The application of on-line decoking technology for the tubes in the 3-chamber furnace of a grass-roots 32 000 b/d delayed coker is introduced in respect of on-line decoking process flow, operation, operating precautions and decoking results etc.

After it started, the on-line spalling technology has been applied two times.

For a long term, the coke burning time of the reforming catalyst in the semi-regeneration fixed bed reforming plant of Fujian Refining Chemical Co.

it expounds coke burning method ahead of styrene dehydrogenate catalyst unloading,including coke burning preparation,coke burning procedure and associated issues during the coke burning.

This paper introduces the reasons for poor coke burning effect in FCCUⅠ at SINOPEC Jiujiang Company,including low air flow rate for coke burning,poor stability of regenerator bed,low temperature zone resulted by catalyst returning from catalyst cooler,and low operating linear velocity in dense bed.

The compounding agent A is used as modification agent to improve the scorching and solubility property of damping rubber.

A few Kinds of anti-scorcher in NR blend cured with sulphur have a different mechanism of effect along with the change of accelerator type and blend of accelerators in curing System.

Surface scorch often occurs during the manuafcturing process for nylon sheathed wire.