Methane aromatization
WebA comparison of Mo/HZSM-5 and Mo/Silicalite-1 demonstrates that aromatization of methane is an intrinsic ability of molybdenum carbides dispersed in the 10-membered-ring micropores of MFI zeolite. Thus, one important role of the Brønsted acid sites is to promote the dispersion of the Mo oxide precursor and, accordingly, the active Mo carbide phase … Web23 apr. 2002 · Methane aromatization was evaluated under two sets of conditions: (i) without hydrogen permeation in a fixed-bed conventional catalytic reactor (CR) and (ii) with hydrogen permeation in a catalytic membrane reactor (CMR). In CR mode, the catalyst exhibited remarkable stability with no significant deactivation for 24 h on stream.
Methane aromatization
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Web2 jul. 2024 · To secure future supply of aromatics, methane is a commercially interesting alternative feedstock. Direct conversion of methane into aromatics combines the … Web14 feb. 2024 · Methane aromatization is a promising technology for the transformation of natural gas into liquid products, but suffers from the problem of catalyst …
Web18 aug. 2024 · Gas-to-liquid (GTL) processes exist which can convert the feed to liquid products which can be more easily transported, although there are process constraints due to the need for deployment in remote locations, and several are being commercialized. 1 One such process, direct methane aromatization (DMA), produces significant amounts … Web31 aug. 1999 · Molybdenum ions are necessary in the activation of methane. High benzene yields of around 7% are obtained with a selectivity of more than 96% at 973 K over a 2 …
Web18 mei 2015 · Non-oxidative methane aromatization is an attractive direct route for producing higher hydrocarbons. It is highly selective to benzene despite the low … Web27 mei 2008 · Understanding Methane Aromatization on a Zn-Modified High-Silica Zeolite ... It takes two: A high level of conversion of 13 C atoms of methane into the products of methane/propane coaromatization on zeolite Zn/H-BEA has been demonstrated by 13 C solid-state NMR spectroscopic analysis and GC-MS.
WebThis 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 …
WebFor methane transformation to benzene on Mo/HZSM-5, the conversion of only 11 % was reached at 973 K. 2 At the same time, the conversion of methane was reported to be 10–45 % at 673 K for methane co-aromatization with higher alkane, e. g., propane, on Ga and Zn containing zeolites. 3 The possibility of methane involvement in aromatization with … ap 公司的人才压力Web9 okt. 2024 · For the methane dehydroaromatization (MDA) over the Mo/HZSM-5 catalyst, a two-step mechanism has been proposed. Methane first converts to C2 hydrocarbons on … ap 9200 轉接座 330 碟盤內盤Web4 mrt. 2024 · The catalytic methane aromatization (CMA) via the non-oxidative approach is increasingly becoming an interesting process for natural gas, shale gas and biogas valorization. However, the design of catalytic materials that could produce very high methane conversion and aromatics selectivity at affordable stability is still difficult. We … ap 下行丢包率高Web1 sep. 2024 · Direct methane conversion in non-oxidative environment is one of the lucrative process to produce valuable aromatics. Different metals loaded (Mo, W, Fe, Cr … ap 二层手工注册Web6 jan. 2024 · Abstract. Natural gas is considered to be an important energy and hydrocarbon feedstock. To overcome the harmful combustion of natural gas and … ap 下行重传率WebAbstract. The dehydrogenation and aromatization of methane on modified ZSM-5 zeolite catalysts has been studied under non-oxidizing conditions with a fixed bed continuous … ao骨科内固定Web23 apr. 2002 · Methane aromatization was evaluated under two sets of conditions: (i) without hydrogen permeation in a fixed-bed conventional catalytic reactor (CR) and (ii) … ap 分布式事务