Results 111 to 120 of about 17,390 (287)

Effect of Fe-Mo promoters on HZSM-5 zeolite catalyst for 1-hexene aromatization

Journal of Saudi Chemical Society, 2019
The promotional effect of Fe-Mo species introduced into HZSM-5 (Zeolyst Int., SiO2/Al2O3 ≈ 30) zeolite catalyst by the wetness impregnation method for the 1-hexene aromatization was investigated.
Andrii Kostyniuk, David Key, Masikana Mdleleni   +2 more
doaj   +1 more source

Flipping the Card With Enantiodivergent Organocatalysis

Chemistry – A European Journal, EarlyView.
This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre, Alessio Carioscia, Alessandro Brusa, Armando Carlone   +3 more
wiley   +1 more source

Electroacupuncture enhances extragonadal aromatization in ovariectomized rats

, 2004
Background Repeated electroacupuncture (EA) stimulation is known to stimulate the activity of the hypothalamus-pituitary-adrenal axis, and to enhance the circulation level of estrogen in the ovariectomized rats.
Zhao Hong, Lina Cheng, Cheng Lina, Hong Zhao, Chen Boying, Tian Zhanzhuang, Zhanzhuang Tian, Boying Chen   +7 more
core   +1 more source

Durene conversion in a methanol‐to‐jet process: Exploring conversion at 150–350°C over different acid catalysts

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Acid catalyzed conversion of durene by isomerization, disproportionation, and transalkylation is of interest to the development of a methanol‐to‐jet process to reduce the amount of durene in the kerosene. It was of interest to determine whether durene conversion could be performed at a temperature lower than 350°C.
Aida G. Velasco Ortiz, Risha Raju, Arno de Klerk   +2 more
wiley   +1 more source

Effect of pore ring number of zeolites on catalytic performance of Mo/Zeolite in methane aromatization under non-oxygen condition

, 2002
The catalytic behavior of Mo-based zeolite catalysts with different pore structure and size, particularly with 8 membered ring ( M R), 10 M R, coexisted 10 and 12 M R, and 12 M R, was studied in methane aromatization under the conditions of SV=1500 ml/(g.
Xu, LY, Xu, YD, Ma, D, Shu, YY, Bao, XH
core  

Microwave‐assisted catalytic pyrolysis of textile wastes: Synergistic effects and product characteristics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study examines the microwave‐assisted catalytic pyrolysis (MACP) of individual and blended textiles (cotton, polyester, nylon 6) using ZnO and a ZnO/natural zeolite catalyst. In a custom‐built microwave reactor operated at 500°C, 1 kW power, and a 15‐min residence time, textile wastes were pyrolyzed.
Peyman Alizadeh, Taylor Wright, Preksha Sharma, Xiaotao Bi   +3 more
wiley   +1 more source

A review on the catalytic pyrolysis of lipids to produce alternative aromatic hydrocarbons: Synthesis of hierarchically porous zeolites and aromatization mechanism

Circular Economy
Catalytic pyrolysis of non-edible lipids to produce alternative aromatic hydrocarbons is an important strategy to reduce CO2 emission in the petrochemical industry, which is hindered by coking and quick deactivation of zeolites.
Pengye Song, Shaojie Guo, Menghao Zuo, Xin Wang, Huiyu Qiu, Boxiong Shen   +5 more
doaj   +1 more source

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou   +4 more
wiley   +1 more source

1,1‐Disubstituted Vinylbromides: Versatile Building Blocks for the Synthesis of Nitrogen‐Containing Heterocycles

European Journal of Organic Chemistry, EarlyView.
1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer, Jun Fang, Chonghuo Liu, Guillaume Lefèvre, Gérard Guillamot, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +6 more
wiley   +1 more source

Oxidative-Coupling-Assisted Methane Aromatization: A Simulation Study

, 2019
This study simulates a high-temperature reaction in a plug-flow reactor (PFR) for the aromatization of methane via oxidative coupling of methane (OCM) using a state-of-the-art gas-phase chemical kinetic mechanism. Benzene is formed from a methane–oxygen (
Tatsuya Shinagawa (1410598), Duanxing Li, Bhavin Siritanaratkul, Kazuhiro Takanabe, S. Mani Sarathy (1234617), Walaa S. Baslyman (8083271), S. Mani Sarathy, Kazuhiro Takanabe (1308525), Walaa S. Baslyman, Duanxing Li (732830), Bhavin Siritanaratkul (2176154), Tatsuya Shinagawa   +11 more
core   +1 more source