Pyrometallurgical recovery of platinum group metals from spent catalysts

Z Peng, Z Li, X Lin, H Tang, L Ye, Y Ma, M Rao… - Jom, 2017 - Springer
As an important secondary resource with abundant platinum group metals (PGMs), spent
catalysts demand recycling for both economic and environmental benefits. This article …

Three-phase catalytic reactors for hydrogenation and oxidation reactions

W Joseph - Physical Sciences Reviews, 2016 - degruyter.com
The term “three phase catalytic reactors” generally refers to gas-liquid-solid reaction
systems, in which the solid is typically a heterogeneous catalyst [1]. A fundamental division …

In-situ activation of Pd-TUD-1 during the selective reduction of 1, 5-cyclooctadiene

AT Mubarak, AM Alhanash, M Benaissa… - Microporous and …, 2019 - Elsevier
Here, different loading of palladium (Pd), ranged from 0.5 to 5 wt%, was incorporated into
the three dimensional siliceous mesoporous material; TUD-1. The synthesis procedure was …

Hydrogenation of 1, 5, 9‐cyclododecatriene in fixed‐bed reactors: Down‐vs. upflow modes

RV Chaudhari, R Jaganathan, SP Mathew… - AIChE …, 2002 - Wiley Online Library
Performance of trickle‐bed and up‐flow reactors was studied experimentally and
theoretically for an exothermic multistep hydrogenation of 1, 5, 9‐cyclododecatriene (CDT) …

Three‐phase slurry reactors

VV Buwa, S Roy, VV Ranade - Multiphase Catalytic Reactors …, 2016 - Wiley Online Library
Many of the chemical reactors employed in various sectors of the process and chemical
industries, such as petroleum refining, downstream processing and petrochemicals, bulk …

Solvent-free selective hydrogenation of 1, 5-cyclooctadiene catalyzed by palladium incorporated TUD-1

M Benaissa, AM Alhanash, M Eissa… - Catalysis Communications, 2017 - Elsevier
Palladium (Pd) was incorporated into TUD-1 mesoporous siliceous material by using one-
pot synthesis procedure. The catalytic activity of the prepared samples was evaluated in the …

Hydrogenation of 2, 4-dinitrotoluene using a supported Ni catalyst: Reaction kinetics and semibatch slurry reactor modeling

RV Malyala, RV Chaudhari - Industrial & engineering chemistry …, 1999 - ACS Publications
The kinetics of hydrogenation of 2, 4-dinitrotoluene (2, 4-DNT) using a 10% Ni supported on
zeolite Y (10% Ni/HY) powdered catalyst (dp= 1× 10-5 m) was studied experimentally in a …

Coking and Ex Situ Catalyst Reactivation Using Supercritical CO2:  A Preliminary Study

F Trabelsi, F Stüber, K Abaroudi… - Industrial & …, 2000 - ACS Publications
High initial conversions for the cyclododecatriene (CDT) hydrogenation in a slurry reactor at
433 K and 1.2 MPa were obtained from a supercritical (sc) CO2-cleaned 0.5% Pd/Al2O3 …

Selective hydrogenation of 1, 5, 9-cyclododecatriene in up-and down-flow fixed-bed reactors: experimental observations and modeling

C Julcour, R Jaganathan, RV Chaudhari… - Chemical engineering …, 2001 - Elsevier
The performance of trickle-and flooded-bed reactors has been investigated and compared
for an exothermic multi-step catalytic reaction. Selective hydrogenation of cyclododecatriene …

Numerical integration of the chemical rate equations via a discretized Adomian decomposition

JM Younker - Industrial & engineering chemistry research, 2011 - ACS Publications
Chemists are frequently interested in rate equations, which are first-order differential
equations. Numerical integration of these equations allows the researcher to accurately …