cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Dr. Martha Aznury
Contact Email
Kinetika@polsri.ac.id
Phone
-
Journal Mail Official
Kinetika@polsri.ac.id
Editorial Address
https://jurnal.polsri.ac.id/index.php/kimia/issue/view/266/showToc
Location
Kota palembang,
Sumatera selatan
INDONESIA
Kinetika
Published by Politeknik Negeri Sriwijaya
ISSN : 16939050     EISSN : 26231417     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology
Artikel ilmiah yang dipublikasikan merupakan hasil-hasil riset/penelitian dalam bidang Teknik Kimia, Bioteknologi, Energi dan Lingkungan, Agroindustri dan pangan, serta Petrokimia.
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 214 Documents
 3   4   5   6   7 
PENGARUH RASIO CAIRAN PEMASAK (AA CHARGE) PADA PROSES PEMBUATAN PULP DARI KAYU SENGON (ALBIZIA FALCATARIA) TERHADAP KUALITAS PULP Supraptiah, Endang; Ningsih, Aisyah Suci; ., Sofiah
KINETIKA Vol. 5 No. 2 (2014): KINETIKA 01112014
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.364 KB)

Abstract

Sengon wood (Albizia falcataria) is chosen as an alternative raw material for the manufacture of pulp has physical and chemical characteristic that meet the standards of raw material for pulp. The most important factors that influence the process of the kraft pulping is the ratio of the cooking liquid (AA charge) which serves to degrade and dissolve so easy to separate lignin from cellulose, while still protecting carbohydrates from degradation so that the resulting yield and good physical strengt. The study began with the preparation of raw materials, cooking by using a variable charge AA 14%, 16%, 18%, 20% and 22%, pulp washing and sheet formation, as well as the analysis of the quality of the pulp. Cooking liquid ratio will affect the yield and quality of pulp, including kappa number, viscosity and brightness. The low use of cooking liquid causes the higher lignin content in pulp and produce wood that is not mature, so the higher the yield, kappa number and viscosity, but lower brightness. While conversely, the higher the cooking liquid use causes more fiber degraded.
Rancang Bangun Alat Karbonisasi Dengan Tinjauan Kinerja Alat Karbonisasi Nugraha, Ridho
KINETIKA Vol 1, No 1 (2013): TEKNIK ENERGI 01012013
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7.385 KB)

Abstract

Carbonization technology is one way to utilize waste biomass into alternative fuels where the carbonization process is still in a very traditional stage takes a lot of time and produce little. Carbonization convert solid biomass feedstock into charcoal. Carbonization equipment types used in this design is the electric carbonization. Carbonization tool designed feedstock capacity 3 kg with a power of 3.6 kW to use fire bricks type c-2 and using ceramic fiber insulation that has a high insulating value. This study aims to review the performance of the tool and determine the efficiency of the carbonization heat produced by the carbonization equipment and the efficiency of heat during the process of carbonization of coconut shell. Results of this study indicate, the value of thermal efficiency of 60.484%, while the coconut shell raw material of the highest heat efficiency is 61.73% and 33.65% efficiency terandah is the amount of heat that is lost versus heat input. This tool has a value carbonization free air convection at a high enough temperature at the outer wall due to high tool temperature than surrounding environment, it is used less because insulator thickness to contain the propagation of conduction from furnace. Carbonization chamber is capable of producing charcoal quality standards in the combustion temperature 6500 oC for 1hr burning with as much raw material which results rendemennya 1 kg of 50% of the raw material.
PEMANFAATAN LIMBAH AMPAS TEBU DENGAN MENGGUNAKAN HCl SEBAGAI AKTIVATOR UNTUK MENGURANGI DAMPAK LINGKUNGAN DARI LIMBAH INDUSTRI TAHU Hatina, Surya
KINETIKA Vol. 6 No. 2 (2015): KINETIKA 01072015
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4438.585 KB)

Abstract

The research aims to determine the effectiveness of active carbon from sugarcane bagasse with activator substance of  HCl  in  decrease  the  value  of  COD  and  TSS  and  than  in    increase  the  value  of  DO  and  pH  in  tofu  liquid waste.The optimum condition of decrease the value of COD and TSS and also increase the value of DO and PH in tofu liquid waste is circulation time at 12 hours of fixed bed reaktor. The results of  the research show that decrease the value of COD from 123,7 mg/L to 41,6 mg/L or 66,37 %,  decrease the value of TSS from 335 mg/L to 103,8 mg/L or 69,1 %,  increase the value of  DO from 1,86 mg/L to 7,6 mg/L or 75,52 % and increase the value of pH from 3,53 to 4,66.
PRODUCTION OF HYDROGEN GAS FROM DRINK WASTE WITH ELECTROLYSIS WATER AND ALUMINIUM CORROSION PROCESS AS FUEL WELDING Erlinawati, Erlinawati
KINETIKA Vol. 8 No. 1 (2017): KINETIKA 01032017
Publisher : Politeknik Negeri Sriwijaya

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

Abstract

Hydrogen fuel is one of the alternatives. The existence of constraints in hydrogen-boundary feedstocks in nature causes us to think how to create hydrogen gas. The discovery of aluminum cans of waste which can be a source of hydrogen gas when mixed with acid or base is one of the most calculated means for producing sufficient quantities of hydrogen gas. Used aluminum contained in Coca-Cola, Green sands and Sprite cans as materials corrosion process with variation of electrolyte concentration 0,6 M, 0,8 M and 1 M. The result of research and data processing performed show that by comparing the three types of aluminum waste cans with different levels of produced hydrogen gas, it is found that more and more high concentrations of aluminum are used to produce more hydrogen gas. The largest volume of hydrogen gas is obtained from aluminum coca cola waste with a concentration of 1 M KOH of 0.175 liters (175 ml). The resulting hydrogen gas is then utilized as welding fuel with variations of flow rate and metal welding. The highest Specific Fuel Consumption is obtained when the steel welding is 6579.6186 Joule H2 / cm steel with H2 7L / min flow rate and within 100s the highest welding length is 1.6cm in aluminum welding with a 7L / min hydrogen rate
PEMANFAATAN MINYAK GORENG BEKAS PADA PEMBUATANBIODIESEL MELALUI TRANESTERIFIKASI DENGAN MENGGUNAKAN NAOH SEBAGAI KATALIS Chodijah, Siti; Harmansyah, Adi Putra
KINETIKA Vol. 1 No. 1 (2011): KINETIKA 01032011
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5.053 KB)

Abstract

Dalam proses penggorengan minyak goreng berfungsi sebagai medium penghantar panas, penambah rasa gurih, menambah nilai gizi dan kalori dalam bahan makanan. Lemak yang paling baik untuk digunakan adalah oleo stearin atau lemak nabati dihidrogenasi dengan titik cair 35 – 400C seperti, minyak kelapa, kacang tanah dan minyak sawit. Minyak yang termasuk golongan setengah mengering (semi drying oil) seperti minyak biji kapas, minyak kedelai, minyak jagung dan minyak biji bunga matahari tidak dapat digunakan sebagai minyak goreng. Hal ini disebabkan karena minyak tersebut jika terjadi kontak dengan udara suhu tinggi akan cepat terjadinya oksidasi sehingga berbau tengik. Pemanasan minyak secara berulang – ulang pada suhu tinggi dan waktu yang cukup lama akan menghasilkan senyawa polimer yang berbentuk padat dalam minyak. Minyak yang telah rusak tidak hanya mengakibatkan kerusakan nilai gizi tetapi juga merusak tekstur flavor dari bahan pangan yang digoreng. (Saefudin. A, UGM 2005).
RANCANG BANGUN PROTOTIPE PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) TURBIN PELTON Syarif, Aida
KINETIKA Vol. 8 No. 2 (2017): KINETIKA 01072017
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (482.22 KB)

Abstract

Hydro power utilization as the power plant has been becoming one of the potential solutions to be applied in overcoming limited electricity supply for society in rural areas. Its utilization has been already applied by using waterwheel or water turbine using head potential energy (waterfall) or kinetic energy (river flow). The design of the Micro Hydro Power Plant (PLTMH) equipment in the laboratory scale is analyzed by some factors , they are valve opener, debit and number of blades. At the influencing of the water flow rate on the rotameter and the effect of the maximum of the nozzle valve opener is actually obtained the best generator performance 7.35% at Overshot Horizontal flow with full aperture 100% and water flow rate at 4.5 GPM. Meanwhile, the best number of blades using is at 16 blades which is influences turbine rotation and electrical power generated is 573,9 rpm and 14,7 Watt.
APLIKASI KATALIS NaOH PADA PROSES TRANS ESTERIFIKASI KOPRA MENJADI BIODIESEL A, Husaini; M.A, Jaksen
KINETIKA Vol 2, No 2 (2011): KINETIKA 01072011
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6.124 KB)

Abstract

Proses konversi minyak kopra (kelapa) menjadi biodiesel dilakukan dalam bejana tertutup dengan menggunakan metanol dan bantuan katalis berupa NaOH pada tahap esterifikasi dan H2SO4 pada tahap transestrifikasi. Faktor yang mempengaruhi konversi minyak kopra menjadi biodiesel adalah jumlah penambahan metanol dan katalis basa yang digunakan. Secara kuantitatif semakin besar jumlah metanol yang digunakan, (15%, 20%,dan 25%) maka semakin tinggi volume biodieselnya. Hal ini terlihat pada penggunaan metanol   25 % menghasilkan volume terbanyak yaitu 82, 87 dan 84 ml.Penggunaan NaOH optimum yaitu 0,75%, dilihat dari menghasilkan volume biodiesel terbanyak, yaitu 87, 84 dan 80 ml.
RANCANG BANGUN ALAT PENGERING TIPE TRAY DENGAN MEDIA UDARA PANAS DITINJAU DARI LAMA WAKTU PENGERINGAN TERHADAP EXERGI PADA ALAT HEAT EXCHANGER Mahardhika, Lintang Putri; Lestari, Sutini Pujiastuti; Bow, Yohandri
KINETIKA Vol. 7 No. 1 (2016): KINETIKA 01032016
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (507.849 KB)

Abstract

Drying is one way to remove or eliminate some of the water of a substance by evaporating most of the water contained through evaporation heat energy. The purpose of this research was to determine the length of time the drying of the moisture content of crackers and aware of any changes exergy of steam and changes exergy of air in the heat exchanger tools during the drying process. Exergy can be defined as the maximum employment potential in the form of material or energy that interacts with the environment. The longer the drying time then changes exergy of steam and changes exergy of air generated increased, this is due to the heat lost from the boiler so that it can affect the heat that will be up to the drying chamber. The more amount of the change exergy of steam and changes exergy of air, the lower the content of water in crackers. The water content in the crackers meet the standards of ISO 2713.1: 2009. At the time of 6 hours produces water content of 12.20%, at a time of 6.5 hours to produce 11.64% moisture content, at the time of 7 hours to produce 11.29% moisture content.
UTILIZATION OF PLASTIC WASTE INTO LIQUID FUELS Lestari, Sutini Pujiastuti
KINETIKA Vol 3, No 3 (2012): KINETIKA 01112012
Publisher : Teknik Kimia Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8.577 KB)

Abstract

The production of plastic waste in Indonesia in increasing from year to year. Along with that, then the unused plastic waste in the environment increases. Thgis problem is greated because of the plasic waste can not decompose easily, if only just left. Therefore, efforts are needed to convert plastic waste into liquid fuel that is by catalytic pyrolisis. The volume of piroligneuos liquid (obtained) was  mearsuredand it?s physical properties were analyzed. The analys include distillation ASTM, spgr, and 0API. From the data obtained showed that pyrolysis catalysts are able to increase the pyrolysis process by lowering the temperature and time of decomposition, so the maximum liquid fuel was obtained at 0,024 weight fraction of catalyst, and in the temperature range below 3500C obtained result could reach more than 50%. The optimum temperature of pyrolyzing plastic waste into liquid fuel was 3290C, and the weight fraction of bentonite catalyst was 0,024. from the analysis of ASTM (D-86) there were there component of pyroligneus liquid, there are gasoline, kerosene, and diesel. From the result of analizing showed the pyroligneous liquid had spgr was 0,7702 near with spgr of gasoline with octane number 91 among 0,715-0,780. 0API result was 52,2185 or near with 0API of gasoline.
PENYERAPAN LOGAM Pb DENGAN MENGGUNAKAN KARBON AKTIF DARI CANGKANG KEMIRI SEBAGAI ADSORBEN Supraptiah, Endang; Ningsih, Aisyah Suci; ., Fatria
KINETIKA Vol. 5 No. 1 (2014): KINETIKA 01032014
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4035.719 KB)

Abstract

Candlenut shell is a waste which usually burned, stacked or discarded,which are unfavorable to environment. This is condition be motivated to produced commercial product from this candlenut shells waste as activated carbon and aswell as solving as environment problems.This study aimed is to obtain the optimum conditions of hydrochloric acid activator to quality activated carbon and Pb metal adsorption capacity. This activated carbon has two variation process there are carbonization process used temperature 500oC for 1 hour and the activation process with variation concentration of hydrochloric acid there are 0,2M, 0,4M, 0,6M, 0,8M and 1M for 24 hours. The product of this research isshowing the best quality activated carbon from candlenut shells which has best characteristic or fit to SNI 06-3730-95 such as to Inherent Moisture rate 8,54-10,56%, ash content 1,10-2,48%, volatile matter 17,57-20,63% and fixed carbon 67,81-71,42%. The application of activated carbon from candlenut shell can reduce the Pb metal concentration from 3 ppm to 0 ppm with activator concentration 0,4M for contact time of 1 hour with adsorption content is 100% and adsorption capacity of activated carbon from candlenut shell using hydrochloric acid as adsorbent Pb metal is 0,15 mg/g.

Page 5 of 22 | Total Record : 214

 3   4   5   6   7 

Filter by Year

2011 2022


Reset
Filter By Issues
All Issue Vol. 13 No. 03 (2022): KINETIKA 01112022 Vol. 13 No. 02 (2022): KINETIKA 01072022 Vol. 13 No. 01 (2022): KINETIKA 01032022 Vol. 12 No. 3 (2021): KINETIKA 01112021 Vol. 12 No. 2 (2021): KINETIKA 01072021 Vol. 12 No. 1 (2021): KINETIKA 01032021 Vol. 11 No. 3 (2020): KINETIKA 01112020 Vol. 11 No. 2 (2020): KINETIKA 01072020 Vol. 11 No. 1 (2020): KINETIKA 01032020 Vol. 10 No. 3 (2019): KINETIKA 01112019 Vol. 10 No. 2 (2019): KINETIKA 01072019 Vol. 10 No. 1 (2019): KINETIKA 01032019 Vol. 9 No. 3 (2018): KINETIKA 01112018 Vol. 9 No. 2 (2018): KINETIKA 01072018 Vol. 9 No. 1 (2018): KINETIKA 01032018 Vol. 8 No. 3 (2017): KINETIKA 01112017 Vol. 8 No. 2 (2017): KINETIKA 01072017 Vol. 8 No. 1 (2017): KINETIKA 01032017 Vol. 7 No. 3 (2016): KINETIKA 01112016 Vol. 7 No. 2 (2016): KINETIKA 01072016 Vol. 7 No. 1 (2016): KINETIKA 01032016 Vol. 6 No. 3 (2015): KINETIKA 01112015 Vol. 6 No. 2 (2015): KINETIKA 01072015 Vol. 5 No. 2 (2014): KINETIKA 01112014 Vol. 5 No. 1 (2014): KINETIKA 01032014 Vol. 4 No. 3 (2013): Kinetika 01112013 Vol 4, No 2 (2013): KINETIKA 01072013 Vol. 4 No. 1 (2013): KINETIKA 01032013 Vol 1, No 1 (2013): TEKNIK ENERGI 01012013 Vol 3, No 3 (2012): KINETIKA 01112012 Vol 2, No 2 (2011): KINETIKA 01072011 Vol. 1 No. 1 (2011): KINETIKA 01032011 More Issue