FLEXIBLE NEW FCC TECHNOLOGY TO MEET THE EVER CHANGING MARKET DEMAND

Chen, Zubi (Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China) | Li, Caiying (Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China)

OnePetro 

FLEXIBLE NEW FCC TECHNOLOGY TO MEET THE EVER CHANGING MARKET DEMAND FLEXIBLE NEW FCC TECHNOLOGY TO MEET THE EVER CHANGING MARKET DEMAND Zubi Chen, Caiying Li Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China Abstract. Being a main conversion process, FCC is evolving toward processing more heavier and dirtier feeds, and to produce varied product slates to meet the local market demands. Frequently many of the product demands made on the FCC process operator are seemingly contradictory. However, with the advance of FCC process and catalyst manufacture technology over the past few years, these contradictories can be solved profitably. Daqing VR FCC, maximized distillate production (MDP) technique and the maximizing gas and distillate (MGD) process are the examples. Specific data of each example will be revealed and shown on the poster. 1.27 without lowering the octane number of

INTRODUCTION

gasoline. Table 2 shows the details of Processing of residues has become a commercial trial results. growing trend in worldwide Fluid Catalytic MGD PROCESS Cracking (FCC) technology. As a dominate Example 3 is a new process that heavy oil conversion process in China, FCC is maximizes both LPG and distillate (MGD) evolving toward processing more heavier and yields, which is somewhat contradicted in FCC dirtier feeds, and to produce varied product operation. An existing commercial unit, which slates to meet the local market demands. was operating with LPG promoter, would like Hence, new techniques that render more to increase further the yield of LPG as well as flexible operations are successively the yield of LCO. In spite of the LPG yield developed. Daqing VR FCC, MDP and MGD was already high, by adopting the new MGD are the examples. process, satisfactory results have been . DAQING VR FCC obtained. Figure 1 compares the product slates Example 1 is a resid FCC technology with of conventional resid FCC (with promoter) and a unique catalyst formulation for processing MGD (with RGD catalyst). It can be seen 100% virgin Daqing vacuum residue. Table 1 from the Figure that LPG yield increased by shows the typical data taken from a 2 bbl/d about 2 w% and LCO increased by about 6 riser pilot unit. It is seen from Table 1 that w% at virtually constant dry gas and coke Daqing residue has 8.2 w% CCR and is so yield, with the penalty of the gasoline yield, of viscose. Nevertheless, pilot test results are so course. encouraging. At catalyst artificially Reduction of olefins in gasoline is contaminated with 3500 ppm Ni, the coke and urgently called for in China, because new dry gas yields are reasonable; and the high specification limits olefins content to be less value products yield high up to 74 w%+ and 84 than 35 v% and is to be on practice in five w%+ for once-through and recycle mode giant cities in mid-2000 as the first phase. operation, respectively. A commercial VR There are about 75% of current gasoline pool FCC unit in China has been in ope