Basic Knowledge of Gasification 2018-10-19 (Short Answer Questions)
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What is the recommended slurry concentration for the gasification process? What are the effects of being too high or too low on slurry transportation, storage, and the gasification process? Answer: The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases.
Answer: The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases.
The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases.
The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases.
60~65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases. Thanks for the explanation!
The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases.
The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases.
The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Increased oxygen consumption
The theoretical slurry concentration for the water-coal slurry gasification process is 60–65%. A high slurry concentration helps improve gasification efficiency, but at such concentrations the slurry has high viscosity and poor flow properties, which hinders pumping. It also tends to settle and separate during storage. When the slurry concentration is too low, it facilitates the transportation by the slurry pump and the storage of the slurry; however, the effective component that enters the gasifier (i.e., the dry coal) decreases, the calorific value drops, and the evaporation of water consumes a large amount of oxygen, thereby reducing the gasification efficiency. Oxygen consumption increases.