Pilot plant unit schematic

Figure 1. PDM pilot plant unit schematic diagram. (Reprinted from ref. 9. Copyright 1988 American Chemical Society.)...

In 1944 a fluid catalyst pilot plant was erected and operated at the Olean laboratory. A schematic flow diagram of the unit is shown in Figure 1. The unit operated well from the beginning. The conversion of jeactants exceeded that achieved by the Germans even at space velocities 10 to 20 times those used in Europe. Also, iron catalysts were developed which gave oil yields comparable with those obtained by fixed-bed operations. Typical results from these early experiments are shown in Table I. A discussion of the conditions for the different runs is given in subsequent paragraphs. 

Shell Canada s Oakville Research Centre has had a riser pilot plant in operation for about ten years. A series of modifications have been made to the unit over the years in order to improve its ability to process heavier feedstocks. In spite of a rather low feedrate of 0.52 g/s (approximately 0.3 B/D), poorer quality feedstocks have been processed than those described above. To date, feedstocks with Conradson carbon contents up to 9.9%w and viscosities up to 120 cSt at 100 C have been successfully run in the ORC pilot plant. Operating experience with the pilot plant is summarized in Table I, and a schematic is shown in Figure 2. 

Figere 17.4-2 is a generalized schematic of a pilot-plant sized unit. 

The schematic for a CFB process for partial oxidation of -butane is shown in Fig. 1.9. Very high selectivity and conversion (>90%) was shown experimentally in both the bench-scale (1/8 in diameter x 16 ft tall tube) and pilot-plant riser units (ca. 4-in diameter) (Contractor, 1999 Patience... 

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