Time-Dependence of Mechanical Property Alterations on Anthracite Coals Treated by Supercritical Carbon Dioxide

Figure 1

Principle diagram of high-temperature and high-pressure visual reactor. (1) Gas supply; (2) reducing valve; (3) valve; (4) gas booster pump; (5) reducing valve; (6) pressure regulating valve; (7) air compressor; (8) temperature and pressure transducers; (9) temperature and pressure indicator; (10) Sc-CO₂ high-pressure geochemical reactor; (11) safety valve; (12) vacuum pump; (13) vacuum gauge.