DCC Eng
DCC Eng
DCC Eng
Sinopec Tech
As employing specially designed and patented zeolite catalysts, the reaction temperature in DCC is higher than that of conventional FCC, but much lower than that of steam cracking.
Flexibility of process operation. Easy to obtain the shift of DCC operation modes by regulating the operating conditions and catalyst formulations.
Easy of separation and recovery of product streams through a similar absorption/ fractionation of conventional FCC. It is not necessary to use cryogenic separation of steam cracking for the separation and recovery of DCC product stream.
Impurity hydrocarbons are trace in DCC lighter olefin products, and hydrotreating is not needed.
Commercial Experience
The first commercial DCC unit was put into production in 1990, and ten DCC units have been licensed and the largest one among them is 4.50MMTA. It is estimated that there will be totally 13 units in operation by the end of 2010.
Features of Technology
Technological Services
Turn-key project or process design package can be provided as well as technical consulting, training and on-site services. And the related catalysts with their technical services can be offered separately. For more information contact SINOPEC TECH at: Tel: 0086-10-84275257 Fax: 0086-10-84271847 Website: www.sinopectech.com Email: g-technology@sinopec.com.cn
DCC has two reactor operating modes: DCC-I (Riser plus fluidized dense bed reactor, maximum propylene mode) and DCC-II (Riser reactor, maximum iso-olefins mode). DCC can process different heavy feeds (VGO, deasphalted oil, coker gas oil, atmospheric residue, vacuum residue, etc.), and paraffinic feedstocks are the best feeds for DCC. In DCC maximum propylene operation mode, over 20w% propylene yield can be obtained from paraffinic feedstocks. The
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