Modularized Production of Value-Added Products and Fuels from Distributed Waste Carbon-Rich Feedstocks

Weber, Robert S.; Holladay, Johnathan E.

doi:10.1016/j.eng.2018.05.012

Cited by 13 publications

(22 citation statements)

References 15 publications

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“…We have recently overviewed the conversion of waste carbon into fuels and chemicals. A large number of plants would be needed to contend with the many, widely distributed sources of renewably produced biomass and carbon‐containing waste streams.…”

Section: Experience Curvesmentioning

confidence: 99%

“…The capital costs for the depolymerization operations (HTL) and balance of plant were taken from a preliminary Pacific Northwest National Laboratory estimate . The capital cost for the electrolysis reactor was adapted from a detailed technoeconomic analysis of a redox flow battery . At this early stage, we consider those costs to be plausible but highly uncertain, in part due to the excessively large range over which we downscaled the equipment costs.…”

Section: Experience Curvesmentioning

confidence: 99%

“…If the inputs (viz., feedstocks, energy) to a chemical process are derived from geographically dispersed sources that are expensive to aggregate or if delivery of a product would benefit from very close proximity to its customers, then an enterprise consisting of many replicate facilities that satisfy the distributed market should be preferred to a centralized facility that operates at the same rate of production. The preference could arise, as it may for process intensification, because of economics, resiliency, or safety . Examples of distributed feedstocks (inputs) include flue gas; renewably sourced electricity (in the absence of a lossless grid); and biomass and wastes from farms, landfills, or water treatment plants.…”

Section: Introductionmentioning

confidence: 99%

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The economics of numbering up a chemical process enterprise

Weber

Snowden-Swan

2019

J Adv Manuf & Process

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Chemical-processing plants that can be numbered up by installing and operating many replicate facilities are economically and technically well suited for the conversion of geographically distributed sources of renewable or waste carbon into fuels or chemicals. Examples from the manufacture of chemicals and the installation of flue gas treatment technology suggest that the relative cost diminution should correlate through a power law (Cost/Cost 1 / E −a ) with E, a measure of the experience of operating those facilities and/or the number of units that are mass manufactured and installed. The exponent, a, can be related to the complexity of the process and the characteristics of the products. K E Y W O R D Slearning, modular manufacturing, technoeconomic analysis

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Section: Experience Curvesmentioning

confidence: 99%

Section: Experience Curvesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The economics of numbering up a chemical process enterprise

Weber

Snowden-Swan

2019

J Adv Manuf & Process

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“…Industrial and research efforts to overcome the technological constraints for lignocellulosic waste treatment have been previously reported [57]. Nonetheless, there are still issues that have to be examined like the value of the end-products, different waste sources, or the biology of bioreactors [58][59][60]. Considering the above results, a techno-economic assessment of the thermophilic anaerobic digestion of grasses in continuous mode would be interesting to evaluate the process in the context of viability and profitability in a pilot or full-scale application [61][62][63].…”

Section: Cumulative Methane Productionmentioning

confidence: 99%

Effect of Temperature and Organic Load on the Performance of Anaerobic Bioreactors Treating Grasses

Achinas

Euverink

2020

Environments

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The organic residues generated in grasslands can be treated by adopting anaerobic digestion technology. This technology can enhance the efforts for sustainable waste management around the world. In the northern Netherlands, there is a vast amount of ditch clippings and canal grasses that can be used as a renewable source of energy; however, optimal bioenergy production from grasses is still under research and this study aims to evaluate biogas production from grassy residues at the local level in the context of a sustainable waste management scheme. Batch tests were facilitated to investigate the impact of temperature and organic load on the anaerobic digestion performance of grass mixtures (ditch clippings and canal grasses). The results showed that high temperature favors the degradation of high lignocellulosic materials like grasses. Specifically, bioreactors at 55 °C with an organic load of 30 g volatile solids (VS)∙L−1 reached 360.4 mL∙g VSsubstrate−1. Moreover, reactors with low organic loads resulted in a lower methane yield. The kinetics study also showed good fitting of the predicted and experimental values.

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“…Because of the mild conditions under which it operates, electrocatalytic hydrogenation (ECH) of oxygenated compounds does not face this challenge [9][10][11]. By adding H produced from electrolysis of water, renewable electricity potentially can be stored in the chemical bonds of hydrocarbon energy carriers used today.…”

Section: Introductionmentioning

confidence: 99%