Jinan Refinery

The DCC process was first demonstrated in 1990 in SINOPEC Jinan Refinery, and has been commercialized since 1994. Shaw is the exclusive licensed provider of DCC technology outside China. The first DCC unit designed and engineered by Shaw was successfully commissioned for Thai Petrochemical Industries in 1997. Up to now, nine units have been put into production worldwide, and several other DCC units (in China and India) are under construction. 

Figure 5.3 shows light olefin yields of DCC process in four refineries with different feedstocks at reaction temperatures of 545-565°C. The propylene yield can reach 23 wt% with paraffinic feed, and about 18-19 wt% with intermediate-based feed. The propylene/ethylene ratio is about 3.5-6.2, much higher than that of steam cracking. The DCC operation can be modified to further increase the yield of propylene. For example, recycling a part of DCC cracked naphtha to the reactor resulted in a propylene yield increment of 3.5 wt % in Jinan Refinery [16]. 

It would be an understatement to say that the gas expander turbine forms a major part of the power train. Evaluating off-design performance for the expander installed in the Sinopec Jinan Oil Refinery is presented as an example of an appropriate evaluation method. It should be noted that calculations are based on actual field measurements and plant experience. 

Source Zhang and Wang, Sinopec Jinan Oil Refinery, Jinan, Shandong, P.R. China. 

Specification of power train in Sinopec Jinan oil refinery... 

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