نتایج جستجو برای: methanol to propylene

تعداد نتایج: 10626131  

Traditional systems for olefin/paraffin separation, like low-temperature distillation, are expensive and very energy consuming, and therefore, alternative separation methods are desired. Facilitated transport membranes are new tools for this separation to be substituted in large scale separation of olefin-paraffin mixtures. To design a membrane process for olefin-paraffin separation, equilibriu...

Journal: :Fuel Processing Technology 2022

Different acid catalysts (silicoaluminophosphates (SAPOs) -34, −18, and − 11, HZSM-5 zeolite) were tested as components of In2O3-ZrO2/acid tandem in the direct synthesis light olefins by hydrogenation CO2, CO their mixture. The conversion yield selectivity evidence that presence large amount strongly acidic sites SAPO-34 favors extent reaction mechanism with methanol intermediate, minimizing se...

Journal: :Chinese Journal of Catalysis 2021

In this work, we show for the first time that high-silica zeolites (MFI, TON, MTT, and *MRE) could be synthesized from a combined strategy of both zeolite seeding alcohol filling in absence organic structure-directing agents (OSDAs). High-silica ZSM-5 with Si/Al ratios ranging 38 to 240 (TF-Al-ZSM-5) via route. The key success technique was employment an aluminosilicate precursor fully 4-coordi...

Journal: :Computers & Chemical Engineering 2021

We propose a novel iterative procedure to generate hybrid models (HMs) within an optimization framework solve design problems. HMs are based on first principle and surrogate (SMs) they may represent potential plant units embedded superstructure. initial SMs with simple algebraic regression refine them by adding Gaussian Radial Basis Functions in three steps: SM refinement, domain exploration, a...

Journal: :Physical chemistry chemical physics : PCCP 2017
Yoan M Delavoux Mark Gilmore Martin P Atkins Małgorzata Swadźba-Kwaśny John D Holbrey

Neutron diffraction with isotopic substitution has been used to investigate the liquid structures of propylene carbonate and glycerol carbonate. C-HO[double bond, length as m-dash]C hydrogen-bonding motifs dominate the local structure of propylene carbonate, giving rise to the formation of head-to-tail correlated chains of molecules. In contrast, glycerol carbonate exhibits a more disordered st...

Journal: :Journal of The Japan Petroleum Institute 1988

Journal: :The journal of physical chemistry. A 2008
Xibin Gu Fangtong Zhang Ralf I Kaiser

Crossed molecular beams experiments were utilized to explore the chemical reaction dynamics of ground-state cyano radicals, CN(X(2)Sigma(+)), with propylene (CH3CHCH2) together with two d3-isotopologues (CD3CHCH2, CH3CDCD2) as potential pathways to form organic nitriles under single collision conditions in the atmosphere of Saturn's moon Titan and in the interstellar medium. On the basis of the...

2008
Chunli Zhao Israel E. Wachs

The selective oxidation of propylene to acrolein was investigated over a well-defined supported V2O5/Nb2O5 catalyst, containing a surface vanadia monolayer, with combined operando Raman/IR/MS, temperature programmed surface reaction (TPSR) spectroscopy and isotopically labeled reactants (O2 and C3D6). The dissociative chemisorption of propylene on the catalyst forms the surface allyl (H2CdCHCH2...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید