Comparing pathways for electricity-based production of dimethoxymethane as a sustainable fuel

Burre, Jannik; Bongartz, Dominik; Deutz, Sarah; Mebrahtu, Chalachew; Osterthun, Ole; Sun, Ruiyan; Simon, Volker; Bardow, André; Klankermayer, Jürgen; Palkovits, Regina; Mitsos, Alexander

doi:10.1039/d1ee00689d

Cited by 19 publications

(21 citation statements)

References 58 publications

(81 reference statements)

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“…3 In current research, CO 2 -based polyoxymethylene ethers (OMEs) are considered as promising e-fuels for diesel engines. [4][5][6][7][8] Both as blends with fossil diesel and as full substitutes, OMEs can escape the traditional NO x -soot trade-off, i.e., both NO x and soot can be reduced simultaneously. 9 OMEs are commonly distinguished by their chain lengths, of which OME 1 and OME 3-5 are considered suitable for diesel engines.…”

Section: Introductionmentioning

confidence: 99%

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME_3–5 with fossil diesel

Simon

Deutz

Burre

et al. 2022

Sustainable Energy Fuels

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Section: Introductionmentioning

confidence: 99%

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME_3–5 with fossil diesel

Simon

Deutz

Burre

et al. 2022

Sustainable Energy Fuels

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“…In this simple example problem, we consider only two mutually exclusive options (either Unit P or Unit S) to produce a desired amount of a product, ̇nout = 1 (considered as a parameter). This illustrative example problem is motivated by our work on power-to-X (Burre et al 2020(Burre et al , 2021Roh et al 2020), in which decisions need to be taken on how to provide raw materials (e.g., hydrogen and carbon dioxide) and process them toward the final product (e.g., electricity-based fuels).…”

Section: Simple Illustrative Example Problemmentioning

confidence: 99%

Comparison of MINLP formulations for global superstructure optimization

2022

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Superstructure optimization is a powerful but computationally demanding task that can be used to select the optimal structure among many alternatives within a single optimization. In chemical engineering, such problems naturally arise in process design, where different process alternatives need to be considered simultaneously to minimize a specific objective function (e.g., production costs or global warming impact). Conventionally, superstructure optimization problems are either formulated with the Big-M or the Convex Hull reformulation approach. However, for problems containing nonconvex functions, it is not clear whether these yield the most computationally efficient formulations. We therefore compare the conventional problem formulations with less common ones (using equilibrium constraints, step functions, or multiplications of binary and continuous variables to model disjunctions) using three case studies. First, a minimalist superstructure optimization problem is used to derive conjectures about their computational performance. These conjectures are then further investigated by two more complex literature benchmarks. Our analysis shows that the less common approaches tend to result in a smaller problem size, while keeping relaxations comparably tight—despite the introduction of additional nonconvexities. For the considered case studies, we demonstrate that all reformulation approaches can further benefit from eliminating optimization variables by a reduced-space formulation. For superstructure optimization problems containing nonconvex functions, we therefore encourage to also consider problem formulations that introduce additional nonconvexities but reduce the number of optimization variables.

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“…Finally, the controller changes the output value and the output value (i.e. the control value) to control the system [18].…”

Section: The Basic Principle Of Fuzzy Controlmentioning

confidence: 99%

Development and Utilization of Wind Energy Resources and Analysis of New Utilization Methods Based on Fuzzy Control

2022

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The rapid development of wind energy has formed a huge industry, which has driven the development of a number of related industries and products, and is of great significance to promoting the development of my country's national economy. If it can be used to generate electricity, it will be very beneficial to the life and production of the local people. Therefore, it is very important to continuously improve the wind power generation control system and improve the utilization rate of wind power and the quality of power supply. The purpose of this paper is to study the development and utilization of wind energy resources and new ways of utilization based on fuzzy control. In this paper, the research work is carried out from the two aspects of control strategy and fuzzy controller design, and the design method of fuzzy controller is emphatically studied. Finally, the simulation model of wind turbine is constructed by MALAB, and the simulation experiment of the proposed fuzzy control method is completed. The results show that the fuzzy controller can achieve better control performance.

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Comparing pathways for electricity-based production of dimethoxymethane as a sustainable fuel

Abstract: A hierarchical methodology for process design and evaluation reveals how the remarkable achievements in catalyst development for dimethoxymethane (DMM) synthesis can make DMM a sustainable future e-fuel.

Cited by 19 publications

References 58 publications

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME_3–5 with fossil diesel

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME_3–5 with fossil diesel

Comparison of MINLP formulations for global superstructure optimization

Development and Utilization of Wind Energy Resources and Analysis of New Utilization Methods Based on Fuzzy Control

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Comparing pathways for electricity-based production of dimethoxymethane as a sustainable fuel

Abstract: A hierarchical methodology for process design and evaluation reveals how the remarkable achievements in catalyst development for dimethoxymethane (DMM) synthesis can make DMM a sustainable future e-fuel.

Cited by 19 publications

References 58 publications

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME3–5 with fossil diesel

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME3–5 with fossil diesel

Comparison of MINLP formulations for global superstructure optimization

Development and Utilization of Wind Energy Resources and Analysis of New Utilization Methods Based on Fuzzy Control

Contact Info

Product

Resources

About

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME_3–5 with fossil diesel

Blend for all or pure for few? Well-to-wheel life cycle assessment of blending electricity-based OME_3–5 with fossil diesel