Enhancement of aromatic production in naphtha reforming process by simultaneous operation of isothermal and adiabatic reactors

2011 ◽  
Vol 36 (3) ◽  
pp. 2076-2085 ◽  
Author(s):  
D. Iranshahi ◽  
E. Pourazadi ◽  
K. Paymooni ◽  
M.R. Rahimpour
Keyword(s):  
Simultaneous Operation ◽  
Naphtha Reforming

Elemental Distribution in Pt-Re:Al2O3 Naphtha Reforming Catalysts

1980 ◽  
Vol 38 ◽  
pp. 200-201
Author(s):  
R. L. Freed ◽  
M. J. Kelley
Keyword(s):  
Bimetallic Catalyst ◽  
Supported Catalysts ◽  
Coke Formation ◽  
Materials Characterization ◽  
Metal Catalyst ◽  
Elemental Distribution ◽  
Exact Nature ◽  
Naphtha Reforming ◽  
Reforming Catalysts ◽  
Commercial Introduction

The commercial introduction of Pt-Re supported catalysts to replace Pt alone on Al2O3 has brought improvements to naphtha reforming. The bimetallic catalyst can be operated continuously under conditions which lead to deactivation of the single metal catalyst by coke formation. Much disagreement still exists as to the exact nature of the bimetallic catalyst at a microscopic level and how it functions in the process so successfully. The overall purpose of this study was to develop the materials characterization tools necessary to study supported catalysts. Specifically with the Pt-Re:Al2O3 catalyst, we sought to elucidate the elemental distribution on the catalyst.

Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts

2011 ◽  
Vol 86 (9) ◽  
pp. 1198-1204 ◽  
Author(s):  
María A. Sánchez ◽  
Vanina A. Mazzieri ◽  
Javier M. Grau ◽  
Juan C. Yori ◽  
Carlos L. Pieck
Keyword(s):  
Catalytic Activity ◽  
Naphtha Reforming ◽  
Reforming Catalysts

scholarly journals Automation of dissolution tests

2003 ◽  
Vol 25 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Rolf Rolli
Keyword(s):  
Quality Control ◽  
In Vitro Dissolution ◽  
Pharmaceutical Companies ◽  
Dissolution Testing ◽  
Simultaneous Operation ◽  
Task Forces ◽  
The Core ◽  
Dissolution Tests ◽  
The 1960S

Dissolution testing of drug formulations was introduced in the 1960s and accepted by health regulatory authorities in the 1970s. Since then, the importance of dissolution has grown rapidly as have the number of tests and demands in quality-control laboratories. Recent research works lead to the development of in-vitro dissolution tests as replacements for human and animal bioequivalence studies. For many years, a lot of time and effort has been invested in automation of dissolution tests. There have been a number of in-house solutions from pharmaceutical companies and many have created task forces or even departments to develop automation. Robotic solutions with sequential operation were introduced as well as the simultaneous operation concept developed by SOTAX. Today, pharmaceutical companies focus their resources mainly on the core business and in-house engineering solutions that are very difficult to justify. Therefore, it is important to know the basic considerations in order to plan an automation concept and implement it together with a vendor.

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