Compositions to mitigate coke formation in steam cracking of...

Details Compositions to mitigate coke formation in steam cracking of... Compositions to mitigate coke formation in steam cracking of...

2009-03-13

2011-11-15

Anthony, Joseph D (Department: 1761)

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

C252S182290, C208S04800Q, C208S0480AA, C585S648000, C585S650000

Reexamination Certificate

active

08057707

ABSTRACT:
The invention relates to a combination of compounds and a process using such combination useful for reducing or preventing coke formation in thermal cracking furnaces such as ethylene steam crackers. The combination is comprised of one or more compound of the formula R—Sx—R′ and one or more compound selected from the following group: R1R2CS3; R1R2C═CR3R4; RSH; R1SxR2; R1R2CH2; R1R2R3R4(C4S); and R1R2R3R4R5R6Si2O.

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Grace, K.Y., et al., Suppresion of Coke Formation in the Steam Cracking of Alkanes: Ethane and Propane, Ind. Eng. Chem. Res., 1998, 37, pp. 901-907.

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