I’ve made a table comparing space furnaces; I hope experts can give their feedback

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Comparison Table of 750t/d and 1500t/d Processes for Spacecraft Furnaces
Name: 750t/d, 1500t/d
Remarks:
Production capacity: 11 units (no backup furnace), 5 units (no backup furnace); based on 1.8 million tons per year.
Gas production volume (per unit): 45,000 NM3/h, 101,700 NM3/h.
Effective gas (CO + H2): 86%, 90%.
Oxygen consumption ratio: 330, 330.
Coal consumption ratio: 600, 600.
Electricity consumption per ton of methanol (kWh/t): 350, 309.
Steam consumption per ton of methanol (kg/t): 1,800, 1,800.
Oxygen consumption per ton of methanol (NM3/t): 742, 742.
Coal consumption per ton of methanol (kg/t): 1,350, 1,350.
Cost per ton of methanol (yuan): 1,920, 1,020.
Personnel required for gasification process: 200, 120.
Investment (in hundred million yuan): 5, 3.5.
Water consumption per ton of methanol: 14, 12. (Electricity cost: 0.45 yuan/kWh; oxygen cost: 0.4 yuan/NM3)
Some notes on the comparison of spacecraft furnaces:
1. The data is generally accurate and was calculated based on information provided by Anhui Linquan Chemical Plant and spacecraft furnace manufacturers. 2. For normal production, an additional backup furnace is required; that is, 12 furnaces with a capacity of 750 t/d are needed, and 6 furnaces with a capacity of 1500 t/d are required to ensure production stability. This entails increased investment and other costs. 3. The 750t/d gasifier is valued at 10 million yuan; adding in the scrubber tower, hopper system, burner cooling water system, slag breaker, slag tank, 12 operation pumps, as well as pipes and valves, the total cost amounts to around 50 million yuan. 4. The 1500t/d gasifier, based on the information provided by the aerospace furnace manufacturer, does not include other costs such as technology transfer fees. Fewer devices in operation. 5. Water and electricity consumption are calculated based on the water and electricity used by the operating equipment; any additional consumption incurred during the operation of extra equipment is taken into account. For a water consumption of 750 t/d, the calculation is done on the basis of the average consumption per ton of methanol, whereas for a water consumption of over 1500 t/d, the same formula is applied. 6. For 11 units operating in gasification mode, neither the operation nor management is very scientific; this makes equipment and process accidents more likely, thereby affecting production stability. The 1500t/d gasification furnace is relatively better in this regard. 7. The data provided for the 1500t/d gasification furnace of the Spacecraft type can be extended to apply to 1700t/d units, with better load regulation as well. Although there is no record of successful operation of such large-scale industrial units, based on the operational data of 750t/d furnaces, it is no problem to operate a 1500t/d furnace.