A coal gasifier opearating at 20 atm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having

• A. Higher methane content and thus higher calorific value
• B. Higher carbon monoxide content
• C. Lower carbon dioxide content
• D. None of these

Answer: (A)