New Photosynthesis: Direct Photoconversion of Biomass to Molecular Oxygen and Volatile Hydrocarbons

Greenbaum, Elias; Tevault, C. V.; Cha, C. Y.

doi:10.1021/ef00049a024

Cited by 14 publications

(2 citation statements)

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“…The photoconversion of biomass into oxygenated hydrocarbons is another interesting alternative [ 180 , 181 ]. The oxygen sources for this reaction can be an aqueous media and/or alcohol/CH 3 CN (more selective photo-oxidation) used to disolve sensitizing ions (e.g., Fe 3+, 2+ ), or “hydrated” carbohydrates.…”

Section: Photochemical Transformations Of Biomass Via Heterogeneoumentioning

confidence: 99%

Nanostructured Photocatalysts and Their Applications in the Photocatalytic Transformation of Lignocellulosic Biomass: An Overview

et al. 2009

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Heterogeneous photocatalysis offer many possibilities for finding appropiate environmentally friendly solutions for many of the the problems affecting our society (i.e., energy issues). Researchers are still looking for novel routes to prepare solid photocatalysts able to transform solar into chemical energy more efficiently. In many developing countries, biomass is a major energy source, but currently such countries lack of the technology to sustainably obtain chemicals and/or fuels from it. The Roadmap for Biomass Technologies, authored by 26 leading experts from academia, industry, and government agencies, has predicted a gradual shift back to a carbohydrate-based economy. Biomass and biofuels appear to hold the key to satisfy the basic needs of our societies for the sustainable production of liquid fuels and high value-added chemicals without compromising the scenario of future generations. In this review, we aim to discuss various design routes for nanostructured photocatalytic solid materials in view of their applications in the selective transformation of lignocellulosic biomass to high value-added chemicals.

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Section: Photochemical Transformations Of Biomass Via Heterogeneoumentioning

confidence: 99%

Nanostructured Photocatalysts and Their Applications in the Photocatalytic Transformation of Lignocellulosic Biomass: An Overview

et al. 2009

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“…Off-gases usually contain substantial amounts of CO 2 , which, depending on their final end use, may require further energy-consuming separation systems. Catalysts can improve the kinetics and chemical conversion and reduce the operating temperature requirements, − but their use is subjected to the feasibility of recovering them from the remaining ash. Nonetheless, environmental considerations favor converting coal into cleaner fluid fuels that have higher H/C ratios, provided the process heat required for the transformation is supplied by a clean renewable energy source, e.g., solar energy.…”

Section: Introductionmentioning

confidence: 99%

Coal Gasification Using the ZnO/Zn Redox System

Tsuji¹,

Wada²,

Tamaura³

et al. 1996

Energy Fuels

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A two-step thermochemical process is proposed for converting coal to high-quality synthesis gas. In the first, high temperature, endothermic step, coal is reacted with zinc oxide to form metallic zinc and an H2−CO gas mixture. In the second, low temperature, exothermic step, zinc is used for splitting water and producing hydrogen and zinc oxide. The hydrogen is employed to enrich and adjust the synthesis gas mixture obtained in the first step, while the zinc oxide is recycled to the first step. Experimental studies have shown a more effective chemical conversion obtained via the proposed two-step scheme as compared to that obtained via the conventional single-step direct steam gasification. CO formation was more favorable with the coal−ZnO redox reaction than with the coal−H2O reaction in the 1173−1373 K temperature range. This highly endothermic reaction could be conducted using concentrated solar radiation as the energy source of high-temperature process heat, allowing for a combined utilization of coal and solar energy, and consequently for a significant reduction of the CO2 emissions derived from the combustion of coal.

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Hydrogen Production byChlamydomonas reinhardtii

Torzillo

Seibert

2013

Handbook of Microalgal Culture

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New Photosynthesis: Direct Photoconversion of Biomass to Molecular Oxygen and Volatile Hydrocarbons

Cited by 14 publications

References 0 publications

Nanostructured Photocatalysts and Their Applications in the Photocatalytic Transformation of Lignocellulosic Biomass: An Overview

Nanostructured Photocatalysts and Their Applications in the Photocatalytic Transformation of Lignocellulosic Biomass: An Overview

Coal Gasification Using the ZnO/Zn Redox System

Hydrogen Production byChlamydomonas reinhardtii

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