Some common ratios for transformation and synthesis systems?
Thread Content
For example: water vapor ratio, water-carbon ratio, hydrogen-carbon ratio, etc.?
The theoretical ratios are a water vapor to hydrocarbon ratio of 0.9, a water to carbon ratio of 2.8, and a hydrogen to carbon ratio of 2.15. In production, adjustments are made based on actual conditions to achieve optimal operation.
There is no fixed value for this ratio; they are all theoretical values, and the figures provided by different design institutes vary as well. In fact, these values are determined through practical production experiences, with theoretical values serving only as a reference
The theoretical water vapor ratio is 0.9, the water-to-carbon ratio is 2.8–3.0, the hydrogen-to-carbon ratio of the fresh gas is 2.05–2.15, and the hydrogen-to-carbon ratio of the gas entering the tower is 3–6. After all, these are theoretical values; actual ratios should be determined based on actual production conditions to select appropriate values.
Reply to 4# kongzhongyun986: The actual water vapor ratio in production is 0.6, the water-to-carbon ratio is 2.7, and the hydrogen-to-carbon ratio in the fresh gas is 2.3. For reference only
Will carbon deposition occur in a converter with a water vapor ratio of 0.6?
Reply to 6#: Who knows? It will definitely happen. The carbon deposition reaction produces water, and therefore water can inhibit the occurrence of this reaction; hence, it is necessary to strictly control the water-to-carbon ratio. Under normal circumstances, when increasing the load, process steam is added first, followed by feed gas, and then fuel gas ； During load reduction, reduce the fuel gas first, then the feed gas, and finally the process steam. From this, we can also see that strictly controlling the furnace temperature is an important factor as well. Although it is an endothermic reaction, it is still necessary to determine the optimal operating conditions based on the capacity of the equipment and the conversion rate of the feed gas.