Results 41 to 50 of about 20,819 (237)

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

EcoEnergy, 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, Ji‐Xiang Guo, Qiming Huang, Kunpeng Li, Chi Li, Yajie Wu   +5 more
wiley   +1 more source

Oxidative Desulfurization of Fuel Oils

, 2011
Oxidative Desulfurization of Fuel OilsSeveral attractive approaches toward oxidative desulfurization of fuel oils, such as using H(2)O(2)/organic acids, H(2)O(2)/heteropolyacid, H(2)O(2)/Ti-containing zeolites, and other non-hydrogen peroxide systems (e ...
Zhang Yongna, Jiang Zongxuan, Lue Hongying, Li Can, 李灿   +4 more
core   +1 more source

Oxidative desulfurization of tire pyrolysis oil [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2016
This paper presents a low cost method for the purification of oils obtained from the pyrolysis of used tires. Oxidative desulfurization is a promising route for purification of tire pyrolysis oils as hydro-desulfurization may not be affordable ...
Ahmad Shahzad, Ahmad Muhammad Imran, Naeem Khawar, Humayun Muhammad, Sebt-E-Zaeem, Faheem Farrukh   +5 more
doaj   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Desulfurization kinetics and mineral phase evolution of bauxite water slurry (BWS) electrolysis

, 2015
The desulfurization kinetics and mineral phase evolution from bauxite water slurry (BWS) electrolysis were examined. The results showed that the desulfurization ratio in NaCl system increased with current density, and reached up to 96% at 0.22 A/cm(2).
Gong, Xuzhong, Wang, Zhi, Zhuang, Siyuan, Wang, Mingyong, Ge, Lan   +4 more
core   +1 more source

Influence of Top Slag Containing TiO₂ and VO_x on Hot Metal Pre-Desulfurization

Metals
The desulfurization capacity of top slag in the process of pre-desulfurization of hot metal containing vanadium and titanium was researched.
Biwen Yang, Bo Song, Liang Chen, Honghong Sun, Derek O. Northwood, Kristian E. Waters, Hao Ma   +6 more
doaj   +1 more source

Modelling the hot metal desulfurization process using artificial intelligence methods [PDF]

Archives of Civil Engineering
The objective of conducted research on the hot metal desulfurization process was to determine the key process parameters that impact the ultimate outcome of desulfurization. As a result, the noticeable outcome of implementing these measures should be the
Angelika Podolska, Jan Falkus
doaj   +1 more source

Toward a Paradigm Shift in Low‐Temperature SCR Catalyst Design: Defect Engineering and Data‐Driven Integration

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work systematically reviews the key factors influencing the performance of low‐temperature NH3‐SCR. The mechanism and challenges of defect engineering strategies, such as oxygen vacancies, heteroatom doping, crystal facet exposure, and surface reconstruction, in controlling both activity and selectivity were analyzed.
Rongrong Kan, Pinjing He, Fan Lü, Hua Zhang   +3 more
wiley   +1 more source

The mitigation of carbon deposition for Ni-based catalyst in CO2 reforming of methane: A combined experimental and DFT study

Carbon Capture Science & Technology
The dry reforming of CH4 (DRM) reaction can simultaneously convert two greenhouse gases CO2 and CH4 into high valued syngas. Nickel-based catalysts have been widely studied because of the low cost and high activity.
Wuji lai, Lin Wang, Zhongde Dai, Lu Yao, Lin Yang, Wenju Jiang   +5 more
doaj   +1 more source

1,3‐Bis(tetrylene)s: Emerging Platforms for Functional Main‐Group Molecules

European Journal of Inorganic Chemistry, EarlyView.
Bridge design governs the stability and reactivity of 1,3‐bis(tetrylene)s. This review surveys pnictogen‐, chalcogen‐, and tetrel‐bridged systems and shows how geometric preorganization and electronic communication can enable cooperative bond activation and access to unusual heavy‐element π frameworks. Main‐group chemistry has undergone a resurgence as
Daichi Uchida, Yoshiyuki Mizuhata
wiley   +1 more source