Research of pyrolysis coke suppression based on different furnace tube treatment method

The effects discrepancy on the surface treatment of cracking furnace tube with different compounds and treatments means was studied. The test results showed that it would lead to serious slagging and produce more CO in pyrolysis gas without any treatment of furnace tube. If only using silicon-containing organic compound to treat the furnace tube, it could achieve good effects of inhibiting coking, but the inhibition effect on generated CO in pyrolysis gas was not ideal. If the silicon-containing organic compounds and sulfur-containing organic compounds were used sequentially to treat the surface of furnace tube, it can reduce significantly the amount of coke and generated CO in pyrolysis gas.