With decreasing oil resource, the syngas has become an important mid-hub for connecting the upstream resources including coal, biomass, natural gas and etc. with the downstream products such as olefins, liquid fuels, and fine chemicals and oxygenates. The direct conversion of syngas to light olefins is one of the most challenging subjects in the national energy strategy. It is considered as a new attractive route for producing light olefins from non-petroleum resources, owing to its process simplicity and low energy consumption compared to the indirect route. However, the obtained success in the direct conversion of syngas to light olefins still keep in laboratory level because of the difficult improvement of catalytic activity and selectivity to light olefins simultaneously. There are two main pathways for the direct conversion of syngas to light olefins, including Fischer-Tropsch to olefins (FTO) reaction and bifunctional catalysis using composite catalysts such as Oxide-Zeolite (OX-ZEO). In this paper, the advances in recent five years made in the catalysts for the direct conversion of syngas to light olefins via these two pathways were reviewed. The ideas about the research and development of high-efficient catalysts in the future were also provided.
GUO Hai-jun
,
ZHANG Hai-rong
,
WANG Can
,
TANG Wei-chao
,
PENG Fen
,
XIONG Lian
,
CHEN Pei-li
,
CHEN Xin-de
. Advances in Catalysts for One-Step Direct Conversion of Syngas to Light Olefins[J]. Advances in New and Renewable Energy, 2017
, 5(5)
: 358
-364
.
DOI: 10.3969/j.issn.2095-560X.2017.05.006
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