Overview of methanol reformer
The factors to be considered in the heat preservation of methanol conversion furnace are furnace type, furnace temperature, heating mode and furnace atmosphere. Furnace type mainly has top burning square box type, side burning double chamber type, small cylinder type, etc. Equipment fuel is generally natural gas plus casting gas, clean, sulfur content is not higher than 50 ppm; The radiant section is operated under micro negative pressure ( - 5 ~ - 10 mmh2o ) and the maximum design temperature of the hot surface is 1260 ℃. Weak reducing flue gas atmosphere in the furnace.
Partition heat insulation structure of methanol conversion furnace
End and side insulation of convection section in methanol conversion furnace;
Lining thickness: 180 - 200 mm
Lining structure: 160 mm 1260 ℃ high purity ceramic fiber module + backing 20 - 40 mm 1260 ℃ grade ordinary ceramic fiber blanket
Anchoring material: s304 stainless steel
End and side upper heat preservation of convection section of methanol conversion furnace;
External insulation thickness: 30 mm
Lining structure: 30 mm 800 ℃ soluble ceramic fiber blanket
Bottom heat preservation of convection section in methanol conversion furnace;
Lining thickness: 180 - 200 mm
Lining structure: 160 mm 1260 ℃ high purity ceramic fiber module + backing 20 - 40 mm 1260 ℃ ordinary ceramic fiber blanket
Methanol conversion furnace outer wall temperature requirements:
Under the design condition that the wind speed is 2.0m / s and the ambient temperature is 25 ℃, the temperature of the outer wall of the furnace shall not exceed the specified temperature except the furnace door and the joint edge: the average temperature of the outer wall of the furnace box body: ≤ 82 ℃.
Refractory fiber lining and construction technology advantages of methanol conversion furnace;
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