STUDY OF THE EFFECT OF COAL CHARACTERISTICS OF THE BARITO AND MEULABOH BASINS ON GASIFICATION REACTIVITY USING THERMOGRAVIMETRY - MASS SPECTROMETRY ANALYSIS

• Main Author: Maulana Putra Dewanto, Akhmad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/82798
• Institution: Institut Teknologi Bandung

Indonesia possesses abundant coal resources, but conventional coal utilization contributes to global warming and climate change. Therefore, diversification of coal utilization with more environmentally friendly methods is necessary, one of which is gasification. An essential factor in the gasification process is gasification reactivity. The characteristics of coal in Indonesia are very diverse, so studies are needed to determine their role in coal gasification reactivity. This study used two coal samples. The first sample or BB-01 came from the Barito Basin, while the second sample or BB-02 came from the Meulaboh Basin. Gasification reactivity analysis was determined using thermogravimetric - mass spectrometry analysis (TG-MS) conducted in three treatment segments. First, the samples were heated from 50°C to 900°C with a temperature increase of 10°C/minute using an argon (Ar) atmosphere. Second, the samples were kept at 900°C for 10 minutes. Third, the atmosphere was changed to 100% carbon dioxide (CO2). Coal characteristics were interpreted from the results of proximate analysis, ultimate analysis, and calorific value. Consequentially, both samples exhibit a similar classification, categorized as the Sub-bituminous B/C transition. In the gasification process, sample BB-02 had higher reactivity compared to sample BB-01. This was influenced by the higher ash content of sample BB-02. Inorganic compounds can act as catalysts in the gasification reaction. Then, H2O & CO are the dominant flammable gas products from gasification for both coal samples.