Gasifier and operating method of gasifier
A technology of gasifier and oxidant, applied in fixed bed gasification and other directions
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Embodiment 1
[0197] Next, the following reference Figure 7 to Figure 13 Another embodiment (Example 1) of the gasifier 102 according to this embodiment will be described.
[0198] Figure 7 to Figure 13 It is a schematic diagram schematically showing another embodiment of the gasifier 102 according to this embodiment. Figure 7 to Figure 13 Gasifiers 1021A to 1021G according to the first to seventh embodiments of Example 1 are shown, respectively. in, Figure 7 to Figure 13 In , illustration of the control device 102g and the like is omitted.
[0199] exist Figure 7 to Figure 13 In the shown gasifiers 1021A to 1021G, for substantially figure 2 The structure of the gasifier 102 shown is the same and the same reference numerals are attached to the same structure, and the description thereof is omitted.
no. 1 approach
[0201] Figure 7 The gasification furnace 1021A according to the first embodiment shown is a gasification furnace in which char R is deposited to form a char layer δ (specifically, a char deposition layer), and the generated fuel gas G flows upward. gasifiers (so-called fixed-bed up-suction gasifiers).
[0202] For the gasifier 1021A, in figure 2 In the gasifier 102 shown, the raw material introduction part 102a is provided above the uppermost part δxa of the assumed char layer δx, and the oxidant introduction part 102d is provided above the uppermost part δxa of the assumed char layer δx , and lower than the opening 102ah of the raw material introduction part 102a.
[0203] In addition, the opening 102dh of the oxidizing agent introduction portion 102d is formed such that the introduction direction of the oxidizing agent H is along the horizontal direction or upward (for example, obliquely upward) compared to the horizontal direction. The fuel gas outflow portion 102e is ...
no. 2 approach
[0209] for Figure 8 In the gasification furnace 1021B according to the second embodiment shown, Figure 7 In addition to the shown gasification furnace 1021A, at least one (in this example, both) of an endothermic reaction agent introduction part 102i and a heat capacity agent introduction part 102j is provided.
[0210] The gasification furnace 1021B further includes: an endothermic reactant introduction part 102i for introducing an endothermic reactant M; and a heat capacity agent introduction part 102j for a heat capacity agent N to be introduced. The gasification furnace 1021B may include either one of the endothermic reaction agent introduction part 102i and the heat capacity agent introduction part 102j.
[0211] At least one (in this example, both) of the endothermic reaction agent introduction part 102i and the heat capacity agent introduction part 102j is provided at a position facing the imaginary char layer δx of the furnace 102b. In this example, both the endoth...
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