Integration of wind, solar and biomass over a year for the constant production of CH4 from CO2 and water

Martı́n, Mariano; Davis, William B.

doi:10.1016/j.compchemeng.2015.09.006

Cited by 17 publications

(7 citation statements)

References 18 publications

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“…Alternatively, electrolysis is the process of choice. 43 Water splitting is a highly energy intensive process that requires renewable resources to attain renewable hydrogen production. Solar and wind energy can be used to produce the power required for the electrolysis, as well as for the multiple compression stages of the oxygen, to be stored, the hydrogen, and finally the feed of CO 2 and hydrogen to the reactor.…”

Section: Process Descriptionmentioning

confidence: 99%

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Optimal Integrated Facility for Oxymethylene Ethers Production from Methanol

Martı́n

Redondo

Grossmann

2020

ACS Sustainable Chem. Eng.

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In this work, we use a mathematical optimization approach for the evaluation of the production of oxymethylene ethers (OMEs) from methanol. OME1, methylal, and the mixture of OME3–5 are the targeted products. The process consists of formaldehyde production, OMEs synthesis from formaldehyde and methanol, and separation. The processes are modeled based on chemical equilibrium for the reactors and surrogate models for the rest of the units to determine the optimal operating conditions for producing the two products. The negative effect of water in the OMEs synthesis presents the alternative of partially removing water from the formaldehyde. However, no yield improvement is found. The production of OME1 results in 0.93 €/kg and an investment of 46 M€ while the production of OME3–5 mixture shows a production cost of 0.61 €/kg and an investment of 51 M€ for a production capacity of 247 and 264 kt/yr, respectively, from the same methanol feedstock. The effect of the methanol source in the cost from different renewable resources is also evaluated with biomass showing the most attractive OMEs prices and competitive ones for biomass price below 100 €/ton.

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Section: Process Descriptionmentioning

confidence: 99%

“…However, this technology results in the release of large amounts of CO 2 using the plants to fix hydrogen and to split water. Alternatively, electrolysis is the process of choice . Water splitting is a highly energy intensive process that requires renewable resources to attain renewable hydrogen production.…”

Section: Process Descriptionmentioning

confidence: 99%

Optimal Integrated Facility for Oxymethylene Ethers Production from Methanol

Martı́n

Redondo

Grossmann

2020

ACS Sustainable Chem. Eng.

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“…Deterministic optimization for the renewable source processing network design for different chemical products and energy production have been extensively investigated during the past decades, for example, methane production from water, CO 2 , and renewable sources; bioethanol production via gasification of switchgrass or hydrolysis of lignocellulosic switchgrass; biodiesel production from lignocellulosic switchgrass or cooking oil and algae; hydrogen, liquid fuel, commodity chemical (ethylene, propylene, butylene, benzene, etc.) production from biorenewables via fast pyrolysis; power production from biomass, wind, and solar as well as its storage via hydrogen-based dense energy carriers and battery; hydrogen production from biomass and solar; methanol production from algae, solar, and wind; glycerol production from biomass; polyacrylonitrile fiber and diesel substitute production via algae; biogasoline, biodiesel, and power production from biomass wind, solar, waste, and water; , liquid fuel production from lignocellulosic biomass; − nitrogen-containing polymer production from biomass; isoprene production from biomass; ammonia production from wind power or biomass; and so forth.…”

Section: Introductionmentioning

confidence: 99%

Multistage Distributionally Robust Design of a Renewable Source Processing Network under Uncertainty

Liu

Yuan

2021

Ind. Eng. Chem. Res.

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Integration of renewable sources into chemical and power production is one of the crucial pathways toward an effective, affordable, and deep decarbonization of the world economy in line with carbon neutrality and sustainable development. The present work concentrates on the robust design of the process network for multiproduct and power production with renewable sources under uncertainty. We propose a multistage distributionally robust optimization model to hedge against uncertain chemical product demand and feedstock availability. 1-norm Wasserstein metric is employed to construct the ambiguity set with limited uncertain data. We derive an equivalent robust counterpart of the multistage distributionally robust optimization based on the reformulations of the worst-case expectation term of each stage by taking advantage of a complete recourse, which remedies the computational issues. Computational results, including one base case and four correlated cases with different capacities, demonstrate that the optimal solutions from the proposed multistage distributionally robust optimization with the Wasserstein ambiguity set achieve better out-of-sample performance than the conventional multistage stochastic programming. Obviously, this is because distributionally robust optimization incorporates the worst-case probability distribution, while the multistage stochastic programming only considers empirical distribution.

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“…7 In both cases, nutrients for the algae were bought, but no fossil raw material was required since the oil and the methanol came from renewable sources. Process integration has provided the means to mitigate the lack of resources and improve the economics or the environmental impact by putting together chemical complexes from renewables such has solar, wind, and biomass 8,9 by integrating nuclear energy and water management 10 or upgrading sections of refineries with utilities plants. 11 Thus, in this work we propose and optimize an integrated facility that produces biodiesel from waste.…”

Section: ■ Introductionmentioning

confidence: 99%

Optimal Integrated Plant for Production of Biodiesel from Waste

Hernández

Martı́n

2017

ACS Sustainable Chem. Eng.

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In this work, we have optimized an integrated facility for the production of fully renewable biodiesel from waste via anaerobic digestion. On the one hand, the biogas produced is dry reformed to obtain syngas and methanol. On the other hand, the digestate remaining is used as a nutrient to grow algae. Algae oil is transesterified using internally produced methanol. The problem is formulated as a large non-linear programming problem (NLP) to compute the optimal operating conditions of the various reactors as well as the biogas composition and the content of nutrients in the digestate. Optimal heat exchanger and water networks are designed afterward. A total of 3110 kt/yr of manure is processed for the production of 90 Mgal/yr of biodiesel and 46.7 kt/yr of methanol. The process uses a fraction of the biogas to provide the energy required at the reformer, but the process still needs 1.5 MJ/gal of fatty acid methyl ester and 1.22 gal of water per gal of biodiesel. The production cost of biodiesel is competitive with previous work, 0.31 €/gal, but the investment is higher due to the need to process the waste into biogas, 193 M€. A scaled-down study is also carried out to evaluate the production and investment cost as a function of the farm size.

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Integration of wind, solar and biomass over a year for the constant production of CH4 from CO2 and water

Cited by 17 publications

References 18 publications

Optimal Integrated Facility for Oxymethylene Ethers Production from Methanol

Optimal Integrated Facility for Oxymethylene Ethers Production from Methanol

Multistage Distributionally Robust Design of a Renewable Source Processing Network under Uncertainty

Optimal Integrated Plant for Production of Biodiesel from Waste

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