Publications by authors named "Rika Wijiyanti"
Recently, natural gas (mostly methane) is frequently used as fuel, while hydrogen is a promising renewable energy source. However, each gas produced contains impurity gases. As a result, membrane separation is required.
View Article and Find Full Text PDFArticle Synopsis
- - Hydrogen is emerging as a promising clean energy source, with membrane technology being explored for its separation and production, specifically with new carbon membranes that incorporate zeolite composites to enhance gas affinity.
- - The study involved synthesizing a zeolite composite carbon (ZCC) using an impregnation method, followed by pyrolysis at various heating rates, revealing a significant impact of heating rate on the membrane's pore structure and gas separation performance.
- - Results showed that the highest gas permeability was achieved at a heating rate of 3 °C/min and a temperature of 373 K, with thermodynamic analysis indicating that the transport of gases through the membrane involves adsorption and activated surface diffusion, especially influenced by temperature.
This study aims to investigate the adsorption-desorption of CO on a micro-mesoporous zeolite-Y-templated carbon (ZTC) at various temperatures. ZTC was synthesized sucrose impregnation, carbonization, and template removal. The adsorption-desorption of CO on ZTC was performed using the gravimetric method.
View Article and Find Full Text PDF