COAL-LIQUEFACTION PRODUCT GAS-ANALYSIS WITH AN AUTOMATED GAS-CHROMATOGRAPH

Application of an automated TCD/FID Carle gas chromatograph for on-stream analysis of coal liquefaction product gases generated in a continuous SRC-II pilot plant was demonstrated. Used in tandem with a computerized data reduction system, the GC measured gas composition, computed molecular weight, and density. Gases analyzed included H//2, CO, CO//2, O//2, N//2, H//2S, and all C//1-C//6 hydrocarbons. The method had excellent accuracy, reproducibility, and long-term stability. It was a quick, reliable, convenient, and low-cost analytical technique. Based on the GC analyses, hydrogen consumption and gaseous product yields were determined for SRC-II liquefaction experiments.