Deactivation of zeolites and zeotypes in methanol-to-hydrocarbons catalysis: Mechanisms and circumvention
Conspectus Solid catalysts deployed in industrial processes often undergo deactivation,
requiring frequent replacement or regeneration to recover the loss in activity. Regeneration …
requiring frequent replacement or regeneration to recover the loss in activity. Regeneration …
Lifetime improvement in methanol-to-olefins catalysis over chabazite materials by high-pressure H2 co-feeds
Mitigating catalyst deactivation in the industrially deployed process of methanol-to-olefins
conversion over HSAPO-34 is a critical challenge. Here, we demonstrate that lifetime in …
conversion over HSAPO-34 is a critical challenge. Here, we demonstrate that lifetime in …
Critical role of formaldehyde during methanol conversion to hydrocarbons
Formaldehyde is an important intermediate product in the catalytic conversion of methanol to
olefins (MTO). Here we show that formaldehyde is present during MTO with an average …
olefins (MTO). Here we show that formaldehyde is present during MTO with an average …
In situ mass spectrometric analysis on zeolite-catalyzed pyrolysis of furanic compounds: The role of reactive intermediates
Reactive intermediates are essential for determining the reaction mechanism of biomass
pyrolysis. However, these short-life compounds are rarely reported because they are difficult …
pyrolysis. However, these short-life compounds are rarely reported because they are difficult …
Achieving a superlong lifetime in the zeolite-catalyzed MTO reaction under high pressure: synergistic effect of hydrogen and water
X Zhao, J Li, P Tian, L Wang, X Li, S Lin, X Guo… - ACS …, 2019 - ACS Publications
Zeolites are usually considered to be acid catalysts, which are prone to deactivation due to
the coke deposition in the hydrocarbon conversions such as methanol-to-olefins (MTO) …
the coke deposition in the hydrocarbon conversions such as methanol-to-olefins (MTO) …
Core-shell and egg-shell zeolite catalysts for enhanced hydrocarbon processing
Develo** structure-performance relationships with the underlying goal of optimizing
known zeolite catalysts involves the manipulation of their physicochemical properties. Here …
known zeolite catalysts involves the manipulation of their physicochemical properties. Here …
MAPO-18 Catalysts for the Methanol to Olefins Process: Influence of Catalyst Acidity in a High-Pressure Syngas (CO and H2) Environment
The transition from integrated petrochemical complexes toward decentralized chemical
plants utilizing distributed feedstocks calls for simpler downstream unit operations. Less …
plants utilizing distributed feedstocks calls for simpler downstream unit operations. Less …
Metrics of performance relevant in methanol-to-hydrocarbons catalysis
Mechanistic interpretation of heterogeneous catalytic systems typically requires assessment
of reaction rates and selectivity in the absence of heat and mass transport limitations …
of reaction rates and selectivity in the absence of heat and mass transport limitations …
Effects of Acid Sites and Formaldehyde Decomposition on the Catalyst Lifetime for Methanol-to-Olefins over Ca-Modified HZSM-5
J Luo, T **ao, W Wen, J Bao, C Liu, Y Pan - ACS Catalysis, 2024 - ACS Publications
The pursuit for higher light olefin selectivity and extended catalyst lifetime has been a hot
topic in the methanol-to-olefins (MTO) process. The incorporation of Ca in HZSM-5 (Ca …
topic in the methanol-to-olefins (MTO) process. The incorporation of Ca in HZSM-5 (Ca …