DIYbanter - View Single Post

wrote:
[snip]
Is it called producer gas, the low-value mix of CO and H2?

That's "water gas": "producer gas" is basically air, with the oxygen
replaced by CO.

Producer gas is "produced" by burning coke in insufficient air: the
process is exothermic, so self-sustaining.

Water gas is produced by reacting steam with incandescent coke: this
process is endothermic. H2O + C = H2 + CO.
Typically water-gas generators are installed in pairs: one generates the
gas, while the other gets a blow of (excess) air, so re-heating the
coke. Then they swap roles.