Methanol-to-olefins process technology: current status and future prospects

Gogate, Makarand R.

doi:10.1080/10916466.2018.1555589

Cited by 122 publications

(79 citation statements)

References 13 publications

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“…Alternatively, light olefins can be produced by dehydrating methanol over acidic zeolite catalysts, forming DME first and subsequently olefins via repeated methylation or dealkylation of larger olefins. The MTO process was discovered in association with the methanol‐to‐gasoline (MTG) process by Mobil Oil Corporation (now Exxon Mobil) .

true normalC {normalH}_{3} normalOH ⇌ normalC {normalH}_{3} normalOC {normalH}_{3} + {normalH}_{2} normalO \to {normalC}_{2} normal- {normalC}_{5} normalolefins \to normalhigher normalolefins

…”

Section: Economics Of Methanol Productionmentioning

confidence: 99%

“…Alternatively, light olefins can be produced by dehydrating methanol over acidic zeolite catalysts, forming DME first and subsequently olefins via repeated methylation or dealkylation of larger olefins. The MTO process [58][59][60] was discovered in association with the methanol-to-gasoline (MTG) process by Mobil Oil Corporation (now Exxon Mobil) [61].…”

Section: Methanol-to-olefinmentioning

confidence: 99%

Section: Economics Of Methanol Productionmentioning

confidence: 99%

“…Together with Norsk Hydro, UOP developed today's state‐of‐the‐art MTO technology . These MTO processes were developed in parallel in China at the Dalian Institute of Chemical Physics (DICP) , , with the first fixed bed pilot plant using a ZSM‐5 catalyst operating in 1993. Further research on zeolite catalysts (particularly modified SAPO catalysts) and on the scale‐up production of catalysts led the DICP to develop the DMTO (dimethyl ether/methanol‐to‐olefins) technology, which was pilot plant tested in a fluidized bed reactor in 2004.…”

Section: Economics Of Methanol Productionmentioning

confidence: 99%

“…The first MTO plant to implement this coal‐based DMTO technology started operation in 2010 in Baotou, China . Another MTO technology implementing a patented version of the SAPO 34 catalyst is the S‐MTO (Sinopec methanol‐to‐olefin) process, where the product ratio of ethylene to propylene can be adjusted in the range of 0.6–1.3 .…”

Section: Economics Of Methanol Productionmentioning

confidence: 99%

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Renewable Methanol Synthesis

2019

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Renewable methanol production is an emerging technology that bridges the gap in the shift from fossil fuel to renewable energy. Two thirds of the global emission of CO2 stems from humanity's increasing energy need from fossil fuels. Renewable energy, mainly from solar and wind energy, suffers from supply intermittency, which current grid infrastructures cannot accommodate. Excess renewable energy can be harnessed to power the electrolysis of water to produce hydrogen, which can be used in the catalytic hydrogenation of waste CO2 to produce renewable methanol. This review considers methanol production in the current context, regionally for Europe, which is dominated by Germany, and globally by China. Appropriate carbon‐based feedstock for renewable methanol production is considered, as well as state‐of‐the‐art renewable hydrogen production technologies. The economics of renewable methanol production necessitates the consideration of regionally relevant methanol derivatives. The thermodynamics, kinetics, catalytic reaction mechanism, operating conditions and reactor design are reviewed in the context of renewable methanol production to reveal the most up to date understanding.

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true normalC {normalH}_{3} normalOH ⇌ normalC {normalH}_{3} normalOC {normalH}_{3} + {normalH}_{2} normalO \to {normalC}_{2} normal- {normalC}_{5} normalolefins \to normalhigher normalolefins

…”

Section: Economics Of Methanol Productionmentioning

confidence: 99%

“…Alternatively, light olefins can be produced by dehydrating methanol over acidic zeolite catalysts, forming DME first and subsequently olefins via repeated methylation or dealkylation of larger olefins. The MTO process [58][59][60] was discovered in association with the methanol-to-gasoline (MTG) process by Mobil Oil Corporation (now Exxon Mobil) [61].…”

Section: Methanol-to-olefinmentioning

confidence: 99%

Section: Economics Of Methanol Productionmentioning

confidence: 99%

Section: Economics Of Methanol Productionmentioning

confidence: 99%

Section: Economics Of Methanol Productionmentioning

confidence: 99%

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Renewable Methanol Synthesis

2019

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Implications of Co‐Feeding Water on the Growth Mechanisms of Retained Species on a SAPO‐18 Catalyst during the Methanol‐to‐Olefins Reaction

et al. 2021

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The dynamics of retained and deactivating species in a SAPO-18 catalyst during the methanol-to-olefins reaction have been followed using a combination of ex-situ and in-situ techniques in differential and integral reactors.The retained species were analyzed using extraction, in-situ FTIR and in-situ UV-vis spectroscopies combined with online product analysis (gas chromatography and mass spectrometry). The composition of the extracted soluble species was determined using gas chromatography-mass spectrometry and that of the insoluble species using high-resolution mass spectrometry. We observe a decrease in the formation and degradation rates of retained species when co-feeding water, whereas the extent of the decreases is the same across the entire spectrum of retained molecules. This indicates that co-feeding water unselectively quenches the formation of active and deactivating species. At the same time, the catalyst has an extended lifetime when cofeeding water due to the diffusion of species (particularly olefins) out of the SAPO-18 crystals, and subsequent growth of heavy polycyclic aromatic structures that imply less deactivation. These conclusions can be extrapolated to other MTO catalysts with relatively similar pore topology such as SAPO-34 or SSZ-13 structures.

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Vergleich verschiedener Ansätze zur nachhaltigen Olefinproduktion nach dem MtO‐ und FT‐Verfahren

Kansy

Neuner

Bajohr

et al. 2022

Chemie Ingenieur Technik

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Olefine sind ein essenzieller Bestandteil der modernen organischen Chemie. Nach aktuellem Stand der Technik wird meist Rohöl als Rohstoff verwendet, welches zunächst in einer Raffinerie fraktioniert wird. Anschließend wird die Naphthafraktion einem Steamcracker zugeführt, in dem die Kohlenwasserstoffe zu den gewünschten Olefinen gecrackt werden. Zur Grundlage der Diskussion, welche alternative Wege sich zur Erzeugung von Olefinen anbieten, werden in diesem Beitrag zwei ausgewählte alternative Herstellungsprozessrouten miteinander verglichen.

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Methanol-to-olefins process technology: current status and future prospects

Cited by 122 publications

References 13 publications

Renewable Methanol Synthesis

Renewable Methanol Synthesis

Implications of Co‐Feeding Water on the Growth Mechanisms of Retained Species on a SAPO‐18 Catalyst during the Methanol‐to‐Olefins Reaction

Vergleich verschiedener Ansätze zur nachhaltigen Olefinproduktion nach dem MtO‐ und FT‐Verfahren

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