Process Platform

Haensel, V. (1983). The Development of the Platforming Process—.Some Personal and Catalytic Recollections. In Heterogeneous Catalysis Selected American Histones, eds. B. H. Davis and W. P. Hettinger. Aiiiericaii Clieiiiical Society. Symposium Series No. 222. Washington, DC American Chemical Society. 

CCR Platforming [Continuous Catalyst Regeneration] A development of the Platforming process in which the catalyst is moved continuously through the stacked reactors into a catalyst regeneration section. Developed by UOP in 1970. 

HC Platforming [Hydrocracking] A version of the Platforming process which uses different catalyst systems before the reforming catalyst in order to partially hydrocrack the feed before converting it to aromatic hydrocarbons. 

The Platforming process of UOP, where reforming occurs with a platinum catalyst and the surface of this catalyst acts as a platform for the reaction, has been well named (Fig. 7.10). 

Another application of the Platforming process has been to produce aromatic hydrocarbons. Of particular interest is the production of benzene. It has been shown (10) that yields up to 92% of theoretical based on methylcyclopentane and cyclohexane content can be obtained from light straight-run fractions. Similarly, toluene and xylenes are produced in high yields from the corresponding C7 and Cg fractions. 

For the intended environmental analysis, it seems reasonable to first evaluate a typical platform process for mAb production that the industry is practicing or moving toward with some expected optimization, then extend the analysis to a projected, highly ophmized process based on assessment from experts in the field [27]. 

In the platforming process (Fig. 1), the feedstock is usually a straight-run, thermally cracked, catalytically cracked, or hydrocracked C6 to 200°C naphtha. The feed is first hydrotreated to remove sulfur, nitrogen, or oxygen compounds that would foul the catalyst, and also to remove olefins present in cracked naphthas. The hydrotreated feed is then mixed with recycled hydrogen and preheated to 495 to 525°C at pressures of 116 to 725 psi (0.8 to 5 MPa). Typical hydrogen charge ratios of 4000 to 8000 standard cubic feet per barrel (scf/bbl) of feed are necessary. 

Solis J.J., Moser M.D. and Ibanez F.J., RZ Platforming Process Improves Profitability (European Oil Refining Conference and Exhibition, Lisbon, 1997). 

Application To produce reformate, which is concentrated in benzene, toluene and xylenes (BTX) from naphtha and condensate feedstocks via a high-severity reforming operation with a hydrogen byproduct. The CCR Platforming Process is licensed by UOP. 

Chlorsorb Also called RVG Chlorsorb [Regenerator Vent Gas], A process for removing chlorine compounds (mainly HC1) from the waste gases from the CCR Platforming process. The chlorides are reabsorbed on the catalyst. Developed by UOP and now operated in several oil refineries in the United States and Argentina. 

RZ Platforming A Platforming process using a novel catalyst. The catalyst is a zeolite containing platinum, which maximizes the production of benzene and toluene. First commercialized in 1998. 

---