CATEGORY: NAPHTHA REACTOR
Chemical Engineering Journal, Volume 184, 1
March 2012, Pages 286–297
Incorporating
multi-membrane tubes for simultaneous management of H2/HC and hydrogenation of
nitrobenzene to aniline in naphtha heat exchanger reactor
E. Pourazadi a, D. Iranshahi a, M.R. Rahimpour a, b, A. Jahanmiri a,
b
a Department of Chemical Engineering, School of Chemical and Petroleum
Engineering, Shiraz University, Shiraz 71345, Iran
b Gas Center of Excellence, Shiraz University, Shiraz 71345, Iran
Abstract
Describes
behavior of a novel membrane heat exchanger reactor in the field of process
intensification. The performance of the catalytic naphtha reforming is
investigated and improved through thermal coupling with the exothermic
hydrogenation of nitrobenzene to aniline.
A bundle of tubular reactors containing the exothermic catalyst is
substituted in the first and the second reactors of conventional naphtha
reforming process to provide the necessary heat of straight run naphtha
reforming. Moreover, membrane concept is introduced into this configuration in
order to supply the exothermic side reaction (to provide hydrogen) and
simultaneously controls the hydrogen doze (H2/HC) in the endothermic side. The
new integrated design has the superiority to enhance hydrogen and aromatic
production rates compared with the current conventional catalytic reformers
(CTR). A detailed one-dimensional model in conjunction with the Smith's model
for naphtha reforming is employed to predict the performance of this
configuration. Such combination promises to result in a process, which is more
compact and less capital intensive, and with potential of substantial savings
in processing costs. Finally, the new configuration can be considered as an
option in revamping the available conventional plants or set up new ones.
Full Text Source (Subscription or Fee): http://www.sciencedirect.com/science/article/pii/S138589471101638X
No comments:
Post a Comment