The role of Zn in the sustainable one-pot synthesis of dimethyl carbonate from carbon dioxide, methanol and propylene oxide

Liu, Ming; Konstantinova, Mariia; Negahdar, Leila; McGregor, James

doi:10.1016/j.ces.2020.116267

Cited by 11 publications

(3 citation statements)

References 33 publications

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“…It is also a benign fuel additive for gasoline and diesel due to its high‐octane mixture, low vapor pressure, and easy biodegradation 12 . Furthermore, DMC has various functional groups such as methyl, methoxyl, and carbonyl, 13 and thus is an environmentally friendly building block in many organic synthesis reactions such as methylation and carbonylation reactions. The growing demand of DMC encourages increasing pursuit of efficient and clean synthesis routes.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of dimethyl carbonate production process from CO₂ by rigorous simulation and detailed optimization

Sun,

Li,

Cao

2024

Greenhouse Gases

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The CO2‐derived dimethyl carbonate (DMC) synthesis process becomes greatly attentive but suffers high energy consumption in DMC distillation process. In this work, the DMC‐MeOH azeotropes separation process by pressure swing distillation and extractive distillation was compared, and key operating parameters, including the total number of trays and the feeding position of the mixture liquid, were optimized with the minimum total annual cost (TAC) as the objective function. On the basis of this optimization, economic evaluation of different distillation processes was conducted, and it was found that extractive distillation was more economical than pressure swing distillation. The application of the dividing‐wall distillation process upgraded by extractive distillation can significantly reduce the minimum annual total cost by 37.4% and 10.7% compared to the original pressure swing distillation and extractive distillation process, respectively. The optimization of relevant heat exchange network based on pinch technology resulted in energy consumption reduction by 27.2% and 25.9% for its hot and cold utilities, respectively. Carbon life cycle assessment (LCA) on the DMC distillation process revealed over 50% of energy as well as carbon emissions from steam consumption, whose reduction can significantly minimize CO2 emissions, energy consumption, and ultimate cost. © 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Evaluation of dimethyl carbonate production process from CO₂ by rigorous simulation and detailed optimization

Sun,

Li,

Cao

2024

Greenhouse Gases

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“…For example, Ashif H. Tamboli et al [20] synthesized a 10 wt % chitosan/ionic liquid (IL)-catalyst system with hydroxyl and amine groups as nucleophilic and carbon dioxide absorption centers, with a methanol conversion rate of 16.90% and DMC selectivity 98.72%, the catalyst has good catalytic activity, selectivity, and stability, but requires higher pressure to improve the conversion rate and yield, which is a challenge for large-scale production. Heterogeneous catalysts include many: alkali metals, transition metal hydroxides, and supported catalysts [21], such as Ming Liu et al [22] using K 2 CO 3 NaBr-ZnO catalyst system, methanol, propylene oxide, and CO 2 one-pot synthesis DMC. The addition of Zn powder improves the selectivity of DMC, but the nal selectivity is only 40.2%, which is unfavorable for production.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of dimethyl carbonate from CO2 catalyzed by spherical polymeric ionic liquid catalyst

Liu,

Li,

Xie

et al. 2023

Chem. Pap.

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Dimethyl carbonate (DMC) is widely used and nontoxic and can replace more dangerous materials such as dimethyl sulfate or methyl chloride. Spherical particle catalysts (PILs-XSS) were synthesized by suspension polymerization, which was characterized by SEM-EDS, FT-IR, TG, and BET-BJH. The characterization results showed that PILs-XSS had a speci c core structure, a certain pore size (14.3nm), and surface area size (71.5m 2 /g), and remained stable at 293.4°C. The catalyst performance was evaluated by a one-pot synthesis of dimethyl carbonate. The process conditions were optimized in detail. The optimal reaction conditions were as follows: the dosage of PILs-XSS was 2.5 wt %, the CO 2 pressure was 1.5 MPa, the reaction temperature was 100°C, the reaction time was 4 h, the molar ratio of methanol to propylene oxide (PO)was 3: 1, and the dosage of cocatalyst Na 2 CO 3 was 3 wt %. Under the optimum conditions, the conversion of PO was up to 98.8% and the yield of DMC reached 53.7%. In addition, the combined catalyst PILs-Na 2 CO 3 was easily recovered by ltration in the reaction system. After ve times of repeated use, the activity and the shape of the catalyst were almost unchanged, which meant that the catalyst had amazing mechanical strength. This study found that the transesteri cation catalyst Na 2 CO 3 not only had good transesteri cation e ciency but also promoted the reaction of CO 2 .

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“…2-Cyanopyridine (2-CP) is widely used because of its excellent dehydration performance . Many catalysts, such as ZrO 2 , − Y 2 O 3 , Me 2 SnO, SnO 2 , Al 2 O 3 , V 2 O 5 , Ga 2 O 3 , and the mixed oxides of Ce–Zr, Ce–Ti, Ce–Ca, and Ce–Zn, − have been reported for the direct synthesis of DMC to improve the catalysis performance. However, the existing catalytic synthesis systems still face the problems of catalysts that are too complex, have harsh reaction conditions, and have a low DMC yield.…”

Section: Introductionmentioning

confidence: 99%

Study of Direct Synthesis of DMC from CO₂ and Methanol on CeO₂: Theoretical Calculation and Experiment

Zhu

Liu

Yong

et al. 2022

Ind. Eng. Chem. Res.

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Rare earth metal oxides are known to have good catalytic effectiveness in the direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol. In this work, we screened ceria (CeO2) catalysts by analyzing their capacity for CO2 adsorption. The effects of the crystal surface morphology and oxygen vacancy on the catalytic performance of the ceria catalyst were studied by using density functional theory (DFT). The results show that the (110) surface and higher oxygen vacancy content can better promote the synthesis of DMC and that the rod-shaped CeO2 catalyst has a better catalytic effect. The oxygen vacancy content on the catalyst was improved by freeze-drying and confirmed by thermogravimetric analysis, Raman spectroscopy, and electron paramagnetic resonance. The freeze-dried CeO2 (CeO2-FD) then showed a higher catalytic performance. The conversion rate of methanol and the yield of DMC were 33.95% and 584 mmol g–1cat, respectively, under mild conditions (140 °C and 1 MPa).

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The role of Zn in the sustainable one-pot synthesis of dimethyl carbonate from carbon dioxide, methanol and propylene oxide

Cited by 11 publications

References 33 publications

Evaluation of dimethyl carbonate production process from CO₂ by rigorous simulation and detailed optimization

Evaluation of dimethyl carbonate production process from CO₂ by rigorous simulation and detailed optimization

Synthesis of dimethyl carbonate from CO2 catalyzed by spherical polymeric ionic liquid catalyst

Study of Direct Synthesis of DMC from CO₂ and Methanol on CeO₂: Theoretical Calculation and Experiment

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The role of Zn in the sustainable one-pot synthesis of dimethyl carbonate from carbon dioxide, methanol and propylene oxide

Cited by 11 publications

References 33 publications

Evaluation of dimethyl carbonate production process from CO2 by rigorous simulation and detailed optimization

Evaluation of dimethyl carbonate production process from CO2 by rigorous simulation and detailed optimization

Synthesis of dimethyl carbonate from CO2 catalyzed by spherical polymeric ionic liquid catalyst

Study of Direct Synthesis of DMC from CO2 and Methanol on CeO2: Theoretical Calculation and Experiment

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Evaluation of dimethyl carbonate production process from CO₂ by rigorous simulation and detailed optimization

Evaluation of dimethyl carbonate production process from CO₂ by rigorous simulation and detailed optimization

Study of Direct Synthesis of DMC from CO₂ and Methanol on CeO₂: Theoretical Calculation and Experiment