Impact of Multiphase Behavior on Coke Deposition in a Commercial Hydrotreating Catalyst under Sedimentation Conditions†

2005 ◽  
Vol 19 (4) ◽  
pp. 1405-1411 ◽  
Author(s):  
Xiaohui Zhang ◽  
Martin Chodakowski ◽  
John M. Shaw
Keyword(s):  
Coke Deposition ◽  
Hydrotreating Catalyst ◽  
Multiphase Behavior ◽  
Sedimentation Conditions

Modification of activated carbon fiber pore structure by coke deposition

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-279-Pr3-286
Author(s):  
X. Dabou ◽  
P. Samaras ◽  
G. P. Sakellaropoulos
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Pore Structure ◽  
Activated Carbon Fiber ◽  
Coke Deposition

Temperature-Programmed Methanol Conversion and Coke Deposition on Fluidized-Bed Catalyst of SAPO-34

2013 ◽  
Vol 33 (2) ◽  
pp. 367-374 ◽  
Author(s):  
Cuiyu YUAN ◽  
Yingxu WEI ◽  
Jinzhe LI ◽  
Shutao XU ◽  
Jingrun CHEN ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Methanol Conversion ◽  
Coke Deposition ◽  
Temperature Programmed

Hydrological and sedimentation conditions in a non-tidal lagoon during ice coverage – The example of Vistula Lagoon in the Baltic Sea

2019 ◽  
Vol 216 ◽  
pp. 38-53 ◽  
Author(s):  
Boris Chubarenko ◽  
Vladimir Chechko ◽  
Aleksander Kileso ◽  
Elena Krek ◽  
Viktoria Topchaya
Keyword(s):  
Baltic Sea ◽  
Vistula Lagoon ◽  
The Baltic Sea ◽  
Ice Coverage ◽  
The Baltic ◽  
Sedimentation Conditions

scholarly journals Bio-DEE Synthesis and Dehydrogenation Coupling of Bio-Ethanol to Bio-Butanol over Multicomponent Mixed Metal Oxide Catalysts

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 660
Author(s):  
Izabela S. Pieta ◽  
Alicja Michalik ◽  
Elka Kraleva ◽  
Dusan Mrdenovic ◽  
Alicja Sek ◽  
...  
Keyword(s):  
Active Sites ◽  
Internal Combustion Engines ◽  
Mixed Oxides ◽  
Catalyst Activity ◽  
Product Distribution ◽  
Coke Deposition ◽  
Precipitation Method ◽  
Mixed Metal Oxide ◽  
Low Carbon ◽  
Municipal Solid Wastes

Within the Waste2Fuel project, innovative, high-performance, and cost-effective fuel production methods from municipal solid wastes (MSWs) are sought for application as energy carriers or direct drop-in fuels/chemicals in the near-future low-carbon power generation systems and internal combustion engines. Among the studied energy vectors, C1-C2 alcohols and ethers are mainly addressed. This study presents a potential bio-derived ethanol oxidative coupling in the gas phase in multicomponent systems derived from hydrotalcite-containing precursors. The reaction of alcohol coupling to ethers has great importance due to their uses in different fields. The samples have been synthesized by the co-precipitation method via layered double hydroxide (LDH) material synthesis, with a controlled pH, where the M(II)/M(III) ≈ 0.35. The chemical composition and topology of the sample surface play essential roles in catalyst activity and product distribution. The multiple redox couples Ni2+/Ni3+, Cr2+/Cr3+, Mn2+/Mn3+, and the oxygen-vacant sites were considered as the main active sites. The introduction of Cr (Cr3+/Cr4+) and Mn (Mn3+/Mn4+) into the crystal lattice could enhance the number of oxygen vacancies and affect the acid/base properties of derived mixed oxides, which are considered as crucial parameters for process selectivity towards bio-DEE and bio-butanol, preventing long CH chain formation and coke deposition at the same time.

Sign in / Sign up

Export Citation Format

Share Document