No abstract

No abstract

Hydrogen is one of compound much used in the chemical industry. Production process of hydrogen commonly applied in the industry is steam reforming using high temperatures. Catalyst can be used in the production of hydrogen is zeolite. Zeolites are the result of mine nonmetallic, so the availability is limited. PT Geo Dipa energy unit Dieng produce industrial waste of deposition silica and it can be used as zeolite materials. The objective of this research for preparation of catalyst from solid waste of geothermal industry with varied ratio of SiO2/Al2O3. The geothermal waste was calcined at a temperature of 1000 °C. The waste geothermal was mixed with 400 ml of Sodium Hydroxide 3M and added with Aluminum Hydroxide at 100 °C for two hours. Hydrothermal process was conducted at 300°C for five hours. The calcination of zeolite products for five hours at 700 °C. This research concludes that washed catalyst has a smaller yield than native. The greater ratio of SiO2/Al2O3 gives smaller yield. Catalysts that are washed have smaller particle sizes than without washing. Larger ratio of SiO2/Al2O3, it produces smaller particle sizes. In the analysis using the Particle Size Analyzer method, the resulting particle size is still relatively large at a micro scale.