scholarly journals Beneficial use of ultrasound irradiation in synthesis of beta–clinoptilolite composite used in heavy oil upgrading process

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16797-16811 ◽  
Author(s):  
Sahar Safari ◽  
Reza Khoshbin ◽  
Ramin Karimzadeh
Keyword(s):  
Heavy Oil ◽  
High Stability ◽  
Zeolite Catalyst ◽  
Ultrasound Irradiation ◽  
Beta Zeolite ◽  
Lower Amount ◽  
Beneficial Use ◽  
Heavy Oil Upgrading

Beta–clinoptilolite composite synthesized in the presence of ultrasound irradiation exhibited high stability in heavy oil upgrading process while producing equal amount of light fuels and lower amount of coke compared to beta zeolite catalyst.

scholarly journals High-efficiency catalytic performance over mesoporous Ni/beta zeolite for the synthesis of quinoline from glycerol and aniline

RSC Advances ◽  
2017 ◽  
Vol 7 (16) ◽  
pp. 9551-9561 ◽  
Author(s):  
An Li ◽  
Chen Huang ◽  
Cai-Wu Luo ◽  
Wen-Jun Yi ◽  
Zi-Sheng Chao
Keyword(s):  
Catalytic Activity ◽  
Vapor Phase ◽  
High Efficiency ◽  
Zeolite Catalyst ◽  
Catalytic Performance ◽  
Beta Zeolite ◽  
Phase Process

Quinoline was synthesized via the typical Skraup approach with a vapor-phase process. The mesoporous Ni/beta zeolite catalyst exhibited high-efficiency catalytic activity and an enhanced ability of anti-deactivation.

scholarly journals Conversion of Sucrose into Lactic Acid over Functionalized Sn-Beta Zeolite Catalyst by 3-Aminopropyltrimethoxysilane

ACS Omega ◽  
2018 ◽  
Vol 3 (12) ◽  
pp. 17430-17438 ◽  
Author(s):  
Ling Kong ◽  
Zheng Shen ◽  
Wei Zhang ◽  
Meng Xia ◽  
Minyan Gu ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Zeolite Catalyst ◽  
Beta Zeolite

Refinery bitumen and domestic unconventional heavy oil upgrading in supercritical water

2019 ◽  
Vol 152 ◽  
pp. 104569 ◽  
Author(s):  
Ramazan Oğuz Canıaz ◽  
Serhat Arca ◽  
Muzaffer Yaşar ◽  
Can Erkey
Keyword(s):  
Supercritical Water ◽  
Heavy Oil ◽  
Heavy Oil Upgrading

scholarly journals Hydrogenation and Dehydrogenation of Tetralin and Naphthalene to Explore Heavy Oil Upgrading Using NiMo/Al2O3 and CoMo/Al2O3 Catalysts Heated with Steel Balls via Induction

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 497 ◽  
Author(s):  
Abarasi Hart ◽  
Mohamed Adam ◽  
John P. Robinson ◽  
Sean P. Rigby ◽  
Joseph Wood
Keyword(s):  
Heavy Oil ◽  
Coke Formation ◽  
Plug Flow ◽  
Fixed Bed ◽  
Effect Of Temperature ◽  
Catalytic Upgrading ◽  
Heavy Oil Upgrading ◽  
Steel Balls ◽  
Surrounding Fluid

This paper reports the hydrogenation and dehydrogenation of tetralin and naphthalene as model reactions that mimic polyaromatic compounds found in heavy oil. The focus is to explore complex heavy oil upgrading using NiMo/Al2O3 and CoMo/Al2O3 catalysts heated inductively with 3 mm steel balls. The application is to augment and create uniform temperature in the vicinity of the CAtalytic upgrading PRocess In-situ (CAPRI) combined with the Toe-to-Heel Air Injection (THAI) process. The effect of temperature in the range of 210–380 °C and flowrate of 1–3 mL/min were studied at catalyst/steel balls 70% (v/v), pressure 18 bar, and gas flowrate 200 mL/min (H2 or N2). The fixed bed kinetics data were described with a first-order rate equation and an assumed plug flow model. It was found that Ni metal showed higher hydrogenation/dehydrogenation functionality than Co. As the reaction temperature increased from 210 to 300 °C, naphthalene hydrogenation increased, while further temperature increases to 380 °C caused a decrease. The apparent activation energy achieved for naphthalene hydrogenation was 16.3 kJ/mol. The rate of naphthalene hydrogenation was faster than tetralin with the rate constant in the ratio of 1:2.5 (tetralin/naphthalene). It was demonstrated that an inductively heated mixed catalytic bed had a smaller temperature gradient between the catalyst and the surrounding fluid than the conventional heated one. This favored endothermic tetralin dehydrogenation rather than exothermic naphthalene hydrogenation. It was also found that tetralin dehydrogenation produced six times more coke and caused more catalyst pore plugging than naphthalene hydrogenation. Hence, hydrogen addition enhanced the desorption of products from the catalyst surface and reduced coke formation.

Kinetics of extra-heavy oil upgrading in supercritical water with and without zinc nitrate using the phase separation kinetic model

2020 ◽  
Vol 165 ◽  
pp. 104961
Author(s):  
Seungjae Sim ◽  
Won Bae Kong ◽  
Jonghyeon Kim ◽  
Jimoon Kang ◽  
Hwi-Sung Lee ◽  
...  
Keyword(s):  
Phase Separation ◽  
Kinetic Model ◽  
Supercritical Water ◽  
Heavy Oil ◽  
Zinc Nitrate ◽  
Heavy Oil Upgrading ◽  
Kinetics Of

Catalytic oxidation of aliphatic chlorinated volatile organic compounds over Pt/H-BETA zeolite catalyst under dry and humid conditions

2005 ◽  
Vol 107-108 ◽  
pp. 200-207 ◽  
Author(s):  
Rubén López-Fonseca ◽  
Jose I. Gutiérrez-Ortiz ◽  
Miguel A. Gutiérrez-Ortiz ◽  
Juan R. González-Velasco
Keyword(s):  
Volatile Organic Compounds ◽  
Catalytic Oxidation ◽  
Organic Compounds ◽  
Zeolite Catalyst ◽  
Beta Zeolite ◽  
Chlorinated Volatile Organic Compounds ◽  
Volatile Organic
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