Figure 1
The diagram shows a horizontal process flow consisting of rectangular blocks connected by arrows, enclosed mostly within a large dashed rectangle labeled “System boundary”. On the far left, outside the dashed boundary, a rectangular box labeled “Waste” appears. A rightward arrow connects this box to another rectangular block labeled “Waste storage”, which is positioned just inside the dashed system boundary. Above the “Waste storage” block, a vertical and rightward arrow labeled “Air injection valve” connects to the box “Electrical heating”. From the “Waste storage” block, a rightward arrow leads to a rectangular block labeled “Primary cell”. Above the “Primary cell”, a rectangular block labeled “Electrical heating” is connected downward with a vertical arrow pointing into the “Primary cell”. Below the “Primary cell”, a vertical arrow points downward to another rectangular box labeled “Residues, Metals, Glass, ellipsis”. From the “Primary cell”, a rightward arrow leads to a rectangular block labeled “Air slash syngas mixing chamber”. Another rightward arrow connects this block to a rectangular block labeled “Secondary cell”. From the “Secondary cell”, a rightward arrow leads to a rectangular block labeled “Heat exchanger and steam generator”. Above this block, a vertical arrow extends upward to another rectangular box labeled “Chimney”. To the right of the “Heat exchanger and steam generator”, a rightward arrow exits the dashed system boundary and connects to a rectangular box labeled “Steam turbine”. From the “Steam turbine”, a vertical arrow points downward to another rectangular box labeled “Water steam condenser”. A left and upward arrow from “Water steam condenser” loops back to the box “Heat exchanger and steam generator” inside the dashed boundary.Flow diagram of the gasification plant. Source: Authors’ own creation