Production of Light Olefins from Biosyngas by Two-stage Catalytic Conversion Process via Dimethyl Ether

Background: Ethylene, propylene, and butylene as light olefins are the most important intermediates in the petrochemical industry worldwide. Methanol to olefins (MTO) process is a new technology based on catalytic cracking to produce ethylene and propylene from methanol. Aims and Objective: This study aims to simulate the process of producing ethylene from methanol by using Aspen HYSYS software from the initial design to the improved design. Methods: Ethylene is produced in a two-step reaction. In an equilibrium reactor, the methanol is converted to dimethyl ether by an equilibrium reaction. The conversion of the produced dimethyl ether to ethylene is done in a conversion reactor. Changes have been made to improve the conditions and get closer to the actual process design done in the industry. The plug flow reactor has been replaced by the equilibrium reactor, and the distillation column was employed to separate the dimethyl ether produced from the reactor. Result and Conclusion: The effect of the various parameters on the ethylene production was investigated. Eventually, ethylene is

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Dimethyl Ether Conversion to Olefins over the SAPO-34/ZrO2 Catalysts: Effect of the ZrO2 Supporter

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.347-353.3681 ◽

2011 ◽

Vol 347-353 ◽

pp. 3681-3684 ◽

Cited By ~ 1

Author(s):

Young Ho Kim ◽

Su Gyung Lee ◽

Byoung Kwan Yoo ◽

Han Sol Je ◽

Chu Sik Park

Keyword(s):

Physicochemical Properties ◽

Dimethyl Ether ◽

Fixed Bed ◽

Fixed Bed Reactor ◽

Coke Deposition ◽

Light Olefins ◽

Similar Activity ◽

Dimethyl Ether Conversion ◽

Zro2 Catalyst ◽

Catalyst Lifetime

A SAPO-34 catalyst is well known to be one of the best catalysts for DME to olefins (DTO) reaction. Main products of the reaction were light olefins such as ethylene, propylene and butenes. However, the main problem is rapid deactivation of the SAPO-34 catalyst due to coke deposition during DTO reaction. In this study, various SAPO-34/ZrO2 catalysts added with ZrO2 were prepared for improving the lifetime and their physicochemical properties have been characterized by XRD and SEM. The DTO reaction over various SAPO-34/ZrO2 catalysts was carried out using a fixed bed reactor. All SAPO-34/ZrO2 catalysts showed similar activity and selectivity in the DTO reaction. The SAPO-34(9wt%)/ZrO2 catalyst was showed the best performance for the catalyst lifetime.

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SELECTIVE SYNTHESIS OF LIGHT OLEFINS FROM DIMETHYL ETHER OVER ACIDIC SALTS OF H3PW12O40WITH 1,3,5-TRIAZINE

Chemistry Letters ◽

10.1246/cl.1982.1275 ◽

1982 ◽

Vol 11 (8) ◽

pp. 1275-1276 ◽

Cited By ~ 5

Author(s):

Takuo Hibi ◽

Toshio Okuhara ◽

Makoto Misono ◽

Yukio Yoneda

Keyword(s):

Dimethyl Ether ◽

Light Olefins ◽

Selective Synthesis

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Effect of magnesium on the catalytic properties of polymetallic zeolite catalysts for conversion of dimethyl ether to light olefins

Microporous and Mesoporous Materials ◽

10.1016/j.micromeso.2020.110087 ◽

2020 ◽

Vol 298 ◽

pp. 110087 ◽

Cited By ~ 1

Author(s):

N.V. Kolesnichenko ◽

Е.N. Khivrich ◽

T.K. Obukhova ◽

Т.I. Batova ◽

G.N. Bondarenko

Keyword(s):

Dimethyl Ether ◽

Catalytic Properties ◽

Zeolite Catalysts ◽

Light Olefins

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Comparison and assessment of zeolite catalysts performance dimethyl ether and light olefins production through methanol: a review

Reviews in Inorganic Chemistry ◽

10.1515/revic-2019-0001 ◽

2019 ◽

Vol 39 (3) ◽

pp. 157-177 ◽

Cited By ~ 12

Author(s):

Ehsan Kianfar

Keyword(s):

Dimethyl Ether ◽

Raw Materials ◽

Fixed Bed ◽

Value Added ◽

Zeolite Catalysts ◽

Present Review ◽

Light Olefins ◽

Light Olefin ◽

Production Methods ◽

Olefin Production

AbstractThe present review focuses on a comparison and assessment of zeolite catalyst performance of dimethyl ether and light olefin production through methanol. Dimethyl ether is a clean fuel which needs diverse processes to be produced. Methanol to dimethyl ether is a very novel process which offers considerable advantages versus additional processes for the production of dimethyl ether. The corresponding fixed-bed reactors compose the most important section of such a process. Production of dimethyl ether by the mentioned process is of high importance since it can be catalytically transferred to a substance with the value of propylene. Furthermore, in case of capability to transfer low-purity methanol into dimethyl ether, less expensive methanol can be consequently achieved with higher value added. In the petrochemical industry, light olefins, for example, ethylene and propylene, can be used as raw materials for the production of polyolefin. The present review aims to produce dimethyl ether in order to reach olefin substances, initially conducting a compressive assessment on production methods of olefin substances.

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Kinetics of methanol to olefins over AlPO4-bound ZSM-5 extrudates in a two-stage unit with dimethyl ether pre-reactor

Microporous and Mesoporous Materials ◽

10.1016/j.micromeso.2012.07.012 ◽

2012 ◽

Vol 164 ◽

pp. 172-181 ◽

Cited By ~ 19

Author(s):

Markus Menges ◽

Bettina Kraushaar-Czarnetzki

Keyword(s):

Dimethyl Ether ◽

Two Stage ◽

Kinetics Of

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Effect of Some Technological Parameters on the Conversion of Dimethyl Ether to Light Olefins in a Slurry Reactor

Russian Journal of Applied Chemistry ◽

10.1134/s107042721811006x ◽

2018 ◽

Vol 91 (11) ◽

pp. 1773-1778 ◽

Cited By ~ 1

Author(s):

N. V. Kolesnichenko ◽

N. N. Ezhova ◽

A. N. Stashenko ◽

A. E. Kuz’min ◽

O. V. Yashina ◽

...

Keyword(s):

Dimethyl Ether ◽

Slurry Reactor ◽

Light Olefins ◽

Technological Parameters

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Reaction Characteristic of MeAPSO-34 (Me=Mn, Co) Catalysts for Olefins Production from Dimethyl Ether

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.550-553.416 ◽

2012 ◽

Vol 550-553 ◽

pp. 416-419

Author(s):

Young Ho Kim ◽

Su Gyung Lee ◽

Eun Jee Kang ◽

Hyo Sub Kim ◽

Chu Sik Park

Keyword(s):

Dimethyl Ether ◽

Strong Acid ◽

Acid Sites ◽

Coke Deposition ◽

Light Olefins ◽

Co Catalysts ◽

Strong Acid Sites ◽

Reaction Characteristic ◽

Catalyst Lifetime

In DME to olefins (DTO) reaction, SAPO-34 catalyst with CHA structure is well known to be one of the catalysts with good performance. However, the SAPO-34 catalyst is easily deactivated due to coke deposition during DTO reaction. In this study, MeAPSO-34 catalysts (Me=Mn, Co) were prepared for the increase of the catalyst lifetime and their properties have been characterized by XRD and SEM. The DTO reaction was carried out over the MeAPSO-34 catalysts, and the results were compared with the SAPO-34 catalyst. The lifetime of MeAPSO-34 catalysts with high DME conversion and selectivity of light olefins was prolonged than that of the SAPO-34 catalyst. It may be concluded that the decrease of strong acid sites, which were responsible for the formation of coke, affect on the lifetime of the MeAPSO-34 catalysts. In addition, the CoAPSO-34 catalyst with a Co additive showed the best performance in terms of the catalytic lifetime and the selectivity to light olefins.

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