Esso model

Figure 19. Esso Model II. (Reproduced with permission from reference 89. Copyright 1997 PennWell Books.)...

Figure 9, Esso Model II unit design (Courtesy of KBR)...

Risers are used primarily in FCCs to effect the conversion of the feed oil. They are also used in some older FCC designs (e.g., ESSO Model IV, Kellogg Model III) to air lift spent catalyst up into the regenerator. 

The improvement of the FCC technology was carried out via several types of reactors. In fact, the first one was an up-flow Model I FCC, followed by the down-flow Model II FCC. Also, stacked FCC design, Esso model 4 and the straight-riser design were developed. Eventually, the side-by-side design with straight riser, better for large units, was commercialized in 1950. 

Elemental analyses were performed by the Analytical and Information Division of Esso Research and Engineering Co. NMR spectra were recorded on a Varian Associates A-60 spectrometer, and mass spectra were obtained on either a C.E.C. model 21-103 spectrometer or the Esso... 

Safety case regulation modelled on the Seveso directives has been developing in Australia in recent years. From about 1995 Australian offshore petroleum production has been subject to a safety case requirement, while on shore, a major federal government report in 1996 recommended that the Australian states should introduce safety case requirements for major hazard facilities (NOHSC, 1996). Little progress had been made in implementing this recommendation by the time of the accident at the Esso Longford gas plant in Victoria in 1998. A Royal Commission of inquiry into this accident recommended the implementation of a safety case regime for major hazard... 

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