Results 51 to 60 of about 568,380 (163)

Oxidative desulfurization of dibenzothiophene catalyzed by ionic liquid [BMIm]HSO₄

open access: yes, 2010
An acidic ionic liquid N-butyl-N-methylimidazolium hydrogen sulfate ([BMIm]HSO4) was applied as extractant and catalyst for the oxidative desulfurization of dibenzothiophenes (DBT) in the presence of H2O2 in model oil.
Liu, Daliang   +13 more
core   +1 more source

The synthesis and oxidation desulfurization performance of Ti-modified hierarchical cheese-like ZSM-5 zeolite

open access: yesJournal of Chemical Research, 2022
High-performance hierarchical cheese-like C-ZSM-5 nanocrystals are successfully prepared by acid–base treatment and are evaluated for oxidative desulfurization of dibenzothiophene. The acid–base treatment can generate a large number of Si-OH bonds and an
Ying Wang   +5 more
doaj   +1 more source

First Operation Results of a Methanol Demonstration Plant With Real Steel Mill Gases

open access: yesChemie Ingenieur Technik, EarlyView.
A demonstration plant with industrial setup regarding length, diameter, boiling water cooling system and gas recycle was initially operated with cleaned blast furnace gas and compared with earlier experiments with bottle gases. Dynamic disturbances from the steel mill and gas cleaning unit were noticed and could be compensated by the control system ...
Johannes Michael Voß, Tim Schulzke
wiley   +1 more source

Ultrasonic desulfurization of amphiphilic magnetic-Janus nanosheets in oil-water mixture system

open access: yesUltrasonics Sonochemistry, 2021
Fe3O4 was obtained by reacting FeCl2 and FeCl3 with polyethylene glycol, and labeled onto a amphiphilic Janus nanosheet. It was confirmed by infrared spectroscopy, SEM, AFM and EDS that the Fe3O4 nanoparticles changed from hydrophilic to amphiphilic. The
Chunwei Shi   +4 more
doaj   +1 more source

Process Gas Transitions in the Steel Industry—Planning Corridors for Chemical Utilization

open access: yesChemie Ingenieur Technik, EarlyView.
Scenario‐based planning corridors link route‐ and pace‐dependent steelworks off‐gas availability (BFG, BOFG and SAFG) to a 1000 mtpd methanol demand over 2030–2060, revealing pace‐limited BFG concepts and route/site‐size limits for CO‐rich operation and motivating early CO2 tie‐ins as retrofit‐friendly safeguards.
Ömer Yildirim
wiley   +1 more source

Deep oxidative extractive desulfurization of model diesel fuel using benzimidazolium based ionic liquid type gemini surfactants

open access: yesFuel Processing Technology
Herein, the preparation of alkylated or arylated benzimidazolium ionic liquids type gemini surfactants (bimILs), and their application in diesel desulfurization is reported.
Yousef Ghazal, Reza Najjar
doaj   +1 more source

High-Degree Oxidative Desulfurization of a Commercial Marine Fuel Using Deep Eutectic Solvents and Their Recycling Process

open access: yesSeparations, 2023
Escalating environmental concerns have dictated the need to develop innovative methods for efficiently desulfurizing marine fuels (heavy fuel oils). In this work, the oxidative desulfurization method using deep eutectic solvents (DESs) was applied to ...
Olga Thoda   +4 more
doaj   +1 more source

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

open access: yesEcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang   +5 more
wiley   +1 more source

Ultra-deep Oxidative Desulfurization of Fuel Oil Catalyzed by Dawson-Type Polyoxotungstate Emulsion Catalysts

open access: yes, 2011
Ultra-deep Oxidative Desulfurization of Fuel Oil Catalyzed by Dawson-type Polyoxotungstate Emulsion CatalystsThe Dawson-type polyoxotungstate emulsion catalysts Q(18)P(2)W(18), Q(18)P(2)W(17), and Q(18)P(2)W(12) were successfully synthesized and ...
Zhang Yongna   +5 more
core   +1 more source

Characterization and kinetic studies of oxidation desulfurization of model diesel fuel in an oscillatory baffled reactor using co-magnetic active oxides over activated carbon catalyst

open access: yesIraqi Journal of Chemical and Petroleum Engineering
   Oxidative desulfurization (ODS) has attracted interest in the academic and industrial fields to meet new, stringent environmental legislation and produce environmentally friendly fuel.
Jasim I. Humadi   +2 more
doaj   +1 more source

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