Life cycle assessment of typical methanol production routes: The environmental impacts analysis and power optimization

Zhuo, Chen; Shen, Qun; Sun, Nannan; Wei, Wei

doi:10.1016/j.jclepro.2019.02.101

Cited by 78 publications

(30 citation statements)

References 23 publications

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“…What needs illustration is that the transportation of feedstock and auxiliary materials is excluded from the scope of this study, since the manufacturing plant is a pithead plant in all the cases. This simplified method has also been reported in other literatures 24,25 . All the relevant energy (electricity, heat, etc.)…”

Section: Methodsmentioning

confidence: 73%

LCA comparison analysis for two types of H ₂ carriers: Methanol and ammonia

Zhu

Wang

et al. 2022

Intl J of Energy Research

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This paper presents a comparative life cycle assessment of two types of H 2 carriers, methanol and ammonia, using GaBi 10 software. Two types of H 2 carriers that is, methanol and ammonia are compared from coal, natural gas and renewables, respectively. The full supply chain is considered in the carbon footprint evaluation, which contains production, storage, transportation, and utilization phase. The energy analysis results show that H 2 carrier produced from natural gas has higher energy efficiency than that from renewables, which can be attributed to the high energy consumption during H 2 generation in the latter. Carbon footprint evaluation indicates that solar PV-based ammonia production route has the lowest GWP in all scenarios, with a value of 43.9 g of CO 2 -Equation MJ À1 of ammonia. In addition, electricity has been found as the key factor affecting GHG emissions in the routes of fuels produced from renewable H 2 through sensitivity analysis. By optimizing electricity generation and expanding the carbon capture scale of power plant, the GHG emissions level of CCU-based methanol production route and solar PVbased ammonia production route can be further reduced.

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Section: Methodsmentioning

confidence: 73%

LCA comparison analysis for two types of H ₂ carriers: Methanol and ammonia

Zhu

Wang

et al. 2022

Intl J of Energy Research

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“…Methanol feedstock is derived from coal in this work. The environmental impacts of feedstock acquisitions are obtained according to refs and , and the detailed parameters are presented in Table S5. The environmental impacts of aromatization and product separation include emissions generated by electricity, steam, and fired heat.…”

Section: Resultsmentioning

confidence: 99%

Integration of Methanol Aromatization with Light Hydrocarbon Aromatization toward Increasing Aromatic Yields: Conceptual Process Designs and Comparative Analysis

Zhang

Yang

Feng

et al. 2020

ACS Sustainable Chem. Eng.

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Methanol aromatization occurs with considerable byproducts of light hydrocarbons, resulting in a low yield of benzene, toluene, and xylene (BTX). This work proposes two novel process designs by integrating methanol aromatization with light hydrocarbon aromatization to increase the BTX yield so as to increase profitability and sustainability. For a comprehensive analysis, detailed process simulation models are developed in Aspen HYSYS for the two integrated processes with C 3 −C 5 hydrocarbon single-pass conversions of 35, 55, 75, and 95%. On this basis, technoeconomic analysis and life cycle assessment are conducted for eight cases to systematically compare their profitability and sustainability measured by the net present value and greenhouse gas emissions, respectively. Advantages of the two integrated designs over the nonintegrated methanol to aromatics design are also explored. The results show that integrating light hydrocarbon aromatization with methanol aromatization can significantly increase the BTX yield and net present value by over 49 and 204%, respectively. Besides, producing BTX from the two integrated designs can lower greenhouse gas emissions by 9.87−15.20%. This study also finds that preseparation of the light hydrocarbon aromatization product shows better profitable and sustainable performances than direct coprocessing of the two aromatization products.

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“…4b it is observed that electricity usage and methanol production are primary processes that cause the impact on the above-said categories. It is to be noted that in this study, methanol production is from natural gas, which is called the greener route (Chen et al 2019).…”

Section: Fig3 Characterization Of Emissions In Mb Production Using the Ctgt Approachmentioning

confidence: 96%

“…4 It has been studied that MB predominantly effects on ozone layer depletion. 5,6 The amount of MB produced has been regulated because of its potential to cause ozone layer depletion. Countries such as the United States have completely phased it out since 2005 in compliance with the Montreal Protocol on constituents that result in ozone layer depletion (OLD) and also under the Clean Air Act (CAA).…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Methyl Bromide Production and Utilization: Cradle to Grave Analysis

Manjare¹,

Shanbag²

2021

Preprint

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Methyl bromide is an effective and useful insecticide. It has ability to enter rapidly into materials at room temperature & pressure. Nowadays, it is primarily used for container fumigation purposes. However, exposure to it causes serious health-related issues. It is also one of the ozone-depleting substances. In this work, “cradle to gate” and “cradle to grave” approaches are considered to carry out a life cycle assessment of methyl bromide production. SimaPro software with the IMPACT 2002+ method is used to compute the results. From the results of cradle to gate approach, it is inferred that major emissions are due to usage of plant utilities and methanol production process which have a substantial effect on the atmosphere. From the results of cradle to grave approach, it is noted that application of methyl bromide causes significant environmental damage particularly to ozone layer followed by non-carcinogen.

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Life cycle assessment of typical methanol production routes: The environmental impacts analysis and power optimization

Cited by 78 publications

References 23 publications

LCA comparison analysis for two types of H ₂ carriers: Methanol and ammonia

LCA comparison analysis for two types of H ₂ carriers: Methanol and ammonia

Integration of Methanol Aromatization with Light Hydrocarbon Aromatization toward Increasing Aromatic Yields: Conceptual Process Designs and Comparative Analysis

Life Cycle Assessment of Methyl Bromide Production and Utilization: Cradle to Grave Analysis

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Life cycle assessment of typical methanol production routes: The environmental impacts analysis and power optimization

Cited by 78 publications

References 23 publications

LCA comparison analysis for two types of H 2 carriers: Methanol and ammonia

LCA comparison analysis for two types of H 2 carriers: Methanol and ammonia

Integration of Methanol Aromatization with Light Hydrocarbon Aromatization toward Increasing Aromatic Yields: Conceptual Process Designs and Comparative Analysis

Life Cycle Assessment of Methyl Bromide Production and Utilization: Cradle to Grave Analysis

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LCA comparison analysis for two types of H ₂ carriers: Methanol and ammonia

LCA comparison analysis for two types of H ₂ carriers: Methanol and ammonia