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All Journal World Chemical Engineering Journal
Suhendi, Endang
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sultan Ageng Tirtayasa
Chemical Engineering, Chemistry & Bioengineering

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The Effect of K2CO3 and Ca(OH)2 Catalysts on The Yield of Syngas Products and Tar Production on Tobacco Waste Gasification with Downdraft Gasifier Type Suhendi, Endang; Dahlin, Julianus Marthin; Almundzir, Yahya
World Chemical Engineering Journal VOLUME 1 NO. 5 DECEMBER 2017
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v1i5.2635

Abstract

Nowadays tobacco waste from cigarette production has not been managed properly, only used as fuel on direct combustion process that caused air pollution. To resolve it, indirect combustion method or gasification can be used. Gasification is a thermochemical process that converts solid fuel into a gas capable of fuel known as Synthesis Gas by a combustion process using limited oxygen. Fuel gases and synthesis gases produced by the gasification is used as power generation, heating, chemical products, etc. However, gasification processes also generated condensable organic compounds, so called “tar”. As the processing method, using the catalytic tar decomposition has been widely studied. The purposes of this study is to determine the effect of catalysts K2CO3 and Ca(OH)2 on increasing the composition of synthesis gas produced and decreasing the amount of tar produced. As for the steps of this research are preparation of raw materials, gasification process and analyzing the composition of the syngas. The experimental results show that alkali metal compound (K2CO3) and alkaline earth metal compound (Ca(OH)2) have a catalytic effect to decompose tar contents, to enhance gaseous production. The largest syngas composition produced by the use of Ca(OH)2 catalyst with H2= 10,20 %v; CO = 21,81 %v; dan CH4 = 2,02 %v. On tar reduction, Ca(OH)2 catalyst was better than K2CO3 catalyst with tar production reduced by 34,04%v.
Characteristics of Refuse-Derived Fuel (RDF) at The Waste Processing Facility (WPF) of The Faculty of Engineering, Untirta Suhendi, Endang; Heriyanto, Heri; Jundika, Paerus; Rizkiantika, Natasya
World Chemical Engineering Journal VOLUME 7 NO.1 JUNE 2023
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v7i1.20614

Abstract

Landfill in Cilegon City has an impact on the environment, so processing is needed, one of which is converting waste into RDF fuel. The conversion of waste into RDF provides benefits by reducing the amount of waste sent to landfills and utilizing renewable energy as fuel. The composition of mixed materials in RDF has potential characteristics that affect the quality of the resulting RDF. The study objective is to study the effect of the composition of a mixture waste of organic (leaves) and LDPE plastic on the characteristics of RDF. The research was conducted with composition ratios of organic waste (leaves) and LDPE plastic waste at 95:5, 90:10, 85:15, and 80:20 (% wt.). The results showed that the optimal RDF product was produced with a composition of 85:15 and with the addition of 10% starch. These results indicate the characteristics of RDF, including an ash content of 14.681%, moisture content of 11.215%, volatile matter of 54.465%, fixed carbon of 19.469%, calorific value of 4598.017%, bulk density of 0.706 g/cm3, and compressive strength of 6.69 kg/cm2. It has the potential to be a good alternative for using RDF as fuel in boilers.
Co-Authors Almundzir, Yahya Dahlin, Julianus Marthin Heri Heriyanto Jundika, Paerus Rizkiantika, Natasya