Environmentally benign production

With respect to the formation of unwanted polyaromatic hydrocarbons in the pyrolytic process, it has been shown that conditions can be maintained where such fonuation is negligible according to EPA and OSHA standards. As production rates are increased, it will be incumbent on any manufacturer to maintain a set of operating parameters which produce an environmentally-benign product however, current information regarding the process for fiber formation reveals no barriers to accomplishing this. 

All the resulting hydrolysates and the slurried dunnage are treated by SCWO to produce environmentally benign products. 

As Anastas has pointed out, the guiding principle is the design of environmentally benign products and processes (benign by design) [4]. This concept is embodied in the 12 Principles of Green Chemistry [1, 4] which can be paraphrased as ... 

Post-processing of cellulosic wastes to biofuels aims to produce useful environmentally benign products out of a potentially hazardous material. To ensure environmental consistency, however, life cycle assessment is essential, to evaluate the environmental impact of post-processing and its end products. 

The environmentally benign production process sets lyoceU apart from other man-made cellulosic fibre types, and this will gain in importance over the coming years providing impetus for fibre production growth. 

One of the first biobased products being commercialized exemplifying the promise of combining metabolic engineering with advanced process design to achieve a sustainable product with superior properties at a low cost is biobased 1,3-propanediol (PDO). Because biobased PDO is not yet produced in commercial quantities, this is a good time to take early measure of how well die biobased pathway meets the objectives of sustainable and environmentally benign production. 

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