Results 21 to 30 of about 1,552 (162)

Multi-Output Soft Sensor with a Multivariate Filter That Predicts Errors Applied to an Industrial Reactive Distillation Process

open access: yesMathematics, 2021
The paper deals with the problem of developing a multi-output soft sensor for the industrial reactive distillation process of methyl tert-butyl ether production.
Vladimir Klimchenko   +3 more
doaj   +1 more source

Methyl-Tert-Butyl-Ether Synthesis Reactor Modelling and Optimization Using an Aspen Custom Modeler

open access: yesHungarian Journal of Industry and Chemistry, 2017
A pseudo-homogeneous model of methyl-tert-butyl-ether (MTBE) synthesis in a multi-tubular packed-bed reactor has been developed using an Aspen Custom Modeler (ACM) for selecting optimum operating strategies, for the maximization and enhancement of MTBE ...
Nawaz Zeeshan
doaj   +1 more source

Modeling and simulation of isobutylene polymerization in gas-liquid-solid circulating fluidized bed reactor

open access: yesInternational Journal of Thermofluids
Methyl tert‑butyl ether (MTBE) was widely utilized as a standard additive in high-octane gasoline due to its ability to improve combustion efficiency and provide effective knock resistance. However, its extensive use resulted in significant environmental
Nayef Ghasem
doaj   +1 more source

Effect of Si/Al ratio of high-silica HZSM-5 catalysts on the prins condensation of isobutylene and formaldehyde to isoprene

open access: yesHeliyon, 2019
A series of HZSM-5 catalysts with different Si/Al ratio were prepared and characterized with various characteristic methods XRD, BET, NH3-TPD, FT-IR spectra of adsorbed pyridine, etc.
Xue Yu, Bing Liu, Yuewei Zhang
doaj   +1 more source

Oxidative dehydrogenation of isobutane over titanium pyrophosphate catalyst [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
The catalytic properties of titanium pyrophosphate in the oxidative dehydrogenation of isobutane to isobutylene were investigated in the 400 – 550 ºC temperature range. Asignificant change of the product distribution and of the apparent activation energy
Marcu Ioan-Cezar   +2 more
doaj   +1 more source

Polymerization of Isobutylene in a Rotating Packed Bed Reactor: Experimental and Modeling Studies

open access: yesApplied Sciences, 2021
Polymerization of isobutylene (IB) for synthesizing highly reactive polyisobutylene (HRPIB) is characterized by a complicated fast intrinsic reaction rate; therefore, the features of its products exhibit a strong dependence on mixing efficiency.
Wenhui Hou   +6 more
doaj   +1 more source

Conductive thermoplastic vulcanizates based on carbon black-filled bromo-isobutylene-isoprene rubber (BIIR)/polypropylene (PP)

open access: yesReviews on Advanced Materials Science, 2021
Conductive elastomer materials based on carbon black (CB) filled bromo-isobutylene-isoprene rubber (BIIR)/polypropylene (PP) thermoplastic vulcanizate (TPV) were prepared by two step method and one step method.
Huang Yunyun   +3 more
doaj   +1 more source

Production of middle distillates through olefin oligomerization using ZSM‐5 as a catalyst

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The global transportation sector relies heavily on gasoline (C5–C12) and diesel (C11–C24), which together account for approximately 60% of its energy needs. Driven by rapid industrialization and urbanization, diesel consumption is outpacing gasoline, with projections estimating global demand by 2035 at 27 million barrels per day for gasoline ...
Thembekile Hoyi   +3 more
wiley   +1 more source

Mono‐ and Bivalent Poly(iso‐butylene)‐Alanines for Drug‐Delivery of Nimodipine and Triamcinolone Acetonide

open access: yesMacromolecular Rapid Communications, EarlyView.
Mono‐ and bivalent‐, alanine‐modified poly‐iso‐butylenes, folding into beta‐sheets, were prepared by living carbocationic polymerization and subsequent endgroup modification. These PIB‐conjugates are useful as solid polymers for the drug release of triamcinolone and nimodipine. ABSTRACT Poly‐iso‐butylene (PIB) is a well known biocompatible polymer with
Philipp S. Hilgeroth   +2 more
wiley   +1 more source

Ultrasonic Treatment Enhanced Surface Modification of Titanium Oxide by Tailor-Made Surface-Active Polymers

open access: yesEurasian Chemico-Technological Journal, 2009
The surface modification of titanium dioxide in aqueous dispersions of specially tailor-made periodic acrylic acid/isobutylene copolymers, poly(acrylic acid)/polystyrene graft copolymers, and hydrophobically modified polyethyleneoxide urethane (HEUR) by ...
N. Bulychev   +4 more
doaj   +1 more source

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