Advanced fuels from ethanol – a superstructure optimization approach

Restrepo-Flórez, Juan Manuel; Maravelias, Christos T.

doi:10.1039/d0ee02447c

Cited by 30 publications

(27 citation statements)

References 89 publications

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“…The concept of decision-making was also incorporated into the work presented by Lai et al [35] to consider the cooperation among the corporate unit, business unit, research and development unit, and production unit in a chemical design and production enterprise. Restrepo-Flórez and Maravelias [36] developed a superstructural framework for the design of biorefineries that utilises ethanol to produce gasoline, jet fuel, and diesel. The framework considers aspects such as catalysis, process synthesis, and fuel property modeling in designing biorefineries that produce fuels with specified product properties.…”

Section: Integration Of Process and Product Designmentioning

confidence: 99%

Inverse Molecular Design Techniques for Green Chemical Design in Integrated Biorefineries

Lee

Andiappan

et al. 2021

Processes

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Over the past decades, awareness of the increase in environmental impact due to industrial development and technological advancement has gradually increased. Green manufacturing is one of the key approaches that begin to address environmental issues. With the current global attention, methodologies to incorporate green manufacturing into the design of green products through the green process route are much needed. However, it is challenging for industries to achieve this, as there is no definite definition of green. This work presents a systematic approach that provides a clear and consistent green manufacturing definition with a measurement method in terms of both product and process. With the consistent green definitions, the developed approach designs a product that satisfies green property and other product performance properties. In addition, the developed approach synthesises the production process that fulfils green manufacturing definitions and financial considerations for the designed product. A case study on the design and production of green biofuel is solved to illustrate the efficacy of the approach. Green product design is obtained by identifying molecular building blocks that fulfil the targeted properties using an inverse molecular design technique. The goal is to design a chemical product that is environmentally friendly while fulfilling customer requirements. Moreover, a superstructural mathematical optimisation approach is used to determine optimal conversion pathways that have minimal environmental impact on the production of the identified green product. The utilisation of multi-objective optimisation allows the design of product and process to strike a good balance between operational and environmental performances.

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Section: Integration Of Process and Product Designmentioning

confidence: 99%

Inverse Molecular Design Techniques for Green Chemical Design in Integrated Biorefineries

Lee

Andiappan

et al. 2021

Processes

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“…7 Feedstock availability from sugar starch and lignocellulosic biomass, technological maturity of fuel ethanol conversion, and the ''blend wall'' issue make ethanol a potential precursor to make jet fuel as well as drop-in hydrocarbon fuels. As stated in Restrepo-Flo ´rez et al, the upgrading of ethanol toward fungible fuel molecules has seen significant advancements, 1 particularly in the area of catalytic upgrading of ethanol to hydrocarbon fuels.…”

Section: Challengesmentioning

confidence: 99%

“…Feedstock availability from starch sugar and lignocellulosic biomass (e.g., crop and forest residues and dedicated energy crops), technological maturity of fuel ethanol conversion, and the ''blend wall'' issue make ethanol a potential precursor to make jet fuel as well as other transportation fuels. The open-ended questions are the following: (1) what are the economic potential of ethanol and ethanol-to-hydrocarbon fuels; (2) how do we effectively prioritize research directions; and (3) what are the new research areas toward an economically viable process strategy? Going forward, strategies include retrofitting existing corn dry mill plants to convert ethanol to jet fuel blendstocks on site, as well as building dedicated plants that produce jet fuel blendstocks via alcohol intermediates using cellulosic materials.…”

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confidence: 99%

Biorefinery ethanol upgrading: Opportunities and challenges

Tao

Foust

2021

Joule

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“…For example, early studies (Ponce-Ortega et al, 2012a;Gabriel and El-Halwagi, 2013) identified the best conversion pathways of LCF and different types of biomass into bio-alcohols, respectively. Other studies (Vikash and Shastri, 2019;Restrepo-Flórez and Maravelias, 2020) also focused their research on identifying the best routes for the production of ethanol and ethanol derivatives, having lignocellulosic feedstock (LCF) as the starting material. Although to a significantly lower degree, the early-stage design of biorefineries for the production of high-value-added chemicals and building blocks has also been explored.…”

Section: Introductionmentioning

confidence: 99%

Optimal Conversion of Organic Wastes to Value-Added Products: Toward a Sustainable Integrated Biorefinery in Denmark

et al. 2022

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It is crucial to leave behind the traditional linear economy approach. Shifting the paradigm and adopting a circular (bio)economy seems to be the strategy to decouple economic growth from continuous resource extraction. To this end, producing bio-based products that aim to replace a part, if not all, of the fossil-based chemicals and fuels is a promising step. This can be achieved by using multi-product integrated biorefineries that convert organic wastes into chemicals, fuels, and bioenergy to optimize the use and close the materials and energy loops. To further address the development and implementation of organic waste integrated biorefineries, we proposed the open-source organic waste to value-added products (O2V) model and multi-objective optimization tool. O2V aims to provide a quick and straightforward holistic assessment, leading to identifying optimal or near-optimal design, planning, and operational decisions. This model not only prioritizes economic benefits but also takes on board the other pillars of sustainability. The proposed tool is built on a comprehensive superstructure of processing alternatives that include all stages concerning the conversion of organic waste to value-added products. Furthermore, it has been framed and formulated in a “plug-and-play” format, where, when required, the user only needs to add new process data to the structured information database. This database integrates data on (i) new processes (e.g., different conversion technologies), (ii) feedstocks (e.g., composition), and (iii) products (e.g., prices), among others. Due to Denmark’s high availability of organic waste, implementing a second-generation integrated biorefinery in Denmark has been chosen as a realistic showcase. The application of O2V efficiently led to the identification of trade-offs between the different sustainability angles. Thus, it made it possible to determine early-stage decisions regarding product portfolio, optimal production process, and related planning and operational decisions. Henceforth, it has been demonstrated that applying O2V aids in shifting the fossil to bio-based production, thereby contributing to the switch toward a circular bioeconomy.

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Advanced fuels from ethanol – a superstructure optimization approach

Abstract: Advanced fuel design through integration of chemistries leading to different components: alcohols (blue); ethers (green); and olefins, parafins, and aromatics (yellow).

Cited by 30 publications

References 89 publications

Inverse Molecular Design Techniques for Green Chemical Design in Integrated Biorefineries

Inverse Molecular Design Techniques for Green Chemical Design in Integrated Biorefineries

Biorefinery ethanol upgrading: Opportunities and challenges

Optimal Conversion of Organic Wastes to Value-Added Products: Toward a Sustainable Integrated Biorefinery in Denmark

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