Development of Geothermal Sludge Derived - Silica Catalyst for Sago Starch Hydrolysis

Abstract:

Silica based catalyst was prepared from geothermal sludge – solid waste from geothermal exploration - of Dieng Power Station, Central Java, Indonesia. The catalyst was prepared by extracting silica compound from the sludge matrix, followed by sulfonation to obtain sulfonated – solid catalyst. Catalyst sample analysis informed the catalyst was generally amorphous in structures, possessed surface area between 76 – 81 m²/g, with acidity approximately 5-6 mmol/g. Evaluation on catalyst activity was performed by applying it on sago starch hydrolysis - atmospheric pressure and 100 – 150°C (373 – 423 K) - in which more than 90 % conversion could be achieved.

• Periodical: Engineering Headway (Volume 6)
• Pages: 37-41
• DOI: https://doi.org/10.4028/p-0sg5aE
• Online since: April 2024
• Authors: O.K. Ahmad Ariq, Widiana Nurrahmadhanti Bunga*, Eka Maulana Idzati, Firman Kurniawansyah, Hikmatun Ni'mah, Himawan Tri Bayu Murti Petrus, Mahfud Mahfud
• Keywords: Catalyst, Geothermal Sludge, Hydrolysis, Sago, Silica

References

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