Category: Thought Leadership

Helping Trump Help Bioenergy

Helping Trump Help Bioenergy

May 15, 2017 |

By Douglas L. Faulkner, “The Cleantech Conservative” Special to The Digest Mr. Trump won the Presidency by promising to get government out of the way of rejuvenating American manufacturing, energy production and agriculture. He is now repaying those constituencies by asking them to do just that – – help him help them. But, after eight […]

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Icahn’s Pig in a Poke

Icahn’s Pig in a Poke

May 10, 2017 |

By Brent Erickson, Executive VP, Biotechnology Innovation Organization Special to The Digest Members of the U.S. Senate are questioning whether Carl Icahn’s lobbying to change the Renewable Fuel Standard creates an ethics conflict with his role as advisor in the Trump administration. In addition to the ethics question, Members of Congress and some in the […]

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Hydrofoil Impellers vs. Pitched Blade Turbines in Lignocellulosic Slurries

Hydrofoil Impellers vs. Pitched Blade Turbines in Lignocellulosic Slurries

May 8, 2017 |

By Gregory T. Benz Special to The Digest In a previous article (ref 1), it was stated that both pitched blade turbines and hydrofoils could be successfully used to agitate high-solids lignocellulosic materials, but that the hydrofoil could do the job with less power and torque. This article expands on that comment. A little history […]

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KiOR – In Hindsight

KiOR – In Hindsight

April 26, 2017 |

By Dr Kapil Shyam Lokare, Special to The Digest “You can’t connect the dots looking forward; you can only connect them looking backwards. So, you have to trust that the dots will somehow connect in your future.” – Steve Jobs I have taken the liberty to connect dots in hindsight with one of the largest ventures in […]

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Opportunities to Transition Ethanol Facilities to Biochemical Refineries

Opportunities to Transition Ethanol Facilities to Biochemical Refineries

April 20, 2017 |

By Daniel A. Lane and Joel A. Stone, Lee Enterprises Consulting Special to The Digest The US commercial petroleum industry started with the drilling by retired railroad conductor Edwin Drake of a well near Titusville, PA in 1859. Drake’s well sparked an oil boom and over the next couple of years, and US petroleum production […]

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Lignocellulosic Biomass Deconstruction

Lignocellulosic Biomass Deconstruction

April 12, 2017 |

By Dr. Bernard Cooker, Chemical Processing Solutions, Consultant with Lee Enterprises Consulting Special to The Digest Cheap, plentiful lignocellulosic biomass (LCB), consisting of cellulose, hemicellulose and lignin, is deconstructed to release useful chemical intermediates in the bioeconomy. These include glucose from cellulose, glucose and other sugars from hemicellulose, and oxygenated benzene derivatives (OBTX) from lignin. […]

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Sustainable Polyurethanes and the Bio Economy

Sustainable Polyurethanes and the Bio Economy

April 10, 2017 |

By Lorenz Bauer, Ph.D., Lee Enterprises Consulting Special to The Digest Sustainability has become a key concern in polyurethane industry.   Reducing the environmental impact of polymers by replacing fossil derived carbon, using more environmental friendly processes and reducing and recycling the carbon used either directly or indirectly is a corporate goal of many producers. The use […]

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Butanol vs. ethanol as a fuel component

Butanol vs. ethanol as a fuel component

April 5, 2017 |

Is your business model based on government regulations or fuel science?  By Bill Brandon, Special to The Digest In light of the recent article on Butamax, I feel a response from the perspective of automakers is appropriate.  One of the earlier articles referenced asked “ where’s butanol, or other substitutes for gasoline besides ethanol?” and went […]

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Fuel Economy Rules: Someone is Listening

Fuel Economy Rules: Someone is Listening

March 27, 2017 |

by Doug Durante, Executive Director of the Clean Fuels Development Coalition Special to The Digest The recent announcement that the Trump Administration was taking another look at Corporate Average Fuel Economy (CAFE) standards was a welcome reality check for what is a complex and multi-layered issue. There was an immediate knee jerk reaction that this […]

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Impeller Selection for Lignocellulosic Hydrolysis Reactors

Impeller Selection for Lignocellulosic Hydrolysis Reactors

March 16, 2017 |

By Gregory T. Benz, Lee Enterprises Consulting Special to The Digest Lignocellulosic slurries at high solids concentrations (10-30%) can be quite viscous. The author has seen some where the viscosity at a shear rate of 1/s is higher than 400,000 cP. Conventional agitator impeller selection guidelines would lead one to use helical ribbon impellers (figure […]

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