Method for production of 1.0-2.2MPa water gas by fixed bed gasification
A water gas, fixed bed technology, applied in fixed bed gasification, gasification process, chemical industry and other directions, can solve the problem of high production cost, achieve the effect of small workload, reduce consumption and reduce pollution
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Embodiment 1
[0029] The method for producing 2.0MPa water gas by continuous gasification of pure oxygen in a fixed bed comprises the following steps:
[0030] With anthracite small lump coal (analysis index sees table 1 below) (383kg / kNm 3 Coal gas) into the gasifier, while the pressure of 2.2MPa of oxygen (202Nm 3 / kNm 3 gas) and external source steam (330kg / kNm 3 Coal gas) and internal source steam with temperature 215℃ and pressure 2.1MPa are passed into the gasifier (the total amount of steam introduced is 633kg / kNm 3 Coal gas), control the temperature in the gasifier to 1100-1200°C, pressure 2.0MPa (pressure measurement on the top of the furnace), and react to generate crude gas with a temperature of about 470°C. After the crude gas is washed and cooled, clean water gas with a temperature of 200°C can be obtained .
[0031] like figure 1 As shown, the water gas production system in this embodiment includes a gasifier 7 , the feed port of the gasifier 7 is connected to the coal fe...
Embodiment 2
[0044] The method for producing 2.0MPa water gas by continuous gasification of pure oxygen in a fixed bed comprises the following steps:
[0045] Small particle coke (analysis index sees table 4 below) (411kg / kNm 3 Coal gas) into the gasifier, while oxygen (219Nm 3 / kNm 3 gas) and external source steam (302kg / kNm 3 coal gas) and internal source steam at a temperature of 215°C and a pressure of 2.1MPa are passed into the gasifier (the total amount of steam introduced is 602kg / kNm 3 Coal gas), control the temperature in the gasifier to 1100-1200°C, pressure 2.0MPa (pressure measurement on the top of the furnace), and react to generate crude gas with a temperature of about 480°C. After the crude gas is washed and cooled, clean water gas with a temperature of 200°C can be obtained . The water gas production system is the same as in Example 1, the water gas composition is shown in Table 5 below, and the gasification reaction consumption index is shown in Table 6 below. Furnace...
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