One of the research topics in the research group of Prof. Christos T. Maravelias at University of Wisconsin – Madison is ‘Renewable Chemicals from Lignocellulosic Biomass’. One line of research is into producing chemicals such as 1,4-butanediol (1,4-BDO), 1,5-pentanediol (1,5-PDO) and 1,6-hexanediol (1,6-HDO) from wood chips.

This process Sankey diagram is from the research description page of the Maravelias group.


The red numbers relate to the carbon content in the process (starting with 100% carbon molecules in the feedstock, white birch wood). The coloring of the Sankey arrows is used to signal carbon concentration. And the height of the process nodes shows the cost share of a unit in the process (no absolute cost, just relatively to each other). Interesting! Read more here.

Also see: TriVersa process