous electrocoagulation process using an aluminum catalyst and the addition of PAC. The variables used in this study were the stress variable (24; 26; 28 V) and the variable flow rate velocity (0.3; 1,2; 2.5 L / min) and the variation of the spacing between the plates (2, 3, 4 cm). The results of this study found that the optimum conditions were obtained at a voltage of 28 volts and a flow rate of 0.3, and a distance between the plates of 2 cm and the addition of 400 ppm PAC with a percentage of TSS removal of 92.093% from 2150 mg / L to 170 mg / L, and a decrease in COD of 85.343% from 1310 mg / L to 192 mg / L. The results obtained show that it is in accordance with the standards of the Ministry of Environment and Forestry Regulation No.5 of 2014.
Optimasi Kondisi Proses Sintesis Biodiesel Berbasis Reaksi Esterifikasi Palm Fatty Acid Distillate Dengan Katalis Cu-Hidroksiapatit Dari Limbah Tulang Ikan Muhammad Rahman; Yelmida Aziz; Panca Setia Utama
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 2 No 1 (2021): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.586 KB) | DOI: 10.31258/jbchees.2.1.12-24

Abstract

Biodiesel is an alternative fuel to a diesel engine that can replace or reduce the use of petroleum diesel. PFAD (Palm Fatty Acid Distillate) is a by-product of physical refining of crude palm oil products and is contained of free fatty acid (FFA) more than 85 wt.%. Esterification is a chemical reaction used to produce biodiesel from feedstocks with high FFA. Hydroxyapatite derived from waste fish bones has been effectively utilized as a support for preparation of the heterogeneous copper acid catalyst. The Copper- Hydroxyapatite catalyst has been prepared through wet-impregnation.This study intends to produce biodiesel with Cu- Hydroxyapatite catalyst derived from fishbone waste in esterification of PFAD and methanol. Esterification reaction parameters were varied to obtain the maximum yield of biodiesel. Optimization of esterification reaction parameters such as methanol to PFAD ratio, catalyst loading, and reaction temperature was carried out by Response Surface Methodology-Central Composite Design (RSM-CCD). The optimum yield obtained using regression models were found to be reaction temperature 62oC, catalyst to PFAD weight 1,82 wt.%, and PFAD to methanol molar ratio 1:8,28. The reaction under the optimum condition predicted at 92,52% of biodiesel yield.
Upgrading Karakteristik Biopelet Tandan Kosong Sawit Dengan Penambahan Oil Sludge Sebagai Co-Firing Tengku Mukhlis; Idral Amri; Zuchra Helwani
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 2 No 1 (2021): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.913 KB) | DOI: 10.31258/jbchees.2.1.1-11

Abstract

Biopelet is one of the alternative fuels converted from biomass. Biomass which has great potential to be converted into biopelet is Empty Fruit Bunches (EFB). Such considerations make researchers interested in conducting a study on the use of EFB as an alternative fuel in the form of biopelets. In this research, we used torefaction and densification processes and the addition of oil sludge as a co-firing to increase the mass and energy density which had been a problem with the nature of EFB. The research procedure started from the raw material preparation stage, the EFB and oil sludge torefaction process and the bioepelet manufacturing stage. For fixed variables, the raw material size (EFB) is ± 15 mm , the raw material ratio is 70:30 (EFB: Oil Sludge), the torefaction temperature is 275 °C, the size of the biopelet diameter is 20 mm (ISO 17225). For 20 mesh particles, the N2 flow rate was 50 ml / minute, for the changing variables were the torefaction detention time of 30, 45 and 60 minutes, the pressing pressure was 30, 40 and 50 bar.The results showed that there was an effect of torefaction detention time which was directly proportional to the increase in proximate characteristics and calorific value of biopelets with the best results of 3.35% moisture content, 8.66% ash content, 9.50% volatile content, 78.49 %, fixed carbon content, and the calorific value of 4597.76 cal / g under the conditions of 60 minutes of torefaction detention time. There is an effect of pressing pressure which is directly proportional to the increase in the mechanical properties of the biopelet with the best results of density 1.148 gr / cm3, compressive strength 16.86 bar, and porosity of biopelet 13.33% under pressure conditions of 50 bar. The effect of adding oil Sludge as co-firing resulted in the calorific value of the biopelet being lower than the calorific value of EFB. This is because the calorific value of oil sludge is lower than the calorific value of EFB.
Pengaruh Jarak Elektroda Dan Kuat Arus Pada Pengolahan Air Gambut Dengan Proses Elektrokoagulasi Secara Kontinu Albi Fadhlah Ramadhan; Idral Amri; Drastinawati Drastinawati
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 2 No 1 (2021): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.991 KB) | DOI: 10.31258/jbchees.2.1.46-55

Abstract

Peat water is surface water that inundates an area, formed from a pile of organic material for a long time. Peat water can cause skin irritation and metabolic disorders. The purpose of this study was to determine the application of the electrocoagulation method can be used to neutralize pH, and reduce levels of TSS and Fe in peat water treatment and also to determine the effect of changes in electrode spacing and current strength on decreasing TSS and Fe levels and neutralizing the pH of peat water. The parameters tested include pH, TSS (Total Suspended Solid), and Fe. The electrocoagulation process uses electric power which flows in the direction through the electrodes. Electrocoagulation reactor paired with a cable connected to the power supply and then connected to an electric current with a variation of current strength (1.0; 1.4; and 1.8 A) and electrode distance variations (0.5; 0.75; 1 inch). The results of this study giving the optimum conditions obtained at a strong current of 1.8 A and 0,75 inch electrode distance with an increase in pH from 3.5 to 6.8, a decrease in TSS from 128 to 36 mg / L, a decrease in Fe of 78.9% from 2.405 mg / L to 0.506 mg / L.

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