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CATOFIN process

The Catofin process, which was formerly the property of Air Products (Houdry Division), uses a proprietary chromium catalyst in a fixed-bed reactor operating under vacuum. There are actually multiple reactors operating in cycHc fashion. In sequence, these reactors process feed for about nine minutes and are then regenerated for nine minutes. The chromium catalyst is reduced from Cr to Cr during the regeneration cycle. [Pg.368]

Tucci, E., Dufallo, J. M. and Feldman, R. J., Commercial Performance of the Houdry CATOFIN Process for Isobutylene Production for MTBE, Catalysts, and Catalytic Processes Used in Saudi Arabia Workshop, KFUPM, Nov. 6, 1991. [Pg.186]

Fig. 1.7. CATOFIN process dehydrogenation of propane adapted from Ullmann [54]. (a) charge heater (b) air heater (c) purge step (d) production step (e) regeneration step. Fig. 1.7. CATOFIN process dehydrogenation of propane adapted from Ullmann [54]. (a) charge heater (b) air heater (c) purge step (d) production step (e) regeneration step.
Figure 1.8 illustrates the operating behavior of the reverse-flow CATOFIN process in the limit of equal heat capacities during reaction and regeneration cycle (h = 1). The inlet temperature of the regeneration gas is set approximately ATai above the inlet temperature of the endothermic reaction feed. In the periodic steady state, only two narrow zones close to both reactor ends contribute considerably to the conversion, while the major part of the fixed bed cools down to a temperature level well... [Pg.17]

Fig. 1.8. Reverse-flow CATOFIN process at equal heat capacity fluxes during production and regeneration cycle periodic temperature profiles (top) and conversion profiles (bottom) at the end of the endothermic semicycle (t = tcyc/2) and the regeneration... Fig. 1.8. Reverse-flow CATOFIN process at equal heat capacity fluxes during production and regeneration cycle periodic temperature profiles (top) and conversion profiles (bottom) at the end of the endothermic semicycle (t = tcyc/2) and the regeneration...
R. G. Craig, T. J. Delaney, J. M. Duffalo, Catalytic dehydrogenation performance of the catofin process. DeWitt Petrochemical Review, Houston 1990. [Pg.44]

Application Technology for dehydrogenation of propane (or isobutane) to make high-purity propylene (or isobutylene). The CATOFIN process uses specially formulated proprietary catalyst from Sud-Chemie. [Pg.173]

Yields and product quality Propylene produced by the CATOFIN process is typically used for the production of polypropylene, where purity demands are the most stringent (>99.95%). The consumption of propane (100%) is 1.17 metric ton (mt) per mt of propylene product. [Pg.173]

Economics Where a large amount of low value LPG is available, the CATOFIN process is the most economical way to convert it to high value product. The large single-train capacity possible with CATOFIN units (the largest to date is for 455,000 mtpy propylene) minimizes the investment cost/mt of product. [Pg.173]

Hydrocarbon Processing, March 1995, p. 104 Hydrocarbon Processing Petrochemical Processes 2005 , AAB Lummus Global CATOFIN Process. [Pg.200]

Both Catofin and Oleflex use an adiabatic reactor concept. The Oleflex process uses four reactor beds in series, which as such is more suitable for addition of a ceramic membrane separation unit than the Catofin process which uses a parallel reactor system. A comparison between the Oleflex process as a base case and an Oleflex process equipped with ceramic membranes is made for the following cases ... [Pg.650]

On behalf of KTI an experimental programme on these reactor concepts has been started at the University of Southern California (USC). Some of the experimental results, concerning the use of Knudsen diffusion membranes are available in the literature [32,40]. These data have been used to calculate the economics of an isothermal propane dehydrogenation membrane reactor concept and are compared with the commercial Oleflex and Catofin processes, based on an adiabatic concept. The experimental circumstances of these lab-scale experiments, especially residence time, pressures and gas composition are not the same as in commercial, large-scale processes. However, we do not expect these differences to have a great influence on the results of the work presented here. [Pg.654]

Tucci, E.L. Dufallo, J.M. Feldman, R.J. Commercial performance of the Houdry Catofin process for isobutylene production for MTBE, Workshop on Catalysts and Catalytic processes. Research Institute, King Fahd University of Petroleum and Minerals Dhaharan, Saudi Arabia, Nov 6, 1991. [Pg.394]

They also evaluated isothermal MR concepts and compared them in performance with the adiabatic Catofin and Oleflex processes. They studied two different type processes using Knudsen diffusion membranes a process called CMRL, patterned after the commercial Oleflex process, with low propane conversion, and a process called CMRH, patterned after the commercial Catofin process with high propane conversion. They have calculated the return on investment (ROI) for all four processes. Though marginally better than the commercial processes, the ROI for all four processes evaluated is not very attractive. A sensitivity analysis indicates that for the ROI of the MR processes to be attractive a price difference between propane and propylene of more that 300/ton is required. Though published calculations have only been performed for the propane/propylene pair, it is not unreasonable to assume that similar conclusions apply to other alkane/alkene pairs. Similar conclusions about catalytic alkane dehydrogenation have also been reached in a technical/economic evaluation study by Amoco workers and their academic collaborators (Ward et al [6.3 ]). [Pg.224]

The application of this technique to light paraffin dehydrogenation is known as the Catofin process (see Sections 2.3.422 and 6.2). [Pg.335]

Commercially, the oldest dehydrogenation process for the dehydrogenation of propane to propene is the Catofin process (113,114) developed in the late 1980s, which is based on catalysts Houdry developed in the mid-1940s. In this process, the feed is heated to 525-635°C and passed over a chromia-alumina catalyst. [Pg.1464]

The old Houdry process has been developed by UCI/Lununus to become the Catofin process while Phillips and UOP have introduced their Star and Ole-flex processes. Linde in Germany has also introduced a process. A range of dif-... [Pg.277]


See other pages where CATOFIN process is mentioned: [Pg.126]    [Pg.154]    [Pg.47]    [Pg.16]    [Pg.18]    [Pg.340]    [Pg.187]    [Pg.596]    [Pg.596]    [Pg.890]    [Pg.648]    [Pg.654]    [Pg.381]    [Pg.223]    [Pg.340]    [Pg.249]    [Pg.1465]    [Pg.6756]    [Pg.462]    [Pg.173]   
See also in sourсe #XX -- [ Pg.596 ]

See also in sourсe #XX -- [ Pg.224 ]




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