Comprehensive analysis of environmental impacts and energy consumption of biomass-to-methanol and coal-to-methanol via life cycle assessment

Liu, Yigang; Li, Guoxuan; Chen, Zhengrun; Shen, Yuanyuan; Zhang, Hongru; Wang, Shuai; Qi, Jianguang; Zhu, Zhaoyou; Wang, Yinglong; Gao, Jun

doi:10.1016/j.energy.2020.117961

Cited by 73 publications

(30 citation statements)

References 32 publications

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“…The BTM scenario considers the production of methanol from biomass gasification (straw from agricultural activities). 62 The SMR CCS scenarios consider a reference process for steam reforming of natural gas coupled with a CCS system based on CO 2 absorption with amines, followed by compression and injection in exhausted oil fields. 63 The BTH CCS scenarios produce H 2 from short-rotation poplar biomass through gasification coupled with CO 2 capture based on membranes.…”

Section: Articlementioning

confidence: 99%

“…For the BTM scenario, we use aggregated data of the biomass to methanol process. 62 Background data (LCI elementary flows) for utilities and raw materials (LCI UTI u;e;s and LCI RAW r;e;s ) were retrieved from Ecoinvent v3.5 accessed via SimaPro v9.0. 70 All data for the raw materials and utility requirements and life cycle inventories used in this study can be found in Galá n-Martín et al 60 In phase three, these LCI elementary flows (LCI c;e;s ) are converted into impacts on the control variables of the PBs by using a set of characterization models, as discussed next.…”

Section: Characterization Of Chemical Routesmentioning

confidence: 99%

“…For methanol production via biomass gasification (BTM scenario), we retrieved the unitary consumption rates of inputs from Liu et al 62 For methanol production from CO 2 hydrogenation, the unitary consumption of H 2 and CO 2 together with the electricity and heating requirements were taken from Perez-Fortes et al 21 The data for the production of H 2 via SMR CCS scenarios were sourced from Dufour et al 63 Data for H 2 production from biomass with CCS (BTH CCS scenarios) were taken from Susmozas et al, 64 and for the poplar biomass consumed by the process, the data were sourced from Gasol et al 74…”

Section: Characterization Of Chemical Routesmentioning

confidence: 99%

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Sustainability footprints of a renewable carbon transition for the petrochemical sector within planetary boundaries

et al. 2021

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Section: Articlementioning

confidence: 99%

Section: Characterization Of Chemical Routesmentioning

confidence: 99%

Section: Characterization Of Chemical Routesmentioning

confidence: 99%

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Sustainability footprints of a renewable carbon transition for the petrochemical sector within planetary boundaries

et al. 2021

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“…The transportation energy consumption and proportion are shown in Table S5 . The production of 1 ton of ethylene glycol consumes 2.48 tons of biomass, 47.6 GJ of coal, and 3.8 GJ of electricity. ,,, The schematic diagram of BtEG is shown in Figure . The biomass raw material first enters the biomass gasification (BGS) unit with 95% oxygen produced by the air separation (ASU) unit.…”

Section: Life Cycle Modelmentioning

confidence: 99%

Comparative Life Cycle Assessment of Energy Consumption, Pollutant Emission, and Cost Analysis of Coal/Oil/Biomass to Ethylene Glycol

Yang

et al. 2021

ACS Sustainable Chem. Eng.

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The industrialized coal-to-ethylene glycol (CtEG) route has become a potential competitor for the conventional oil-to-ethylene glycol (OtEG) route, and the emerging biomass-to-ethylene glycol (BtEG) route is also recognized because of its good environmental performance. In this study, life cycle assessment (LCA) is used to compare and analyze the life cycle energy consumption, pollutant emissions, and life cycle costs (LCC) of CtEG, OtEG, and BtEG routes. According to the results, the ethylene glycol production process is the main contributor to energy consumption and pollutant emissions. Compared with the OtEG route, the BtEG route has lower environmental costs but high direct production costs. The CtEG route provides a viable alternative for coal-rich and oil-deficient countries. However, as a promising production route for ethylene glycol, the CtEG route has the disadvantages of high energy consumption and high pollutant emissions, resulting in large environmental costs and not in line with the concept of sustainable development. Therefore, how to reduce energy consumption and pollutant emissions in the production process, especially carbon emissions, is an urgent problem to be solved. This research provides an important basis for improving the production of ethylene glycol and helps decision makers choose the most suitable production route for ethylene glycol based on actual conditions.

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“…In the literature, some studies have discussed the advantages of specific biofuels in terms of combustion and emissions. In particular, Ryojiro Minato [160] discussed the advantages of bio-ethanol; Liu et al [161] discussed the advantages of bio-methanol; Veza et al [162] discussed the advantages of butanol. In other studies, researchers discussed the disadvantages of biofuels [163].…”

Section: Benefits and Weaknesses Of Using Biofuels In Siementioning

confidence: 99%

State of Art of Using Biofuels in Spark Ignition Engines

Elfasakhany

2021

Energies

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Biofuels are receiving increased scientific attention, and recently different biofuels have been proposed for spark ignition engines. This paper presents the state of art of using biofuels in spark ignition engines (SIE). Different biofuels, mainly ethanol, methanol, i-butanol-n-butanol, and acetone, are blended together in single dual issues and evaluated as renewables for SIE. The biofuels were compared with each other as well as with the fossil fuel in SIE. Future biofuels for SIE are highlighted. A proposed method to reduce automobile emissions and reformulate the emissions into new fuels is presented and discussed. The benefits and weaknesses of using biofuels in SIE are summarized. The study established that ethanol has several benefits as a biofuel for SIE; it enhanced engine performance and decreased pollutant emissions significantly; however, ethanol showed some drawbacks, which cause problems in cold starting conditions and, additionally, the engine may suffer from a vapor lock situation. Methanol also showed improvements in engine emissions/performance similarly to ethanol, but it is poisonous biofuel and it has some sort of incompatibility with engine materials/systems; its being miscible with water is another disadvantage. The lowest engine performance was displayed by n-butanol and i-butanol biofuels, and they also showed the greatest amount of unburned hydrocarbons (UHC) and CO emissions, but the lowest greenhouse effect. Ethanol and methanol introduced the highest engine performance, but they also showed the greatest CO2 emissions. Acetone introduced a moderate engine performance and the best/lowest CO and UHC emissions. Single biofuel blends are also compared with dual ones, and the results showed the benefits of the dual ones. The study concluded that the next generation of biofuels is expected to be dual blended biofuels. Different dual biofuel blends are also compared with each other, and the results showed that the ethanol–methanol (EM) biofuel is superior in comparison with n-butanol–i-butanol (niB) and i-butanol–ethanol (iBE).

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Comprehensive analysis of environmental impacts and energy consumption of biomass-to-methanol and coal-to-methanol via life cycle assessment

Cited by 73 publications

References 32 publications

Sustainability footprints of a renewable carbon transition for the petrochemical sector within planetary boundaries

Sustainability footprints of a renewable carbon transition for the petrochemical sector within planetary boundaries

Comparative Life Cycle Assessment of Energy Consumption, Pollutant Emission, and Cost Analysis of Coal/Oil/Biomass to Ethylene Glycol

State of Art of Using Biofuels in Spark Ignition Engines

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