Fig. 3

To the left, a simplified diagram of an ammonia production process model is shown. All primary flow streams are labeled in black circles. Auxiliary streams are numbered in gray circles. Streams are mapped to the PIOT framework at right, following the arrows. Stream numbers included in the categories are shown in the PIOT. This is an example of a single sector A, outputs of other sectors in this sample economy are shaded. As referred to in the text, the process information fills the column for the given sector. The IO identity that \(x_{A}^{{r,{\text{outputs}}}} = x_{A}^{{r,{\text{inputs}}}}\) is used to fill the total output column