Coal blending method for coal used in gasification furnace
A technology for gasification furnace and coal blending, which is applied in coke oven, petroleum industry and other directions, can solve the problem of large coal reserves, and achieve the effect of eliminating cost, wide application and widening application scope.
Active Publication Date: 2018-06-26
CHNA ENERGY INVESTMENT CORP LTD +1
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- Description
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- Application Information
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Problems solved by technology
Therefore, the application of coal with high ash melting point in entrained bed gasification technology is limited, and the cruel fact is that the coal reserves with high ash melting point are relatively large in my country
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0048] The HL coal was blended with different amounts of MD coal to obtain the first coal blend and the second coal blend. The coal blending amount, ash R value and flow temperature are shown in Table 7.
Embodiment 2
[0052] The HL coal was blended with different amounts of LX coal to obtain the third coal blend and the fourth coal blend. The ash R value and flow temperature are shown in Table 7.
Embodiment 3
[0056] The HL coal was blended with different amounts of MD coal and LX coal to obtain the fifth coal blend and the sixth coal blend. The coal blending amount, ash R value and flow temperature are shown in Table 7.
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The invention discloses a coal blending method for coal for a gasification furnace. The method comprises the step of carrying out coal blending by using at least two kinds of coal, so as to obtain the coal for the gasification furnace, wherein the flow temperature of coal ashes of the at least two kinds of coal for coal blending is above 1,300 DEG C, and an R value of ash content of the coal for the gasification furnace is obtained through detecting and computing; and the amount of the at least two kinds of coal for coal blending is such that the R value of the ash content of the coal for the gasification furnace is 150 to 220. According to the method, a variety of coal types with relatively high coal ash fusing temperature are applied to coal blending directly so as to obtain coal applicable to gasification furnaces, and thus, the range of application of the coal types with high ash fusing point is widened; and meanwhile, no fusing assistant is required to be added completely, then, the cost resulting from fusing assistant adding can be avoided, and more importantly, the ash content of the coal can be increased, so that the calorific value of the coal cannot be lowered, and the full proceeding of a gasification reaction in the gasification furnace is facilitated.
Description
technical field [0001] The invention relates to the field of coal combustion and utilization, in particular to a coal blending method for coal used in a gasification furnace. Background technique [0002] my country's energy structure is characterized by rich coal, short of oil, and little gas. From the analysis of my country's coal-based energy structure and the international energy market situation, it is determined that my country must base itself on national conditions and vigorously develop clean coal technology. Among them, coal gasification is the core technology for clean and efficient utilization of coal, and it is the basis for the development of coal-based bulk chemicals and liquid fuel synthesis, advanced coal gasification combined cycle power generation (IGCC), polygeneration systems, hydrogen production and other process industries. Common technologies, key technologies and leading technologies of the industry. [0003] At present, the coal gasification techn...
Claims
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IPC IPC(8): C10B57/04
CPCC10B57/04
Inventor 杨磊井云环焦洪桥罗春桃马乐波夏支文杨英
Owner CHNA ENERGY INVESTMENT CORP LTD