Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm3/ton coal (ash = 35%). August 19, 2022 by admin Question: Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm3/ton coal (ash = 35%). [A]. 150 [B]. 1500 [C]. 3500 [D]. 5000 Answer: Option B Explanation: No answer description available for this question.