The issue of water-to-gas ratio in the methanol production process using coke oven gas

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Dear colleagues, our process is the methanol production method using coke oven gas, which is commonly used in Sichuan. What sets it apart from the process developed by the Second Chemical Research Institute is the use of a heat-exchange type converter: the preheated gas enters the tube section of this converter, where it reacts with the CN-23 catalyst contained therein to convert part of the methane. The resulting gas then proceeds to the second-stage furnace for conversion using pure oxygen. The gas exiting the second-stage furnace goes into the shell section of the heat-exchange converter, where it releases heat that is used to convert the coke oven gas in the tube section. The two-stage furnace is designed the same as that in Building 2. My question is: In the process used at the second plant, the water-to-gas ratio is generally between 0.8 and 0.9 (including the water vapor added to the oxygen pipeline), which is sufficient to meet the requirements for conversion, and the composition of the converted gas is relatively reasonable. For the CN-23 catalyst in the converter, a water vapor ratio of 1.123 is required. If thousands of cubic meters of water vapor are introduced along with oxygen into the second-stage furnace, the overall water vapor ratio will increase, which could lead to too high a CO2 concentration in the conversion gas and thus affect the synthesis yield. Please give me some advice.