Call Us Now! 1-501-833-8511 | Info@Lee-Enterprises.com

Hydrofoil Impellers vs. Pitched Blade Turbines in Lignocellulosic Slurries

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 When I did my first tests on such […]

The King of Biofuels – A Guide to Pyrolysis’ Progress and Prospects

Biofuels Digest recently invited two of our noted biofuels experts, Dr. Lorenz Bauer and Dr. Terry Mazanec, to lead webinars on the field of pyrolysis and to discuss its progress and future prospects.  Dr. Bauer presented Part 1 and Dr. Mazanec presented part two. For Lee Enterprises Consulting, Dr. Bauer handles bio oil upgrading, catalytic […]

Opportunities to Transition Ethanol Facilities to Biochemical Refineries

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 grew rapidly. By 1865, the first successful oil pipeline was built, from Titusville to a […]

Lignocellulosic Biomass Deconstruction

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. Reviewed here are recent published developments of note in LCB deconstruction, emphasizing process simplicity, efficiency, and […]

Sustainable Polyurethanes and the Bio Economy

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 of biomass to produce value added chemicals for polymer synthesis […]

Opportunities to Transition Ethanol Facilities to Biochemical Refineries

By: Daniel A. Lane and Joel A. Stone, Lee Enterprises Consulting 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 grew rapidly.  By 1865, […]

Lignocellulosic Biomass Deconstruction

By Dr. B. Cooker, Chemical Processing Solutions, Consultant with Lee Enterprises Consulting Summary 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. Reviewed here are […]

Ionic Liquids: A Key Enabler of Biomass Processing?

Potential Of Ionic Liquids For Biomass Pretreatment The explosion of interest in using biomass to produce chemicals and fuels has motivated a renewed search for improved methods for pretreatment that enable efficient conversion of the raw materials.   The molecules in cellulosic materials, and particularly lignocellulosic material, are intertwined and held together by intermolecular forces like […]

The 30-30 Rule: Lessons from the Field in Wood Power

From an operations standpoint, a wood-fired power plant can be described as a fuel handling system first, and a power plant second. The biggest challenges stem from the fuel itself – procurement, supply, handling and combustion. By contrast, the steam turbine and power cycle seem relatively trouble-free. Fuel-related problems top the list of headaches at […]