Enabling cellulosic diesel with microchannel technology

Deshmukh, Soumitra; Tonkovich, Anna Lee; McDaniel, Jeffrey S; Schrader, Lucas D; Burton, Christy; Jarosch, Kai; Simpson, Anthony M; Kilanowski, David; LeViness, Steve

doi:10.4155/bfs.11.17

Cited by 22 publications

(12 citation statements)

References 28 publications

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“…Researchers at Velocys have developed a multichannel microreactor that can obtain high efficiency at a much lower production capacity than is capable with the traditional routes, reducing capital investment and operating costs (Scheme 23). 133,134 Furthermore, the production capacity per unit mass of the reactor is significantly higher. This opens up the potential to transport the reactor to the site of biomass, rather than the converse.…”

Section: Advantages In Large Scale Production From Small Reactorsmentioning

confidence: 99%

The role of flow in green chemistry and engineering

2013

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Flow chemistry and continuous processing can offer many ways to make synthesis a more sustainable practice. These technologies help bridge the large gap between academic and industrial settings by often providing a more reproducible, scalable, safe and efficient option for performing chemical reactions. In this review, we use selected examples to demonstrate how continuous methods of synthesis can be greener than batch synthesis on a small and a large scale.

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Section: Advantages In Large Scale Production From Small Reactorsmentioning

confidence: 99%

The role of flow in green chemistry and engineering

2013

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“…Currently, however, gas‐to‐liquid (GTL) technologies are only economically attractive at very large scales. Process intensification is a must if these tools are to be applied for biomass‐to‐liquid (BTL) conversions, where the on‐site availability of the feedstock is an obstacle 3…”

Section: Textural and Chemical Properties Of The Supportsmentioning

confidence: 99%

“…Both reactor and catalysis engineering have been explored in GTL process intensification: while the use of structured catalysts and reactors maximizes the FTS efficiency by improving mass and energy transport,3, 4 many efforts have been devoted to formulating catalysts that maximize the direct production of liquid fuels (desired products) by combining FTS, hydrocarbon cracking, and isomerization into one single catalyst particle 5. A promising approach involves the use of mesoporous (hierarchical) zeolites as supports for FTS catalysts 6.…”

Section: Textural and Chemical Properties Of The Supportsmentioning

confidence: 99%

Hydrogen‐Bond‐Driven Controlled Molecular Marriage in Covalent Cages

Acharyya

Mukherjee

2013

Chemistry A European J

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A supramolecular approach that uses hydrogen-bonding interaction as a driving force to accomplish exceptional self-sorting in the formation of imine-based covalent organic cages is discussed. Utilizing the dynamic covalent chemistry approach from three geometrically similar dialdehydes (A, B, and D) and the flexible triamine tris(2-aminoethyl)amine (X), three new [3+2] self-assembled nanoscopic organic cages have been synthesized and fully characterized by various techniques. When a complex mixture of the dialdehydes and triamine X was subjected to reaction, it was found that only dialdehyde B (which has OH groups for H-bonding) reacted to form the corresponding cage B3X2 selectively. Surprisingly, the same reaction in the absence of aldehyde B yielded a mixture of products. Theoretical and experimental investigations are in complete agreement that the presence of the hydroxyl moiety adjacent to the aldehyde functionality in B is responsible for the selective formation of cage B3X2 from a complex reaction mixture. This spectacular selection was further analyzed by transforming a nonpreferred (non-hydroxy) cage into a preferred (hydroxy) cage B3X2 by treating the former with aldehyde B. The role of the H-bond in partner selection in a mixture of two dialdehydes and two amines has also been established. Moreover, an example of unconventional imine bond metathesis in organic cage-to-cage transformation is reported.

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“…100 K higher than that of the LTFT. 3,15,19 Comparison of various catalytic systems reveals that the key factor, determining the product distribution over bifunctional FT catalysts, is the close vicinity of the FT active phase to the acid functionality. In that sense, hybrid catalyst particles (such as the so-called 'coreshell' catalysts 17 ) are more effective than physical mixtures which perform in turn better than the layered beds of FT and acid catalyst particles.…”

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confidence: 99%