U.J. Etim

ORCID: 0000-0003-4070-9877
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About
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Research Areas
  • Catalytic Processes in Materials Science
  • Catalysis and Hydrodesulfurization Studies
  • Zeolite Catalysis and Synthesis
  • Nanomaterials for catalytic reactions
  • Catalysis and Oxidation Reactions
  • Catalysts for Methane Reforming
  • Metal-Organic Frameworks: Synthesis and Applications
  • Adsorption and biosorption for pollutant removal
  • Mesoporous Materials and Catalysis
  • Carbon dioxide utilization in catalysis
  • CO2 Reduction Techniques and Catalysts
  • Catalysis for Biomass Conversion
  • Chemical Synthesis and Characterization
  • Petroleum Processing and Analysis
  • Oxidative Organic Chemistry Reactions
  • Water Quality and Pollution Assessment
  • Electrochemical Analysis and Applications
  • Industrial Gas Emission Control
  • TiO2 Photocatalysis and Solar Cells
  • Enhanced Oil Recovery Techniques
  • Carbon Dioxide Capture Technologies
  • Solar-Powered Water Purification Methods
  • Advances in Cucurbitaceae Research
  • Metal Extraction and Bioleaching
  • Odor and Emission Control Technologies

Guangdong Technion-Israel Institute of Technology
2020-2024

Technion – Israel Institute of Technology
2020

China University of Petroleum, East China
2015-2019

Qingdao Center of Resource Chemistry and New Materials
2019

Institute of Chemical Engineering
2019

Institute of Catalysis and Petrochemistry
2019

State Key Laboratory of Catalysis
2019

State Key Laboratory of Heavy Oil
2015-2018

China University of Petroleum, Beijing
2015

University of Uyo
2012-2014

Adsorption of methylene blue from aqueous solution onto coconut coir dust (CCD) a low cost agricultural waste material in batch process was investigated. studied as function amount adsorbent, pH and concentration with time. It found that percentage adsorption varied linearly the adsorbent time but varies non-linearly pH. equilibrium data were represented by isotherm, kinetics thermodynamics models. Three isotherm models namely Langmuir, Freundlich Temkin tested to fit well into these R2 ⩾...

10.1016/j.jscs.2012.09.014 article EN cc-by-nc-nd Journal of Saudi Chemical Society 2012-10-13

The fluid catalytic cracking (FCC) technology is one of the pillars modern petroleum industry which converts crude oil fractions into many commodity fuels and platform chemicals, such as gasoline. Although FCC field quite mature, research scope still enormous due to changing feedstock, gradual shifts in market demands evolved unit operations. In this review, we have described current status technology, variation present day feedstocks catalysts, particularly, great attention paid effects...

10.1080/01614940.2018.1549011 article EN Catalysis Reviews 2018-12-13

Heterogeneous catalytic hydrogenation of carbon dioxide (CO 2 ) to methanol is a practical approach mitigating its greenhouse effect in the environment while generating good economic profits. Though applicable on industrial scale through syngas route, catalyst Cu/ZnO/Al O 3 suffers from series technical problems when converting CO directly, which include low single-pass conversion, selectivity, requiring high pressure and fast deactivation by reverse water gas shift reaction. Over years,...

10.3389/fenrg.2020.545431 article EN cc-by Frontiers in Energy Research 2020-09-29

Many natural oxidations are relevant to the origin and running of life but usually proceeded under mild conditions using molecular oxygen (O2) in air as sole oxidant enzymes catalysts. In modern society, catalysis plays an essential role many industries, such chemical pharmaceutical industries. However, most heterogeneous catalytic reactions need high operational reaction temperature pressure. Research interest is redirected green recent years, e.g., conditions, employing solvents oxidants...

10.1080/01614940.2021.1919044 article EN Catalysis Reviews 2021-10-31

Activated carbon obtained from plantain peels was applied to the optimization of adsorption process parameters for abstraction colour simulated dye effluent. The activated prepared and characterized using nitrogen adsorption, X-ray diffractometry (XRD) Fourier transform infrared spectroscopy (FTIR). Equilibrium isotherms were modelled Langmuir, Freundlich, Dubinin–Radushkevich Temkin models; models provided best fit sorption process, with a correlation coefficient greater than 0.95. D–R...

10.1016/j.jtusci.2016.01.003 article EN cc-by-nc-nd Journal of Taibah University for Science 2016-03-05

In this study, a series of Ni/ZnO–Al2O3 adsorbents were synthesized by one-pot cation–anion double hydrolysis (CADH) method. The materials characterized N2 sorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), ultraviolet–visible diffuse reflectance spectroscopy (UV–vis), Raman spectroscopy, and H2 temperature-programmed reduction (H2-TPR). reactive adsorption desulfurization (RADS) performance the was evaluated in fixed bed reactor using thiophene...

10.1021/acs.iecr.5b04421 article EN Industrial & Engineering Chemistry Research 2016-03-17

A new matrix material for the fluid catalytic cracking (FCC) catalyst was prepared using zeolite Y mother liquor to modify surface acidity of γ-Al2O3. The modified γ-Al2O3 characterized a variety techniques, and relationship between performances in vacuum gas oil (VGO) correlated. Characterization results showed that Brönsted acid sites derived mainly from isolated silanol groups, which increased on γ-Al2O3, while Lewis reduced dramatically after modification. Correlation indicated...

10.1021/acs.iecr.7b04243 article EN Industrial & Engineering Chemistry Research 2018-01-08
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