Nelson’s complexity index

Therefore, lEA Bioenergy Task 42 has published a working document to present the current status of an approach to develop a Biorefinery Complexity Index (BCI) and to calculate the BCI for some selected biorefinery concepts.The approach was developed since 2010 and started with the analogy to the Nelson s complexity index used for oil refineries. The Nelson s (complexity) index was developed by Wilbur L. Nelson and published in the Oil and Gas Journal (1960-61) to quantify the costs of the refinery s components. The Nelson s index is an indicator for the investment intensity, the cost index of the refinery, the value addition potential of a refinery, the refinery s ability to process feedstocks, such as high-sulfur crude, into value-added products. The higher the complexity of the refinery the more flexible it is. 

Based on the classification system of biorefineries as discussed above and the Nelson s complexity index for oil refineries a BCI is under development. 

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See also in sourсe #XX -- [ ]

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