The dynamics of nitrogen, hydrogen, and carbon-monoxide liberation in the isothermal holding of coke residues from G, Zh, KO, KS, and T coal at 1000°C is studied in experiments after heating at 10°C/min. The gas liberation in isothermal holding continues throughout the experiment (2 h). The rate of gas liberation declines exponentially in the course of holding. The rates of H2 and CO emission are related to the clinkering properties of the coal (the plastic-layer thickness) on the basis of a second-order polynomial; for the rate of nitrogen liberation, this relationship is linear. In isothermal holding, the mass loss of the coke residue may be 0.60–1.00% after 60 min and 0.85–1.38% after 120 min. The corresponding gas yields are 25–30 and 35–42 m3/t of coke. The gas consists of 76.8–93.0 vol % hydrogen, 1.9–11.7 vol % nitrogen, and 4.1–14.9 vol % carbon monoxide.