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Contact Name
Agus Aktawan
Contact Email
agus.aktawan@che.uad.ac.id
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chemica@che.uad.ac.id
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Kota yogyakarta,
Daerah istimewa yogyakarta
INDONESIA
CHEMICA Jurnal Teknik Kimia
ISSN : 2355875X     EISSN : 23558776     DOI : -
CHEMICA Jurnal Teknik Kimia ISSN, 2355-875X (print) 2355-8776 (online) is a journal that publishes manuscripts or scientific papers in Chemical Engineering. The scope of this journal covers chemical reaction techniques, separation, optimization, process control, process system engineering, waste treatment, food and material technology. Journals are published in print and online twice a year, in June and December by Chemical Engineering Program, Faculty of Industrial Technology, Universitas Ahmad Dahlan Yogyakarta.
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Articles 10 Documents
Search results for , issue " Vol 3, No 1 (2016): Juni 2016" : 10 Documents clear
Studi Konversi Pati Ubi Kayu (Cassava Starch) menjadi Glukosa secara Enzimatik budiarti, gita indah
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.298 KB) | DOI: 10.26555/chemica.v3i1.4306

Abstract

Cassava starch has potential as raw material for production glucose and fructose in Indonesia. Glucose of cassava starch can be used as substitute of cane sugar and synthetic sweetener. Glucose of starch production process includes acid hydrolysis and enzymatic hydrolysis. Enzymatic hydrolysis is usually used because non-corrosive, low reaction temperatures and no contaminate product of hydrolysis. Therefore, the purpose of  this paper is to provide existing knowledge of steps process, factors influencing, kind of enzyme and sugar product from enzymatic hydrolisis of cassava starch .
Solid-State Anaerobic Digestion of Rice Straw for Biogas Production : A Review Shitophyta, Lukhi Mulia
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.615 KB) | DOI: 10.26555/chemica.v3i1.4308

Abstract

AbstractBiogas is one of the alternative fuel  to decrease the consumption of fossil fuel. Raw materials for biogas production can derive from a wide range of organic wastes including lignocellulosic biomass such as rice straw. Lignocellulosic biomass is abundant and renewable. Biogas production can be processed by solid-state anaerobic digestion. Many factors should be considered on SS-AD, including pretreatment of  raw material. Therefore, the purpose of this paper is to provide existing knowledge in SS-AD, factors influencing SS-AD, pretreatment of lignocellulosic biomass and identify the preceding researches on the SS-AD.Key words: biogas, solid-state anerobic digestion, lignocellulose, rice straw
Optimasi Proses Hidrolisis Vinasse Sebagai Bahan Baku Resin Polimer yang Ramah Lingkungan Saputri, Lestari Hetalesi
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.497 KB) | DOI: 10.26555/chemica.v3i1.5663

Abstract

Vinasse contains some amine, carboxyl and hydroxyl groups in it’s organic acids. These groups when being combined with other materials can be synthesized into a raw material of coating material. This research aims to break vinasse chain by hydrolysis into amino acids. Hydrolysis is carried out at 110 °C  with a residence time of 60-150 minutes (with 30-minute intervals). In addition, the comparison between the volume of vinasse and HCl is  1: 1, 1: 2, 1: 3 and 1: 4. Then the material from the hydrolysis are analyzed their groups. Quantitative analysis is required to determine the composition of vinasse that will be added in the next polimerization processing. The result showed that the optimum conditions of hydrolysis process is at 2 hours and volume HCl with the ratio of 1: 3. FTIR analysis indicated the presence of carboxyl and amines groups on hydrolyzate. The long term  goal of this research is the use of vinasse as a coating material derived from biomaterials, as well as renewable materials. It could be expected that hydrolysis under acidic conditions can be an initial step to a coating material with vinasse as a raw material base. Keywords:  Vinasse, Polimer Resin, Hydrolysis, Coating Material.
Pemisahan Hasil Cair Pirolisis Sampah Plastik Pembungkus dengan Distilasi Batch Salamah, Siti; Aktawan, Agus
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.442 KB) | DOI: 10.26555/chemica.v3i1.4990

Abstract

Plastics waste has become a major issue for environment. Since it invented in 1907 plastic has become most used component on our daily lives. Plastic has many adavantages compared to other materials. In general plastic has a low density, light, varying strength and low manufacturing cost. However, plastic cannot degraded naturally and when not used anymore it will pollute the enviroment. One of method to degrade plastic is pyrolysis. In this method plastic will degrade to hydrocarbon which can used as liquid fuel. Pyrolysis of plastic occurs at high temperature of about 400 oC under free oxygen environment and produces small moleculer weight molecules. This research was conducted to determine the composition products of pyrolysis selective plastic at 450 oC in previous research. The method which used to separate products of pyrolysis is distillation with temperature between 50 oC to 240 oC to obtain liquid fuel as products of pyrolysis plastic. The results of this research were the distillate at 170 oC, 190 oC, 200 oC, 210 oC, 220 oC and 240 oC with volume 2 mL, 4,7 mL, 2,3 mL, 2,5 mL, 5,0 mL and 4,9 mL. And the most products component of pyrolysis plastic in previous research was obtain at 190 oC, 220 oC and 240 oC.
Pemanfaatan limbah Tandan kosong kelapa Sawit Sebagai Bahan Baku Pembuatan Glukosa Pranoto, Heri
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.837 KB) | DOI: 10.26555/chemica.v3i1.4274

Abstract

AbstractThe use of increase in plantation and production of crude palm oil (CPO), will be the more industrial waste generated. Based on statistics book published by DG oil palm plantations, the 2004 acreage of palm oil is 5.2 million hectares and in 2014 had reached 10.9 million hectares with a production of 29.3 million tons of CPO. One of the biggest wastes from palm oil mill is empty fruit bunches (EFB). During the utilization of empty fruit bunches just as boiler fuel, compost and as pavers in oil palm plantations. Though EFB potential to be developed into a more useful. One of them as raw material for making glucose. The process of creating glucose from empty fruit bunches, starts from the beginning that process of delignification treatment with NaOH solution of 17.5% followed by the hydrolysis using cellulase enzymes. The testing process on the study include is kappa test, lignin, cellulose and glucose test (through enzymatic hydrolysis process). The highest glucose obtained from the hydrolysis of the pH variation is at pH 5 and hydrolysis time 28hour with levels of 1.2% and for the greatest levels of temperature variation obtained at a temperature of 35 ° C time hidolisis 28 hour with glucose levels of 1.2272% of each of dry weight (EFB).Keywords: Glucose; hydrolysis; EFB
Studi Konversi Pati Ubi Kayu (Cassava Starch) menjadi Glukosa secara Enzimatik budiarti, gita indah
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.298 KB) | DOI: 10.26555/chemica.v3i1.4306

Abstract

Cassava starch has potential as raw material for production glucose and fructose in Indonesia. Glucose of cassava starch can be used as substitute of cane sugar and synthetic sweetener. Glucose of starch production process includes acid hydrolysis and enzymatic hydrolysis. Enzymatic hydrolysis is usually used because non-corrosive, low reaction temperatures and no contaminate product of hydrolysis. Therefore, the purpose of  this paper is to provide existing knowledge of steps process, factors influencing, kind of enzyme and sugar product from enzymatic hydrolisis of cassava starch .
Solid-State Anaerobic Digestion of Rice Straw for Biogas Production : A Review Shitophyta, Lukhi Mulia
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.615 KB) | DOI: 10.26555/chemica.v3i1.4308

Abstract

AbstractBiogas is one of the alternative fuel  to decrease the consumption of fossil fuel. Raw materials for biogas production can derive from a wide range of organic wastes including lignocellulosic biomass such as rice straw. Lignocellulosic biomass is abundant and renewable. Biogas production can be processed by solid-state anaerobic digestion. Many factors should be considered on SS-AD, including pretreatment of  raw material. Therefore, the purpose of this paper is to provide existing knowledge in SS-AD, factors influencing SS-AD, pretreatment of lignocellulosic biomass and identify the preceding researches on the SS-AD.Key words: biogas, solid-state anerobic digestion, lignocellulose, rice straw
Optimasi Proses Hidrolisis Vinasse Sebagai Bahan Baku Resin Polimer yang Ramah Lingkungan Saputri, Lestari Hetalesi
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.497 KB) | DOI: 10.26555/chemica.v3i1.5663

Abstract

Vinasse contains some amine, carboxyl and hydroxyl groups in it’s organic acids. These groups when being combined with other materials can be synthesized into a raw material of coating material. This research aims to break vinasse chain by hydrolysis into amino acids. Hydrolysis is carried out at 110 °C  with a residence time of 60-150 minutes (with 30-minute intervals). In addition, the comparison between the volume of vinasse and HCl is  1: 1, 1: 2, 1: 3 and 1: 4. Then the material from the hydrolysis are analyzed their groups. Quantitative analysis is required to determine the composition of vinasse that will be added in the next polimerization processing. The result showed that the optimum conditions of hydrolysis process is at 2 hours and volume HCl with the ratio of 1: 3. FTIR analysis indicated the presence of carboxyl and amines groups on hydrolyzate. The long term  goal of this research is the use of vinasse as a coating material derived from biomaterials, as well as renewable materials. It could be expected that hydrolysis under acidic conditions can be an initial step to a coating material with vinasse as a raw material base. Keywords:  Vinasse, Polimer Resin, Hydrolysis, Coating Material.
Pemisahan Hasil Cair Pirolisis Sampah Plastik Pembungkus dengan Distilasi Batch Salamah, Siti; Aktawan, Agus
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.442 KB) | DOI: 10.26555/chemica.v3i1.4990

Abstract

Plastics waste has become a major issue for environment. Since it invented in 1907 plastic has become most used component on our daily lives. Plastic has many adavantages compared to other materials. In general plastic has a low density, light, varying strength and low manufacturing cost. However, plastic cannot degraded naturally and when not used anymore it will pollute the enviroment. One of method to degrade plastic is pyrolysis. In this method plastic will degrade to hydrocarbon which can used as liquid fuel. Pyrolysis of plastic occurs at high temperature of about 400 oC under free oxygen environment and produces small moleculer weight molecules. This research was conducted to determine the composition products of pyrolysis selective plastic at 450 oC in previous research. The method which used to separate products of pyrolysis is distillation with temperature between 50 oC to 240 oC to obtain liquid fuel as products of pyrolysis plastic. The results of this research were the distillate at 170 oC, 190 oC, 200 oC, 210 oC, 220 oC and 240 oC with volume 2 mL, 4,7 mL, 2,3 mL, 2,5 mL, 5,0 mL and 4,9 mL. And the most products component of pyrolysis plastic in previous research was obtain at 190 oC, 220 oC and 240 oC.
Pemanfaatan limbah Tandan kosong kelapa Sawit Sebagai Bahan Baku Pembuatan Glukosa Pranoto, Heri
CHEMICA: Jurnal Teknik Kimia Vol 3, No 1 (2016): Juni 2016
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.837 KB) | DOI: 10.26555/chemica.v3i1.4274

Abstract

AbstractThe use of increase in plantation and production of crude palm oil (CPO), will be the more industrial waste generated. Based on statistics book published by DG oil palm plantations, the 2004 acreage of palm oil is 5.2 million hectares and in 2014 had reached 10.9 million hectares with a production of 29.3 million tons of CPO. One of the biggest wastes from palm oil mill is empty fruit bunches (EFB). During the utilization of empty fruit bunches just as boiler fuel, compost and as pavers in oil palm plantations. Though EFB potential to be developed into a more useful. One of them as raw material for making glucose. The process of creating glucose from empty fruit bunches, starts from the beginning that process of delignification treatment with NaOH solution of 17.5% followed by the hydrolysis using cellulase enzymes. The testing process on the study include is kappa test, lignin, cellulose and glucose test (through enzymatic hydrolysis process). The highest glucose obtained from the hydrolysis of the pH variation is at pH 5 and hydrolysis time 28hour with levels of 1.2% and for the greatest levels of temperature variation obtained at a temperature of 35 ° C time hidolisis 28 hour with glucose levels of 1.2272% of each of dry weight (EFB).Keywords: Glucose; hydrolysis; EFB

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