Results 101 to 110 of about 1,889,497 (244)

Joule self‐heating enabled oxygen transport and coupled methane reactions in a La0.6Sr0.4Co0.2Fe0.8O3‐δ hollow fiber membrane reactor

AIChE Journal, EarlyView.
Abstract Mixed‐conducting ceramic hollow fiber membranes are a versatile platform for oxygen separation, value‐added chemical production, and oxy‐combustion. Because oxygen permeation is thermally activated, these systems typically rely on bulky, energy‐intensive furnaces that suffer from low efficiency and large thermal inertia.
Gang Wang, Hamed Abdolahimansoorkhani, Xingjian Xue   +2 more
wiley   +1 more source

Direct oxidative coupling of methane into ethylene in a catalyst-enhanced planar solid oxide fuel cell stack reactor

Physics Open
This study presents an efficient method to convert methane into valuable olefins using a Solid Oxide Fuel Cell (SOFC) membrane reactor. Methane, abundant in natural and shale gas, serves as a sustainable feedstock due to its favorable carbon-hydrogen ...
Yeheng He, Fei Meng, George Xing, Kefeng Liu, Shujie Lou, Haicheng Xiao, Yongchun Tang   +6 more
doaj   +1 more source

Zeolite Membrane‐Based Low‐Temperature Dehydrogenation of a Liquid Organic Hydrogen Carrier: A Key Step in the Development of a Hydrogen Economy

Advanced Science
Methylcyclohexane (MCH) dehydrogenation is an equilibrium‐limited reaction that requires high temperatures (>300 °C) for complete conversion. However, high‐temperature operation can degrade catalytic activity and produce unwanted side products.
Sejin Kim, Seungmi Lee, Suhyeon Sung, Sangseo Gu, Jinseong Kim, Gihoon Lee, Jaesung Park, Alex C. K. Yip, Jungkyu Choi   +8 more
doaj   +1 more source

A catalytic membrane micro-reactor for the direct synthesis of propene oxide [PDF]

, 2012
In this work, a catalytic membrane reactor for the direct epoxidation of propene oxide is developed. The titania and silica membranes synthesis method from an alcoxide precursor, TiO2 nano-particle powder and SiO2 colloidal solution is described ...
Kertalli, E., Schouten, J.C., Nijhuis, T.A.   +2 more
core   +2 more sources

Catalytic partial oxidation of gasoline to syngas in a dense membrane reactor

, 2004
In our previous work, it was shown that LiLaNiO/gamma-Al2O3 was an excellent catalyst for partial oxidation of heptane to syngas in a fixed-bed reactor at high temperature and the selectivity of CO was about 93%.
Han, Wei, Xiong, Guoxing, Xiong, GX, Han, W, Zhu, Wenliang, Yang, WS, Yang, Wenshen, Zhu, WL   +7 more
core   +1 more source

Creatine-Functionalized Graphene Oxide Membrane Reactor for Efficient Synthesis of 2-Amino-4H-Chromene Derivatives

AppliedChem
Derivatives of 2-amino-4H-chromene possess diverse pharmacological activities. However, traditional multicomponent synthesis suffers from toxic solvents, long reaction times, and difficulties in balancing catalytic activity and selectivity, which ...
Xinxin Cui, Haoran Shi, Yue Long, Xiqi Zhang, Kai Song   +4 more
doaj   +1 more source

Catalytic Membrane Reactor for Extraction of Hydrogen from Bioethanol Reforming [PDF]

, 2014
This research explores a novel application of catalytic membrane reactors for high- purity hydrogen extraction from bioethanol reforming. Conventional membrane systems employ hydrogen permselective materials such as palladium, polymer membranes, which ...
Kuncharam, Bhanu Vardhan
core   +1 more source

Decouple H2O2 Electrosynthesis From Microenvironmental Decomposition via Atomic Site Density Engineering

Angewandte Chemie International Edition, EarlyView.
Using defect‐rich Co‐N2O2 single‐atom catalysts as a model system, this work reveals that atomic site density governs the competition between H2O2 electrosynthesis and microenvironmental decomposition during 2e−‐ORR. Optimised site isolation suppresses HPRR and HDR, thereby establishing a site‐density principle to balance H2O2 formation and ...
Junwen Chen, Hongyu Zhou, Qiming Zhang, Shuang Zhong, Wei Ren, Lei Shi, Li Gao, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Towards scaling up the sonochemical synthesis of Pt-nanocatalysts

Ultrasonics Sonochemistry
Large scale production of electrocatalysts for electrochemical energy conversion devices such as proton exchange membrane fuel cells must be developed to reduce their cost.
Henrik E. Hansen, Thea B. Berge, Frode Seland, Svein Sunde, Odne S. Burheim, Bruno G. Pollet   +5 more
doaj   +1 more source

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee, Ashish Kumar, Mayurkumar P. Patil, Rohit B. Meshram   +3 more
wiley   +1 more source