Sustainability metrics for eco-technologies assessment, Part II. Life cycle analysis

Monteiro, Juliana Garcia Moretz‐Sohn; Araújo, Ofélia de Queiroz Fernandes; Medeiros, José Luiz de

doi:10.1007/s10098-009-0205-8

Cited by 21 publications

(25 citation statements)

References 16 publications

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“…Despite some variability on the results reported by various sources, it seems that DMC production from CO 2 via ethylene carbonate and urea transesterification routes have a lower global warming impact than fossil‐based DMC production, [64] with values between 0.45–0.77

{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(gate‐to‐gate) [123,124] and 0.86

{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(cradle‐to‐gate) [125] for the ethylene carbonate transesterification route, and between 0.34

{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(cradle‐to‐gate) [125] and 2.93

{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(gate‐to‐gate) [123] for the urea transesterification route (Table 8).…”

Section: Environmental Impacts and Benefits Of Producing The Identifimentioning

confidence: 99%

Analytical Review of Life‐Cycle Environmental Impacts of Carbon Capture and Utilization Technologies

et al. 2021

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Carbon capture and utilization (CCU) has been proposed as a sustainable alternative to produce valuable chemicals by reducing the global warming impact and depletion of fossil resources. To guarantee that CCU processes have environmental advantages over conventional production processes, thorough and systematic environmental impact analyses must be performed. Life‐Cycle Assessment (LCA) is a robust methodology that can be used to fulfil this aim. In this context, this article aims to review the life‐cycle environmental impacts of several CCU processes, focusing on the production of methanol, methane, dimethyl ether, dimethyl carbonate, propane and propene. A systematic literature review is used to collect relevant published evidence of the environmental impacts and potential benefits. An analysis of such information shows that CCU generally provides a reduction of environmental impacts, notably global warming/climate change, compared to conventional manufacturing processes of the same product. To achieve such environmental improvements, renewable energy must be used, particularly to produce hydrogen from water electrolysis. Importantly, different methodological choices are identified that are being used in the LCA studies, making results not comparable. There is a clear need to harmonize LCA methods for the analyses of CCU systems, and more importantly, to document and justify such methodological choices in the LCA report.

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{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(gate‐to‐gate) [123,124] and 0.86

{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(cradle‐to‐gate) [125] for the ethylene carbonate transesterification route, and between 0.34

{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(cradle‐to‐gate) [125] and 2.93

{normalt}_{{C O}_{2} e q} {normalt}_{D M C}^{- 1}

(gate‐to‐gate) [123] for the urea transesterification route (Table 8).…”

Section: Environmental Impacts and Benefits Of Producing The Identifimentioning

confidence: 99%

Analytical Review of Life‐Cycle Environmental Impacts of Carbon Capture and Utilization Technologies

et al. 2021

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“…process 6 ), oxidative carbonylation of MeOH 64 (e.g., EniChem process 11 ), and direct synthesis with ethylene oxide (EO) as a dehydration agent. 56 Although there are several studies on conducting LCA of the transesterification of cyclic carbonates, 16,65 oxidative carbonylation, 16,66 and also other DMC synthesis routes, 67 the values from the databases were used for more clearer comparison. In terms of the system boundary, the databases' values consider the emissions in transportation and construction processes although these are not considered in the studied process due to the lack of consideration of the process scale and the period of the production.…”

Section: Break-even Analysismentioning

confidence: 99%

Direct dimethyl carbonate synthesis from CO₂ and methanol catalyzed by CeO₂ and assisted by 2-cyanopyridine: a cradle-to-gate greenhouse gas emission study

et al. 2021

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“…However, the authors considered the transesterification of methyl carbamate and ethylene carbonate as the most sustainable, since methanol oxy-carbonylation does not involve carbon dioxide sequestration, and rejected carbonylation of methanol due to being not feasible industrially. A more detailed comparison of those two routes was accomplished by the authors using Life Cycle Analysis [83].…”

Section: Comparison Of the Routesmentioning

confidence: 99%

Review for the Direct Synthesis of Dimethyl Carbonate

et al. 2014

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This review summarizes the state-of-the-art for direct synthesis of dimethyl carbonate (DMC) from carbon dioxide and methanol. In addition, conventional and alternative processes are also discussed in order to understand the advantages and disadvantages of the direct synthesis of DMC. Furthermore, the major applications of DMC are described: solvent, fuels additive, and building block for organic synthesis. The major drawbacks of the direct synthesis of DMC are the low yield and reaction rate, mostly induced by the highly stable carbon dioxide molecules. The development of novel catalyst and strategies to enhance the DMC yield -such as dehydrating agents that remove the water from the reacting mixture -are pointed out as the key solution for this route. Therefore, the main catalysts (homogeneous and heterogeneous catalysts) used so far are presented, together with the respective operating conditions and catalyst performance. The use of different dehydrating agents to increase the DMC yield is also discussed.

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Sustainability metrics for eco-technologies assessment, Part II. Life cycle analysis

Cited by 21 publications

References 16 publications

Analytical Review of Life‐Cycle Environmental Impacts of Carbon Capture and Utilization Technologies

Analytical Review of Life‐Cycle Environmental Impacts of Carbon Capture and Utilization Technologies

Direct dimethyl carbonate synthesis from CO₂ and methanol catalyzed by CeO₂ and assisted by 2-cyanopyridine: a cradle-to-gate greenhouse gas emission study

Review for the Direct Synthesis of Dimethyl Carbonate

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Sustainability metrics for eco-technologies assessment, Part II. Life cycle analysis

Cited by 21 publications

References 16 publications

Analytical Review of Life‐Cycle Environmental Impacts of Carbon Capture and Utilization Technologies

Analytical Review of Life‐Cycle Environmental Impacts of Carbon Capture and Utilization Technologies

Direct dimethyl carbonate synthesis from CO2 and methanol catalyzed by CeO2 and assisted by 2-cyanopyridine: a cradle-to-gate greenhouse gas emission study

Review for the Direct Synthesis of Dimethyl Carbonate

Contact Info

Product

Resources

About

Direct dimethyl carbonate synthesis from CO₂ and methanol catalyzed by CeO₂ and assisted by 2-cyanopyridine: a cradle-to-gate greenhouse gas emission study