EFFECTIVENESS OF USING LIMESTONE AS A SYNGAS DURCH TRAPS Arif Setyo Nugroho- Suhartoyo-Iza Maulana Priyanto
Sekolah Tinggi Teknologi Warga Surakarta
Abstract
This research aims to produce environmentally friendly combustible gas using waste materials. The technology for producing combustible gas or syngas is an updraft gasification system using an air gasification agent. To produce syngas that are not polluted with tar or other impurities, a CaO trap is used. CaO is installed in the syngas outlet before the cyclone. CaO is not heated separately but uses heat from the gasification reactor. The raw materials used were rice husks and sawdust, a mixture composition of 100% rice husks, 75% rice husks and 25% sawdust, 50% rice husks and 50% sawdust, 25% rice husks and 75% sawdust and 100% sawdust. The results of this research showed that a mixture of 50% rice husk + 50% sawdust produced gas with a high H2 concentration and low CO where the highest H2 concentration that could be achieved was 32.4%, and the H2 content was 14,6% without using CaO absorbent materials. A high increase in H2 concentration was obtained by adsorbing CaO. The mechanism for CO2 adsorption by CaO was a heterogeneous reaction to produce CaCO3.
