One Question per Day: Methanol Technology Exchange Edition 20180525
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Learn from the advanced practices of the *Brothers section; there are rewards for correct answers – any answer earns a reward, allowing us to grow and mature through these Q&A sessions. Short answer: What substances are components of ash? What is the effect of ash content on the gasification reaction? The main components of ash are: Fe2O3, CaO, MgO, NaO, K2O, SiO2, Al2O3, TiO2. 1. Ash is a harmful substance in the gasification reaction; it does not participate in chemical reactions ； 2. Melting the ash requires heat, increasing specific oxygen consumption and specific coal consumption ； 3. Slag will erode and corrode the bricks on the fire-facing side of the gasification furnace, reducing the service life of these refractory bricks ； The gasifier design takes this characteristic fully into account, using ash slag to protect the gasifier, employing slag to counteract slag. 4. It increases the thermal load of the system; a high ash content raises the water-to-gas ratio in the syngas, affecting subsequent processes. This also increases the load on the ash treatment system, impacts the quality of the water in the system, and may even lead to blockages in pipes and valves.
The main components of ash are: Fe2O3, CaO, MgO, NaO, K2O, SiO2, Al2O3, TiO2. 1. Ash is a harmful substance in the gasification reaction; it does not participate in chemical reactions ； 2. Melting the ash requires heat, increasing specific oxygen consumption and specific coal consumption ； 3. Slag will erode and corrode the bricks on the fire-facing side of the gasification furnace, reducing the service life of these refractory bricks ； The gasifier design takes this characteristic fully into account, using ash slag to protect the gasifier, employing slag to counteract slag. 4. It increases the thermal load of the system; a high ash content raises the water-to-gas ratio in the syngas, affecting subsequent processes. This also increases the load on the ash treatment system, impacts the quality of the water in the system, and may even lead to blockages in pipes and valves.
What substances make up ash? What is the effect of ash content on the gasification reaction? The main components of ash are: Fe2O3, CaO, MgO, NaO, K2O, SiO2, Al2O3, TiO2. 1. Ash is a harmful substance in the gasification reaction; it does not participate in chemical reactions ； 2. Melting the ash requires heat, increasing specific oxygen consumption and specific coal consumption ； 3. Slag will erode and corrode the bricks on the fire-facing side of the gasification furnace, reducing the service life of these refractory bricks ； The gasifier design takes this characteristic fully into account, using ash slag to protect the gasifier, employing slag to counteract slag. 4. It increases the thermal load of the system; a high ash content raises the water-to-gas ratio in the syngas, affecting subsequent processes. This also increases the load on the ash treatment system, impacts the quality of the water in the system, and may even lead to blockages in pipes and valves