Kinetics of the Ag/KNO3/CaCO3 Catalyzed Aerobic Propylene Epoxidation and Effects of CO2
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DOI: 10.1002/cctc.201902280
Abstract: In this contribution we investigate the aerobic propylene epoxidation over a Ag/KNO3/CaCO3 catalyst. The catalytic performance and surface speciation of the catalyst depends on the concentrations of feed modifiers such as ethyl chloride and nitric… read more here.
Keywords: aerobic propylene; propylene epoxidation; kinetics kno3; kno3 caco3 ... See more keywords
Determination of zinc glutarate complexes synthesis factors affecting production of propylene carbonate from carbon dioxide and propylene oxide
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2017.06.075
Abstract: Abstract The purpose of this research was to investigate the effects of catalyst preparation temperature and time, and catalyst size in relation to the performance of the zinc glutarate (ZnGA) catalyst and the polypropylene carbonate… read more here.
Keywords: catalyst; temperature; zinc glutarate; propylene oxide ... See more keywords
Liquid-phase epoxidation of propylene with molecular oxygen by chloride manganese meso-tetraphenylporphyrins
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Journal of Chemical Engineering"
DOI: 10.1016/j.cjche.2021.08.006
Abstract: Abstract Propylene molecule owns two active sites, the direct epoxidation of propylene by dioxygen is still a challenge due to the limitation of selectivity. In this work, the direct liquid-phase propylene aerobic epoxidation protocol by… read more here.
Keywords: liquid phase; manganese meso; propylene; epoxidation ... See more keywords
Selective adsorption of ethane, ethylene, propane, and propylene in flammable gas mixtures on different coal samples and implications for fire hazard assessments
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DOI: 10.1016/j.coal.2018.12.003
Abstract: Abstract Sorption studies of gaseous mixtures of ethane, ethylene, propane, and propylene allowed us to obtain a better understanding of flammable gas behavior during flow through a coal seam. The dynamic sorption method was used… read more here.
Keywords: gas; sorption; propylene; flammable gas ... See more keywords
Influence on properties and phase structure of single gas-phase reactor made impact polypropylene copolymers
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DOI: 10.1016/j.eurpolymj.2018.07.015
Abstract: Abstract Impact polypropylene copolymers (IPC) are materials important for many commercial applications. These materials are usually synthetized by different methods involving two consecutive reactions: in liquid, gas or liquid-gas phase. This work presents a method… read more here.
Keywords: phase; impact polypropylene; gas; gas phase ... See more keywords
Thermo-responsive shape memory effect in isotactic propylene/1-butene copolymers
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DOI: 10.1016/j.eurpolymj.2020.110030
Abstract: Abstract This paper reported a thermo-responsive shape memory effect in common isotactic propylene/1-butene copolymer (iPPBu) synthesized by Ziegler-Natta catalyst. The deformation principle in the copolymer was cold deformation, and the recovery temperature was around 60 °C,… read more here.
Keywords: propylene; memory; shape memory; memory effect ... See more keywords
Tuning the ethylene-to-propylene ratio in methanol-to-olefins catalysis on window-cage type zeolites
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Catalysis"
DOI: 10.1016/j.jcat.2021.01.015
Abstract: Abstract Decreasing inlet methanol partial pressure and methanol space velocity during methanol-to-olefins (MTO) catalysis on HSAPO-34, HSSZ-13, and HSSZ-39 increases cumulative ethylene-to-propylene ratio by a factor of ~2.3x, ~2.4x, and ~2.2x, respectively. The composition of… read more here.
Keywords: methanol; propylene; ethylene propylene; catalysis ... See more keywords
CO2 cycloaddition with propylene oxide to form propylene carbonate on a copper metal-organic framework: A density functional theory study
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DOI: 10.1016/j.mcat.2018.11.015
Abstract: Abstract Metal-organic frameworks (MOFs) have emerged as unique catalysts for CO2 conversion, but the catalytic mechanism remains elusive. In this study, a density functional theory (DFT) study is reported on CO2 cycloaddition with propylene oxide… read more here.
Keywords: co2 cycloaddition; propylene; study; metal organic ... See more keywords
WITHDRAWN: Aggregates of superfine ZSM-5 crystals: The effect of NaOH on the catalytic performance of methanol to propylene reaction
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DOI: 10.1016/j.micromeso.2016.10.027
Abstract: Abstract Loose aggregates of superfine ZSM-5 crystals (S-ZSM-5) were synthesized by a seed-induced method in the presence of cetyltrimethylammonium bromide (CTAB), characterized by XRD, SEM, N2 adsorption and desorption, XRF, NH3-TPD, 27Al MAS NMR, TG… read more here.
Keywords: seed; superfine zsm; aggregates superfine; zsm crystals ... See more keywords
A durable and highly selective PbO/HZSM-5 catalyst for methanol to propylene (MTP) conversion
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DOI: 10.1016/j.micromeso.2017.04.031
Abstract: Abstract A series of MOx/HZSM-5 catalysts (MOx: PbO, Sb2O3 and Bi2O3) for the catalytic conversion of methanol to propylene were prepared by a wet impregnation method using M(NO3)x (M: Pb, Sb and Bi). The catalytic… read more here.
Keywords: conversion; propylene; hzsm catalyst; catalyst ... See more keywords
Ultrathin, fine-tuned microporous coating modified 5A zeolite for propane/propylene adsorptive separation
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DOI: 10.1016/j.micromeso.2019.02.038
Abstract: Abstract Adsorptive separation of propylene from propane is very challenging because of their very similar sizes (propylene: 0.431 nm; propane: 0.446 nm) and other similar physical properties. In this study, we further explored the potential of the… read more here.
Keywords: adsorptive separation; propane; propylene; propane propylene ... See more keywords