how much CO2 can wood produce

we were trying to figure out how much CO₂ does wood produce during gasification.

my approach is the carbon mass balance...

carbon in wood undergoes gasification to produce CO and CO₂ and combusts in a burner to produce CO₂, while a small fraction of carbon does not get gasified and extracts out of the gasifier as char and tar.

wood (gliricidia) consists of 50% by weight. ash / tar / char formation is about 5% and wood used in gasification has about 20% moisture.

so the total effective carbon content in SynGas produced by 1kg of wood is:
(1000 x 0.80 x 0.50 x 0.95)/12 = 32 mol

so SynGas will produce 32 mol of CO₂ per kg of wood, which is about 1.4 kg of CO₂.

note that the 32 mol CO₂ released gets reabsorbed in energy plantations, unlike diesel or petrol.

1 liter diesel produces about 2.7 kg of CO₂
1 liter of petrol produces about 2.6 kg of CO₂

the CO₂ in aerate beverages (such as coke) are produced from diesel combustion!