CHEMICA: Jurnal Teknik Kimia最新文献_第6页

Gasifikasi Biomassa Serbuk Gergaji Kayu Mahoni (Swietenia Mahagoni) untuk Menghasilkan Bahan Bakar Gas sebagai Sumber Energi Terbarukan 桃花心木锯末(Swietenia Mahagoni)的生物质量多样化，为可再生能源提供气体燃料

CHEMICA: Jurnal Teknik Kimia Pub Date : 2019-05-14 DOI: 10.26555/CHEMICA.V5I2.13046

Astri Nurwidayati, Putri Ayu Sulastri, Destya Ardiyati, Agus Aktawan

{"title":"Gasifikasi Biomassa Serbuk Gergaji Kayu Mahoni (Swietenia Mahagoni) untuk Menghasilkan Bahan Bakar Gas sebagai Sumber Energi Terbarukan","authors":"Astri Nurwidayati, Putri Ayu Sulastri, Destya Ardiyati, Agus Aktawan","doi":"10.26555/CHEMICA.V5I2.13046","DOIUrl":"https://doi.org/10.26555/CHEMICA.V5I2.13046","url":null,"abstract":"Energy cannot be separated from human life. Increased energy needs for human life that are contradictory to existing fossil fuel sources can cause an energy crisis. Biomass is an alternative energy source that is environmentally friendly, economical and renewable. Biomass energy is derived from plants such as wood, rice hulls, corn head, etc. The process of converting biomass into energy can be done in several ways. They are combustion, pyrolysis, and gasification. Gasification is a technology for converting solid materials into syngas (CO, H 2 , and CH 4 ) which can be used as a fuel. One of the gasifiers that have been developed is a downdraft system. The solid material we use in this study is a mahogany wood powder which has a cellulose content of up to 46.8%. Through this research, we can find out the effect of the variable of raw materials weight towards the time of flame, the quality of the fire, and the amount of gas produced. The gas produced was tested visually by lighting the fire and instrumentally tested using a tool called Chromatography Gas to determine the composition of the gas. The biggest yield syngas is 70,71% with the 18,000 seconds gas release time on the variable of mahogany wood powder weight of 3500 grams. The highest CH 4 and CO Gas concentrations were 1,868% and 15.902% on the variable of 3,500 gram mahogany powder weight. While the highest concentration of H2 gas is 20.965% produced with the variable of 2,500 gram mahogany powder weight. The results of this study indicate that the more feed in the gasifier, the greater the number and composition of syngas and the longer the gas release time.","PeriodicalId":118085,"journal":{"name":"CHEMICA: Jurnal Teknik Kimia","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127610390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Simulasi Optimasi Reactive Distillation untuk Membuat Bioaditif (Triasetin) dari Gliserol dan Asam Asetat dengan Katalis Asam Sulfat Menggunakan Software Aspen Plus

CHEMICA: Jurnal Teknik Kimia Pub Date : 2019-05-10 DOI: 10.26555/CHEMICA.V5I2.13000

Chici Wardiani Prasongko, Fitria Ramdani, Zahrul Mufrodi

{"title":"Simulasi Optimasi Reactive Distillation untuk Membuat Bioaditif (Triasetin) dari Gliserol dan Asam Asetat dengan Katalis Asam Sulfat Menggunakan Software Aspen Plus","authors":"Chici Wardiani Prasongko, Fitria Ramdani, Zahrul Mufrodi","doi":"10.26555/CHEMICA.V5I2.13000","DOIUrl":"https://doi.org/10.26555/CHEMICA.V5I2.13000","url":null,"abstract":"Biodiesel is one product to avoid the energy crisis in the front mass. Oil from plants such as oil palm, coconut, jatropha, or used cooking oil produces glycerol as a by-product of about 10 wt% of biodiesel products. The excess amount of glycerol must be converted into high-value products. Because if glycerol is not processed properly, the price of glycerol in the market will drop and it will become a waste that can pollute the environment. One of the derivatives of glycerol which has a high value is triacetin which is a good bio-additive as an anti-knock substance in vehicles. From this study, the synthesis of triacetin is from glycerol and acetic acid using sulfuric acid as a catalyst using the Reactive Distillation (RD) process. RD can be used as a reaction place and at the same time as a product refining place. RD can separate water with acetic acid as a distillate product for about 75% on the bottom product. The bottom product of RD will produce triacetin and other derivatives which will be separated again using the second column to obtain high purity triacetin. The purpose of this study is to simulate using Aspen Plus software to model the optimization of RD with a continuous system. The feed capacity of 96% glycerol was 4336.4550 kg/hour and 98% acetate acid was 8659.79 kg/hour in the liquid phase with the help of a sulfuric acid catalyst of 115.4592 kg/hour. The feed enters continuously into RD with a temperature of 115 °C and a pressure of 1 atm. The simulation results show that triacetin products can reach 99% as many as 10150.8561 kg/hour with glycerol conversion of 99.8% and 30 stages in RD. Besides that, the simulation results can also show the flow rate of each stage and the dimensions of RD.","PeriodicalId":118085,"journal":{"name":"CHEMICA: Jurnal Teknik Kimia","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122292705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Uji Aktivitas Adsoben Karbon Aktif Tempurung Kelapa Termodifikasi dengan Active Site Fe2O3 椰子壳活性Adsoben活性试验与活性位点2 - 3进行了改装

CHEMICA: Jurnal Teknik Kimia Pub Date : 2019-04-16 DOI: 10.26555/CHEMICA.V5I2.12185

Shinta Amelia, Zahrul Mufrodi

{"title":"Uji Aktivitas Adsoben Karbon Aktif Tempurung Kelapa Termodifikasi dengan Active Site Fe2O3","authors":"Shinta Amelia, Zahrul Mufrodi","doi":"10.26555/CHEMICA.V5I2.12185","DOIUrl":"https://doi.org/10.26555/CHEMICA.V5I2.12185","url":null,"abstract":"The use of dyes in the textile industry has a negative impact, namely water pollution if the waste is discharged directly into the river or not treated properly. Liquid waste from the textile industry generally still contains dyes that are harmful to living things and the environment. In this study the dye adsorption method was used by using modified activated carbon from the coconut shell with the addition of the active site Fe 2 O 3 . Characterization and activity testing of iron / porous oxide activated carbon adsorbent will be carried out. The type of porous activated carbon used is coconut shell carbon with micropore characters. The stages of this study consisted of the impregnation process of iron oxide on porous carbon, the methylene blue adsorption process and the characterization of the resulting adsorbent. Based on the research that has been done, it can be concluded that the adsorption of Fe 2 O 3 / coconut shell activated carbon is very effectively applied for the absorption of dye wastewater. The adsorption capacity of methylene blue increased with increasing concentrations of loading of active sites of Fe and the percentage of adsorption capacity in the 180 minute reaction was 89.8% with the loading of iron oxide / coconut shell adsorbent 2%. In addition, from the results of the adsorbent activity test with variations in the mass addition of the adsorbent it can be concluded that the mass increase of the adsorbent significantly affected the yield of blue methylene adsorption.","PeriodicalId":118085,"journal":{"name":"CHEMICA: Jurnal Teknik Kimia","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133955081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Produksi Bio-Oil dari Rumput Gajah dengan Fast Pyrolysis menggunakan Circulating Fluidized Bed Reactor (CFBr) dengan Kapasitas 45 Kg/H

CHEMICA: Jurnal Teknik Kimia Pub Date : 2019-03-22 DOI: 10.26555/CHEMICA.V5I2.12484

Ilham Mufandi, Wasakron Treedet, Piyapong Singbua, Ratchaphon Suntivarakorn

引用次数: 4

Pembuatan Kolom Monolit Mixed-Mode untuk Pemisahan Fenol dalam Kromatografi Cair Sistem Kapiler

CHEMICA: Jurnal Teknik Kimia Pub Date : 2018-12-31 DOI: 10.26555/CHEMICA.V5I2.12282

Aster Rahayu, Joni Aldilla Fajri, Lee Wah Lim, T. Takeuchi

引用次数: 1

Pengolahan Slurry Sampah melalui Microbial Fuel Cells di Pasar Giwangan Yogyakarta

CHEMICA: Jurnal Teknik Kimia Pub Date : 2018-12-14 DOI: 10.26555/CHEMICA.V5I1.11868

Ilham Mufandi, Isti Nur Azizah, A. Efendi, Zahrul Mufrodi

{"title":"Pengolahan Slurry Sampah melalui Microbial Fuel Cells di Pasar Giwangan Yogyakarta","authors":"Ilham Mufandi, Isti Nur Azizah, A. Efendi, Zahrul Mufrodi","doi":"10.26555/CHEMICA.V5I1.11868","DOIUrl":"https://doi.org/10.26555/CHEMICA.V5I1.11868","url":null,"abstract":"The vegetable waste is one of the biomass types that it can produce electrical energy. This article focused on electrical production of vegetable waste using microbial fuel cells (MFCS) MFCs is the primary type of the bioelectrochemical system (BECs) that to replaces the biomass to electrical energy spontaneously by activity metabolism of the microorganism. The objectives of this work were to investigate the process of electrical production from Chinese cabbage and the combination of the materials to produce the electrical energy. The experiment was carried out in a laboratory-sall such as mini reactor MFCs, Chinese cabbage as the material of vegetable waste and EM4 as the fermentation. Sample combination was consist of two parts that the first part was used 1 kg Chinese cabbage, 2 liter water and 20 ml EM4. The second part was used 2 kg Chinese cabbage, 1 liter water and 20 ml EM4. The result showed that the electrical voltage in part 1 at 0.362 V and pH at 6 was lower than the electrical voltage in part 2 at 0.724 V and pH at 7. Declining electric energy is influenced by pH as microorganisms living place and the formation process of attached media at the electrode.","PeriodicalId":118085,"journal":{"name":"CHEMICA: Jurnal Teknik Kimia","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123325340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pengaruh Total Solid dan Perbandingan Bahan Baku dengan Inokulum terhadap Produksi Biogas dari Jerami Jagung 完全有效的影响和相对于接种玉米秸秆产生的沼气的接种

CHEMICA: Jurnal Teknik Kimia Pub Date : 2018-10-18 DOI: 10.26555/CHEMICA.V5I1.9891

Gita Indah Budiarti, Lukhi Mulia Shytophyta, Dika Fajariyanto, Y. Nugroho

引用次数: 0

Identifikasi Pengaruh Umur Simpan dan Antioksidan Terhadap Kandungan Karbohidrat dan Kadar Air Pada Mie Tapioka Basah 确定保质期和抗氧化剂对湿木薯面碳水化合物和含水率的影响

CHEMICA: Jurnal Teknik Kimia Pub Date : 2018-06-30 DOI: 10.26555/CHEMICA.V5I1.11837

Titisari Juwitaningtyas, Amalya Nurul Khairi

{"title":"Identifikasi Pengaruh Umur Simpan dan Antioksidan Terhadap Kandungan Karbohidrat dan Kadar Air Pada Mie Tapioka Basah","authors":"Titisari Juwitaningtyas, Amalya Nurul Khairi","doi":"10.26555/CHEMICA.V5I1.11837","DOIUrl":"https://doi.org/10.26555/CHEMICA.V5I1.11837","url":null,"abstract":"Wet tapioca noodles are a typical food in one of the regions in DIY Province. Traditional processing results in a limited shelf life. Gambir ( Uncaria gambir roxb ) plants are popular plants to be processed into herbal medicines and nutritious plants. Based on research, gambir has the ability as an antimicrobial and natural antioxidant because of the content of catechins in it. This study aims to identify the effectiveness of using gambir extract as a natural antioxidant in wet tapioca noodle samples. The methodology in this study was carried out by mixing 7% gambir extract into 50 grams of wet tapioca noodles. The finished sample is then treated with storage for 0 days, 3 days, and 5 days. The result of the analysis are in 0 day storage, sample contains antioxidant 80,624 ic50, carbodydrate 41,048 mg, and water 58,575 %. In 3 days storage, sample contains antioxidant 91,048 ic50, carbohydrate 45,744 mg, and water 53,415 %. In 5 days storage, sample contains 94,876 ic50, carbohydrate 60,547 mg, and water 39,100 %. Based on the tests conducted, it appears that there is an increase in the number of antioxidants during the storage period. This is accompanied by increasing carbohydrate content and decreasing water content. Decreasing water content will have an impact on the stability of microbial activity so that it extends shelf life. These results provide the conclusion that gambir extract can provide a longer shelf life effect.","PeriodicalId":118085,"journal":{"name":"CHEMICA: Jurnal Teknik Kimia","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115584144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Karakter Edible Film Ulva lactuca-kitosan sebagai Pengemas Bumbu Mi Instan 可编辑的电影Ulva lactular -kitosan作为方便面调料

CHEMICA: Jurnal Teknik Kimia Pub Date : 2018-06-30 DOI: 10.26555/CHEMICA.V5I1.9683

S. Distantina, Nuril Nasdhofa Ayuni, V. S. Y. Sarjani

引用次数: 0