Simulation of a Commercial Semiregenerative Reforming Plant Using Feedstocks with and without Benzene Precursors
✍ Scribed by J. Ancheyta; E. Villafuerte; P. Schachat; R. Aguilar; E. González
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 103 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0930-7516
No coin nor oath required. For personal study only.
✦ Synopsis
This paper describes the use of kinetic and reactor modeling to simulate the behavior of a commercial semi-regenerative reforming unit when two feedstocks (with and without benzene precursors) are employed. The feed without benzene precursors was prepared by fractionation of a typical reforming feed. A cut point of 88 C was selected because most of the C 5 ±C 6 light naphtha is excluded. This cut point was not deep enough to remove the main benzene precursor, cyclohexane, but other precursors, i.e. methylcyclopentane and n-hexane, were almost totally eliminated. It was decided not to increase this cut point value beyond 88 C because this would reduce the flowrate of the feedstock to the reforming unit, which is not convenient due to refineries gasoline production policies. It has been shown that naphtha fractionation is a very good method for reducing the content of benzene precursors in reforming feedstocks, and consequently an important decrease in reformate benzene concentration can be achieved.