According to reports, the expert group of the China Petroleum and Chemical Industry Association organized an appraisal of the new process on the 12th and successfully accepted the new process. The expert group proposed to increase the promotion of the technology industry and promote the application of the coal gasification process equipment as soon as possible.
The successful development of the process technology solved the problem of high concentration of carbon monoxide (CO), the prone to methanation side reactions when the raw gas was changed, and greatly reduced the emission of exhaust gas, achieving a major breakthrough. This technology has opened up a new way for smooth production, energy saving and environmental protection for the production of synthetic ammonia from pulverized coal gasification.
The process makes full use of the low water content of the raw material gas in Shell's waste pan process. All of them use the independently developed QDB-04 catalyst to control the depth and bed of the first reactor shift reaction by controlling the water/gas ratio in the process gas. The hot spot temperature of the layer realizes the conversion of the high concentration CO feed gas under low water/gas ratio process conditions without the occurrence of methanation side reactions, and is innovative.
After more than one year of industrial application, the monitoring results show that compared with the high water/air ratio multi-stage conversion process, the first stage water/gas ratio of the process does not exceed 0.3, and the maximum water/gas ratio of each stage does not exceed 0.5. The hot spot temperature does not exceed 400°C, the operating conditions are mild, the conversion device runs smoothly, no methanation side reactions occur, the steam consumption can be greatly reduced and the equipment investment is saved, significant economic and social benefits are achieved, and the comprehensive technology is at the international advanced level. .
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