What standards are used to precisely regulate the feed gas for hydrogen production from natural gas?
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During the heating process of the natural gas hydrogen production unit, how is the feed gas? What is the basis for precisely adjusting the optimal ratio of intake air? Is it pressure or flow rate? Or what? Is there still a linkage between the inlet volume of the feed gas and the temperature of the converter? Another issue is, during the heating and reduction process, how to adjust the optimal ratio of feed gas to nitrogen? After stopping the nitrogen, only feed gas is supplied; what is the standard for determining how much of this feed gas to introduce? What determines the water-to-carbon ratio of 20:1 and 5–7:1 in converters? What’s the standard? Check where the adjustments are made – is there also an automatic interlock? Is steam added automatically in the same amount as the raw gas fed in?
Check your process package, design documents, etc
In natural gas-based hydrogen production plants, precise control of the feed gas is achieved by regulating the volume and ratio of the incoming gas. During the heating process, the optimal ratio of intake air is usually determined based on pressure or flow rate, depending on the actual design of the device and the operational requirements. At the same time, there is a interlocking relationship between the flow rate of the feed gas and the temperature of the converter, which is generally automatically adjusted through a feedback control system. During the temperature-raising reduction process, adjusting the optimal ratio of feed gas to nitrogen is also achieved by controlling the volume of the inlet gas. After stopping the nitrogen supply, depending on actual operational needs, the inflow rate of the feed gas can be determined based on pressure or flow rate. The water-to-carbon ratios of 20:1 and 5–7:1 for the reformer are determined based on experiments and empirical experience. The specific standards and adjustment methods may vary depending on different devices and processes; generally, adjustments are made gradually during actual operation along with testing to achieve the optimal ratio. Some devices may have an automatic interlock control system that can adjust the amount of steam added based on the intake volume. .
Is the ratio of feed gas to nitrogen also automatically adjusted by the system?
Is the flow rate of the feed gas also automatically adjusted during the production process?
Check the material balance sheet of the process package, detailed design documents
It mainly depends on the relationship between the calorific value (flow rate) of the feed material and that of the fuel; in actual operation, the temperature rise is what matters； Nitrogen is gradually removed. Check the operation manual
The water-to-carbon ratios of 20:1 and 5–7:1 for the reformer are determined based on experiments and empirical experience. However, there is also a certain scientific basis for it.