Abstract
Methane aromatization is a promising technology for the transformation of natural gas to liquid products, but suffers the problem of catalyst deactivation by coke. A Two-zone fluidized bed reactor has been proposed as a tool to counteract the catalyst deactivation, by providing continuous catalyst regeneration in the same vessel where the main reaction is carried out. This work shows the effect of the main operating conditions (carburization temperature, reaction temperature, carburization time, nature of regenerating agent and feed flow and height of the hydrocarbon entry point) .
Highlights
A problem for the use of methane from remote sources is the transportation from the reservoir, because gas pipelines are only functional for relatively short distances
Since many deposits of natural gas (NG) are in remote off-shore locations, in the mid-1990s investors started projects that envisioned the building of floating liquid natural gas (LNG) facilities (Pospíšila et al, 2019)
The comparison of a conventional fluidized bed and the Two Zone Fluidized Bed Reactor (TZFBR) for methane aromatization was made in a previous study (Gimeno et al, 2010), where we found that a stable operation was achieved
Summary
A problem for the use of methane from remote sources is the transportation from the reservoir, because gas pipelines are only functional for relatively short distances. When considering all steps (production liquefaction, transport and regasification) the cost of liquefying and regasification represents about 40% of the process To avoid these costs, gas transport in the form liquid substances at room temperature has been proposed. Gas transport in the form liquid substances at room temperature has been proposed These liquids are obtained with processes known as “gas to liquid” (GTL), which transform methane, through chemical reactions, into a liquid fuel. Achieving a technologically viable process involves improvements in the catalyst, increases in conversions and yields and stability of the process Most of these investigations are collected in three reviews, those of Ma et al (2013), Mamonov et al (2013), and (Majhi et al, 2013). They show the large amount of research, and interest, in the methane aromatization reaction
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