نتایج جستجو برای: methanol to olefins mto
تعداد نتایج: 10625400 فیلتر نتایج به سال:
A convenient and efficient application of heterogeneous methylrhenium trioxide (MTO) systems for the selective oxidation of lignin model compounds and lignins is reported. Environmental friendly and low-cost H2O2 was used as the oxygen atom donor. Overall, the data presented and discussed in this paper point toward the conclusion that the immobilized heterogeneous catalytic systems based on H2O...
The only licensed vaccine Mycobacterium bovis Bacillus Calmette-Guérin (BCG) cannot prevent the prevalence of tuberculosis (TB), which remains a major public health problem worldwide. A more effective TB vaccine than BCG is urgently needed. Subunit vaccine is a promising strategy, and suitable adjuvants will benefit the development of effective TB subunit vaccines. MTO, consisting of monophosph...
he U.S. Department of Housing and Urban Development’s (HUD) Moving to Opportunity for Fair Housing Demonstration, or MTO, is a large, federally funded social experiment designed to test whether improved neighborhood opportunities may significantly affect the life chances of lowincome public housing residents. This paper provides the first systematic overview of the design of the MTO and describ...
The complex trans -[Pd(COOCH3)(H2O)(PPh3)2](TsO) (I) has been synthesized by reacting trans -[Pd(COOCH3)Cl(PPh3)2] with AgTsO in methanol. It has been characterized by IR, H and P NMR spectroscopy. Crystals of trans [Pd(COOCH3)(H2O)(PPh3)2](TsO) /(CH3OH) (II) have been obtained by re-crystallization of I in methanol. The structure of the complex has been determined by X-ray analysis. It shows a...
Introduction SAPO-34 is a silicoaluminophosphate zeolite with 8-membered ring windows (~0.38nm) displaying chabazite structure. SAPO-34 is an efficient catalyst showing improved catalytic performance in reactions such as methanol conversion to olefins [1], oxidative dehydrogenation of propane [2], conversion of light alkenes [3]. Its catalytic properties are mainly attributed to its mild acidit...
The thermodynamic of the known and very effective catalytic system, hydrogen peroxide (H2O2) and methyltrioxorhenium (MTO) is studied in different solvents using UV-Visible spectroscopic method. The thermodynamic parameters (ΔG, ΔH and ΔS) for two equilibrium reactions, MTO + H2O2 ⇌ A + H2O and A + H2O2 ⇌ B.H2O (A, [MeRe(O)2(O2)]; B.H2O, [MeRe(OH2)(O)(O2)2]), are determined. The obtained free e...
The lean manufacturing system has helped many companies to improve operational performance, mainly in the automotive and electronic supply chains. Although lean manufacturing revealed to be effective for repetitive systems, some small and medium suppliers, faced with high mix and low volume production, have had difficulty to implement the lean manufacturing. The main objective of this paper is ...
The use of noble metal catalysts in homogeneous catalysis has been well established. Due to their price and limited availability, there is growing interest in the substitution of such precious metal complexes with readily available and bio-relevant catalysts. In particular, iron is a "rising star" in catalysis. Herein, we present a general and selective iron-catalyzed monoisomerization of olefi...
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