Table 1. Gate-to-Gate data of the SMR-based carbon monoxide plant calculated by process simulation. The functional unit is 1 kg of CO

Specification	Category	Name	Unit	Value
Input	Raw material	Liquid natural gas	kg	0.849
	Raw material	Process water	kg	22.3
	Energy	Electricity	MJ	1.969
Output	Product	Carbon monoxide	kg	1.00
	Byproduct	Hydrogen	kg	0.213
	Byproduct	High-pressure steam	MJ	3.901
Emission	To water	Wastewater	kg	0.441
	To air	Carbon dioxide	kg	0.466