Beneficial roles of H-donors as diluent and H-shuttle for asphaltenes in catalytic upgrading of vacuum residue
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2016.12.119
Abstract: Abstract The effects of various organic solvents having different H-donor index, asphaltene solubility, and alkyl-substitution on the upgrading of vacuum residue (VR) were investigated under thermal cracking or catalytic hydrocracking conditions at 673 K and 10.0 MPa… read more here.
Keywords: vacuum residue; coke formation; roles donors; upgrading vacuum ... See more keywords
Coke formation during thermal reaction of tar from pyrolysis of a subbituminous coal
Sign Up to like & getrecommendations! Published in 2017 at "Fuel Processing Technology"
DOI: 10.1016/j.fuproc.2016.03.022
Abstract: Abstract The reaction of volatiles in a coal pyrolysis reactor determines the yield and quality of tar. This paper studies the yield, group composition and radical concentration of tars obtained from pyrolysis of a subbituminous… read more here.
Keywords: pyrolysis; pyrolysis reactor; pyrolysis subbituminous; coke formation ... See more keywords
Improved catalytic performance and decreased coke formation in post-treated ZSM-5 zeolites for methanol aromatization
Sign Up to like & getrecommendations! Published in 2017 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2016.11.014
Abstract: Abstract The effects of the zeolite structure and acidity on the catalyst life and coke formation in the methanol-to-aromatics (MTA) reaction were investigated using several MFI zeolites with different degrees of mesoporosity and acidity. These… read more here.
Keywords: improved catalytic; zsm zeolites; coke formation; mesoporosity ... See more keywords
Coke Formation during Thermal Treatment of Bio-oil
Sign Up to like & getrecommendations! Published in 2020 at "Energy & Fuels"
DOI: 10.1021/acs.energyfuels.0c01323
Abstract: Bio-oil is a mixture of organics produced from pyrolysis of biomass. The organics in bio-oil serve as the feedstock for the production of hydrogen, chemicals, biofuels and carbon materials. In many... read more here.
Keywords: formation thermal; coke formation; treatment bio; bio oil ... See more keywords
CoatAlloy ™ Barrier Coating for Reduced Coke Formation in Steam Cracking Reactors: Experimental Validation and Simulations
Sign Up to like & getrecommendations! Published in 2018 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.7b04271
Abstract: The coking tendency under steam cracking conditions of CoatAlloy, a newly developed multilayered Al barrier coating deposited on a commercial 25/35 Cr–Ni base alloy and aimed at reducing the coke formation under hydrocarbon atmosphere at… read more here.
Keywords: coatalloy barrier; barrier coating; coke formation; steam cracking ... See more keywords
State-of-the-art of Coke Formation during Steam Cracking: Anti-Coking Surface Technologies
Sign Up to like & getrecommendations! Published in 2018 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.8b03221
Abstract: Although steam cracking is a mature technology, mitigation of coke formation remains one of the main challenges in the petrochemical industry. To increase the olefin output of existing plants, coil materials that can withstand higher… read more here.
Keywords: surface; coke formation; state art; steam cracking ... See more keywords
Predicting Selectivity for Ethane Dehydrogenation and Coke Formation Pathways over Model Pt–M Surface Alloys with ab Initio and Scaling Methods
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b03789
Abstract: The effects of alloying platinum with transition and post-transition metals on the kinetics and thermodynamics of dehydrogenation and coke formation pathways during light alkane dehydrogenation have been studied using density functional theory. Supported Pt catalysts… read more here.
Keywords: dehydrogenation; coke formation; selectivity ethane; formation ... See more keywords
Coke Formation on Zeolites Y and Their Deactivation Model
Sign Up to like & getrecommendations! Published in 2020 at "Petroleum Chemistry"
DOI: 10.1134/s0965544120040039
Abstract: Abstract The formation of coke on active sites in the entire volume of zeolite Y crystals has been experimentally confirmed. However, complete deactivation in the case of decationated zeolites is due to the blocking of… read more here.
Keywords: coke formation; zeolites deactivation; formation; formation zeolites ... See more keywords
Mathematical Modeling of Ethane Cracking Furnace of Olefin Plant with Coke Formation Approach
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Chemical Reactor Engineering"
DOI: 10.1515/ijcre-2017-0243
Abstract: Abstract In this study, ethylene furnace modeling is carried out by ethane pyrolysis (thermal cracking or hydrocracking) method in Arya Sasol Petrochemical Company (ninth olefin unit, Assaluyeh, Iran), which includes the solution of kinetic equations… read more here.
Keywords: olefin; coke formation; mathematical modeling; formation ... See more keywords
Hydrocracking of C5-Isolated Asphaltene and Its Fractions in Batch and Semi-Batch Reactors
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DOI: 10.3390/en13174444
Abstract: Non-catalytic and catalytic hydrocracking of C5-isolated asphaltene and its subfractions were performed in batch and semi-batch reactors at various temperatures. Catalyst and H2 played an important role in the hydrocracking of asphaltenes. In the batch… read more here.
Keywords: coke formation; semi batch; reaction; batch ... See more keywords
Study on the Fuel Decomposition Characteristics and Coke Formation by Type of Endothermic Fuel and Method of Catalyst Molding
Sign Up to like & getrecommendations! Published in 2019 at "Korean Journal of Chemical Engineering"
DOI: 10.9713/kcer.2019.57.5.611
Abstract: 본 연구에서는 흡열연료의 종류와 촉매의 성형 방법에 따른 연료의 분해특성 및 코크 생성에 대하여 분석하였다. 실험에 사용된 연료는 methylcyclohexane (MCH), n-dodecane 그리고 exo-tetrahydrodipentadiene (exo-THDCP)이며, 백금을 담지한 USY720에 압력만을 가하여 제조한 disk 형태, binder와 silica solution을… read more here.
Keywords: coke formation; fuel decomposition; fuel; characteristics coke ... See more keywords