Symposium Series / Institution of Chemical Engineers ; Symposium series / Institution of Chemical Engineers ; Symposium series - Institution of Chemical Engineers ; Symposium series / the Institution of Chemical Engineers ; Symposium series / The Institution of Chemical Engineers ; Symposium series / Institution of Chemical Engineers ; no. 60 Symposium series (Institution of Chemical Engineers (Great Britain) ; Symposium series (Institution of Chemical Engineers (Great Britain)) ; American Institute of Chemical Engineers. American Institute of Chemical Engineers