Irdoni Irdoni
Jurusan Teknik Kimia Fakultas Teknik Universitas Riau Kampus Bina Widya Simpang Baru Panam Pekanbaru 28312

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Sintesis Bio-Pelumas Dari Minyak Limbah Ikan Patin Dengan Pengaruh Kecepatan Pengadukan Dan Suhu Reaksi Amril, Ari Ridha; Irdoni, Irdoni; Nirwana, Nirwana
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Bio-lubricant synthesis from catfish waste oil is purposed to modify the useless oil to be a bio-lubricant. That function’s is to protect the engine component from wear. Esterification with ethylene glycol toward acid from catfish waste oil hydrolysis with mole ratio 1:4 for 4 hours, with variation of temperature and mixing speed. The waste extracted by rendering, oil’s boiling point is 270oC, the viscosity is 15,69 mPa s. The oil hydrolyzed at 80 oC with adding of HCl concentrated catalyst 0,1% weight/weight for 8 hours and produce the acid. That’s polymerized by adding benzoyl peroxide as 0,2% for 5 hours at 120 oC. Then, polyestherification by adding ethylene glycol in mole ratios of 1:4, for 4 hours at 120 oC, 150 oC, 1800C, and mixing speed at 150 rpm, 180 rpm, and 210 rpm. The resulting has its density, it’s 0,942 gr/m, viscosity is 61,081 mPa.s, flame point is 290,5oC, boiling point is 290 oC with yield of 66,5%. The product has a commercial standard (density is 0,92 gr/ml and viscosity is >41,1 mPa.s). The best result from this research was obtained by mole ratio 1:4 for 4 hours; the mixing speed is 150 rpm at 150oC.Keyword: bio-lubricant, oil of catfish waste
Sintesis Biopelumas Dari Minyak Biji Karet: Pengaruh Katalis NaOCH3 Dan Waktu Reaksi Terhadap Yield Biopelumas Yursal, Muhammad Habibie; Irdoni, Irdoni; Nirwana, Nirwana
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Lubricants are used in machines to reduce friction between two metal objects so that they can overcome wear on engine components. Rubber seed oil is a type of non-food oil (oil that cannot be consumed) because there is a cyanide compound (HCN) so that it can be used as raw material for making biolubricant. This research aims to synthesize biolubricant based rubber seed oil and study the effect of the percentage of addition of NaOCH3 catalysts and reaction time to yield of biolubricant produced. This research was carried out in several stages: preparation of raw materials including extraction of rubber seed oil by pressing method, then continued by degumming process to purify the oil from the gum. Next, the esterification process to reduce of free fatty acid at the oil. The final stage is the transesterification process of making biolubricant with a mole ratio of oil and 1-octanol of 1:5, reaction temperature of 170 oC, stirring speed of 200 rpm, time variation for 4 hours; 6 hours; 8 hours, and variations in the number of catalysts are 2%; 3%; 4% v/v oil. The highest yield of biolubricant produced was 82.635%. The best characteristics of biolubricant were produced at 4 hours reaction time and 4% catalyst with density values of 0.8344 gr/ml, viscosity index 217.568, pour point -9 oC, flash point 295 oC, and FTIR test to ensure the formation of ester functional groups in biolubricant.Keywords: Biolubricant, rubber seed oil, octanol, transesterification
Sintesis Biosurfaktan Dari Rubber Seed Oil Dan Trietanolamin : Pengaruh Temperatur Dan Waktu Reaksi Adraf, Annisa Afrilla; Irdoni, Irdoni; Nirwana, Nirwana
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The surfactant is a substance which has the ability to reduce surface tension, interface tension, and increase the stability of an emulsion. The Surfactant is an intermediate productwhich is widely applied in the fields of health, pharmacy, industry, and cleaning products in the household. This study makes biosurfactant from rubber seed oil. The purpose of this study is to make biosurfactants from rubber seed oil, to see the effect of temperature and time on the biosurfactant characterization produced. The preliminary treatment in this study includes preparation of raw materials, extraction of rubber seed oil by pressing method, the degumming process using phosphoric acid at temperature 90°C for 1 hour, gum separationby centrifuge. The esterification process of oil and methanol with a mole ratio of fatty acid: methanol (1:9), sulfuric acid catalyst (98%) as much as 1%(b/b) of oil, at temperature 65°C, the process is carried out until ALB < 2%. The transesterification process of methyl esterformation with a mole ratio of oil: methanol (1:9), KOH catalyst as much as 2%(b/b) of oil, at temperature 65°C for 6 hours. In the final stage, the transesterification process of methyl ester becomes esteramine with a mole ratio of methyl ester and trietanolamine (4:1), KOHcatalyst as much as 5%(b/b) of methyl ester, stirring speed 200 rpm, temperature variation 100°C; 125°C; 150°C, time variation during 2 hours; 4 hours; and 6 hours. The best characteristics of biosurfactant were produced at 100°C transesterification temperature and 6 hours transesterification time with the density of 0,906 gr/ml, the pH 9,8, the surface tension of 52 dyne/cm, the interface tension of 51,3 dyne/cm, the emulsion stability of 96,36%, the yield 88,480%, and FT-IR test to ascertain amine functional groups in biosurfactant.Keywords: Biosurfactant, rubber seed oil, transesterification, triethanolamine
Sintesis Biosurfaktan Dari Rubber Seed Oil Dan Trietanolamin : Pengaruh Rasio Mol RSOME Dan Trietanolamin Serta Jumlah Katalis KOH Wibowo, Kusnanto Eko; Irdoni, Irdoni; Nirwana, Nirwana
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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Abstract

The surfactant is a substance which has the ability to reduce surface tension, interface tension, and increase the stability of an emulsion. The Surfactant is an intermediate product which is widely applied in the fields of health, pharmacy, industry, and cleaning products in the household. This study makes biosurfactant from rubber seed oil. The purpose of this study is to make biosurfactants from rubber seed oil, to see the effect of reactant mole ratio and amount catalyst of KOH on the biosurfactant characterization produced. The preliminary treatment in this study includes preparation of raw materials, extraction of rubber seed oil by pressing method, the degumming process using phosphoric acid at temperature 90°C for 1 hour, gum separation by centrifuge. The esterification process of oil and methanol with a mole ratio of fatty acid: methanol (1:9), sulfuric acid catalyst (98%) as much as 1 % (b/b) of oil, at temperature 65°C, the process is carried out until ALB < 2%. The transesterification process of methyl ester formation with a mole ratio of oil: methanol (1:9), KOH catalyst as much as 2% (b/b) of oil, at temperature 65°C for 6 hours. In the final stage, the transesterification process of methyl ester becomes esteramine with mixing time 4 hours ,temperature reaction 150°C, stirring speed 200 rpm, mole ratio reactant TEA : RSOME variation 1:2 ; 1:3 ; 1:4, amount catalyst of KOH variation 3%, 5%, and 7%. The best characteristics of biosurfactant were produced at mole ratio reactant 1:2 with amount catalyst KOH as 3% with the density of 0,989 gr/ml, the pH 9,4, ability decrease surface tension 35,43%, ability decrease interface tension 30,43%, the emulsion stability of >95%, the yield 86,96%, and FT-IR test to ascertain amine functional groups in biosurfactant.Keywords: Biosurfactant, rubber seed oil, transesterification, triethanolamine
Pembuatan Grease Dari Minyak Biji Karet: Pengaruh Campuran LiOHNaOH Dan Rasio Base Oil:Thickening Agent Terhadap Karakteristik Grease Yolanda, Putri Gusti; Irdoni, Irdoni; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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Greases were used to reduce friction between two opposite moving metal surface. The utilized base oil could be vegetable oil and mineral oil, however mineral oil is not environmental friendly. This research objectives was to produce grease from rubber seed oiland to study LiOH-NaOH mole ratio effect and base oil mass ratio effect toward produced grease characteristic. This research pretreatment consisting few steps: raw material preparation involve rubber seed oil extraction by expression, degumming, centrifugation andthen oil characteristic test including density, viscosity and GC-MS. The process continued by LiOH-NaOH metal soap making utilizing rubber seed oil with mole variations (90:10), (80:20) and (70:20), stirring time 30 minutes, stirring speed 650 rpm and stirringtemperature is 70 oC. The last step was blending among base oil, thickening agent and additive with rasio (75:20:5)%w/w, (77,5:17,5:5)%w/w, (80:15:5)%w/w, (82,5:12,5:5)%w/w,(85:10:5)%w/w, stirring time 240 minutes, stirring speed 650 rpm and stirring temperature 120 oC. Rubber seed oil characterization results were density of 0,819 gr/ml and fatty acid content which dominated by unsaturated fatty acid namely linoleic acid 34,11% and linolenic acid 30%. The optimum ratio obtained were LiOH:NaOH ratio of 90%:10% (A1) and base oil:thickening agent:additive of (75:20:5)%w/w with penetration 228 (25 oC), dropping point 125 oC and NLGI number 3.Keywords: dropping point, grease, metal soap, penetration, rubber seed oil.
Sintesis Surfaktan Metil Ester Sulfonat Dari Palm Oil Methyl Ester Dan Natrium Metabisulfit Dengan Penambahan Katalis Kalsium Oksida Harti, Jatikta Yuni; Nirwana, Nirwana; Irdoni, Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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Surfactants (surface active agent) is a chemical compound used for reduce the surface tension of the liquid. Surfactants are divided into four groups: anionic, nonionic, cationic and amphoteric. The most widely used surfactant is an anionic surfactant which is synthesized from petroleum namely Linear Alkylbenzene sulphonate (LABS). LABS is not resistant to high salinity levels, not degradable, expensive and still imported. Methyl Ester Sulfonate is an anionic surfactant which is currently being developed. These surfactants can be produced from palm oil methyl ester. MES produced from sulfonation reaction with addition of sulfonate. Sulfonate used in this research using sodium metabisulphite. The aims synthesize surfactant Methyl Ester Sulfonate of Palm Oil Methyl Ester usingSodium Metabisulphite and a catalyst Calcium Oxide, and to study the effects of time and the mole ratio of the product produced. Palm Oil Methyl Ester obtained from PT. Cemerlang Eka Perkasa Dumai, Riau Province. Sulfonation process carried out at the time variation of 4, 5, 6 hours, the mole ratio of 1: 0,5, 1:1, 1: 1,5, temperature of 80° C and the stirring speed of 450 rpm. The density of MES (0.89490 g/cm3 - 0.89545 g/cm3), viscosity (2.0323 cP - 2.1329 cP), a pH (2,03 - 2,48), surface tension (32.60 mN/m - 33.60 mN/m), interfacial tension (30.45 mN/m - 30.94 mN/m), and the stability emulsion (59.17% - 89, 17%).Keywords: methyl ester, methyl ester sulfonate, sulfonated, surfactant
Netralisasi Limbah Cair Industri Tahu Menggunakan Metoda Elektrokoagulasi Dengan Elektroda Al-Al Dengan Variabel Waktu Proses Dan Ketebalan Plat Nurjanah, Ihda; Amri, Idral; Irdoni, Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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The tofu factory located in Pangkalan Kerinci, Pelalawan District, produces 1 m3 of liquid waste every day and are immediately disposed of without going throught the processing before release to environment. The analysis shows that the liquid waste is not in accordance with Permen LH No. 5 2014. This will deerease the oxygen level in the water. The purpose of this study was to determine reduce levels of TSS, BOD and pH with plate thicknes and prosesing time. Neutralization of liquid waste of tofu industry. The electrocoagulation method was used to reduce BOD, TSS and neutralize pH by varying the time, plate thickness. The conclusions obtained are: (1) Time variation (20, 40 and 60 minutes), and effective time is 60 minutes, current strength of 0.6 A decreases 72% BOD concentration, TSS 69.9% and pH becomes 6.01. (2) Variation in plate thickness (0.5; 1.0 and 1.5 mm), and effective plate thickness of 1 mm at 60 minutes can reduce BOD concentration 73.14%, TSS 68.78%, pH becomes 6.83. The results of the research obtained are in accordance with Permen LH No.5 of 2014.Keywords :Tofu Liquid Waste, Electrocoagulation, BOD, TSS, pH.
Karakteristik Aspal Karet Dengan Penambahan Antioksidan Trimethyl Quinoline MS, Frasucia Aquaviva; Irdoni, Irdoni; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
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Rubber asphalt modifications are used to produce asphalt roads that are more resistant to high traffic loads and extreme climate change. Natural rubber used can be latex, solid rubber or used rubber. This research aims to determine the characteristics of rubber asphalt with the addition of the antioxidant trimethyl quinoline. In this study the asphalt used is a type of asphalt pen 60/70 Pertamina. Rubber asphalt modifications are made with crepe rubber with asphalt at a mixing temperature of 160˚C for 30 minutes. Crepe Rubber ratios vary 8%, 10% and 12% and the addition of antioxidants TMQ 1%, 2% and 3%. Modification of Rubber Asphalt in accordance with the requirements of Bina Marga General Specification 2012. Rubber asphalt test results showed decreased weight loss and penetration, while mushy spots increased. Based on the results of the study the addition of 10% crepe rubber and 2% TMQ is the most optimal condition with penetration of 68.7 dmm, mushy point 55.45°C and weight loss of 0.059% which is the test result according to the standard. Keywords : asphalt rubber, crepe rubber, penetration, softening point, antioxidant
Konversi Waste Cooking Oil (WCO) Menjadi Biodiesel Menggunakan Katalis Basa Heterogen Na2O/Fe3O4 Simarmata, Hery Fiza; Saputra, Edy; Irdoni, Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Heterogeneous catalysts in transesterification has been used to biodiesel production because have many advantages. This research aims to synthesize heterogeneous base catalyst Na2O/Fe3O4 which will be used in transesterification reaction for production of biodiesel. Catalyst Na2O/Fe3O4 was synthesized from sodium hydroxide (NaOH) and iron powder using wet impregnation method. The independent variables of this research are molar ratio of WCO/methanol 1:6, 1:8, 1:10, and loading catalyst Na2O/Fe3O4 3%, 4%, 5%-w WCO. These variables are to determine the yield crude biodiesel. Reaction temperature is 60°C (±2) for 2 hours, under stirring 300 rpm. The highest yield of biodiesel is 95.45% under the transesterification methanol/WCO molar ratio 1:10, loading catalyst 3%-w.Keywords: Biodiesel, esterification, catalyst, heterogeneous, transesterification, WCO