Changes in Pore Structure of Coal Caused by CS<sub>2</sub> Treatment and Its Methane Adsorption Response

<div>Methane isothermal adsorption constant changes with the coal rank increasing: (a) <svg height="11.8174pt" id="M74" style="vertical-align:-3.1815pt" version="1.1" viewbox="-0.0498162 -8.6359 21.327 11.8174" width="21.327pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M600 0V24L339 665L311 657L43 24V0H600ZM497 50H107L303 539L497 50Z" id="g113-133"></path></g><g transform="matrix(.013,0,0,-0.013,8.327,0)"><path d="M697 650H468L461 623L492 619C539 613 547 605 518 546C481 471 367 264 278 116H276C239 278 197 500 186 567C180 604 185 613 226 619L252 623L260 650H24L17 623C78 617 92 613 108 533L216 -11H247C365 200 515 462 560 529C616 612 624 615 689 623L697 650Z" id="g113-87"></path></g><g transform="matrix(.0091,0,0,-0.0091,15.659,3.132)"><path d="M499 166C484 119 466 88 447 68C424 43 390 38 338 38C297 38 262 40 242 51C223 62 218 80 218 133V522C218 607 226 612 309 617V650H41V617C124 612 131 605 131 522V129C131 45 123 38 38 33V0H497C505 30 529 128 534 160L499 166Z" id="g58-74"></path></g></svg> changes with the coal rank increasing and (b) <svg height="11.8174pt" id="M75" style="vertical-align:-3.1815pt" version="1.1" viewbox="-0.0498162 -8.6359 20.6485 11.8174" width="20.6485pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M600 0V24L339 665L311 657L43 24V0H600ZM497 50H107L303 539L497 50Z" id="g113-133"></path></g><g transform="matrix(.013,0,0,-0.013,8.327,0)"><path d="M600 480C600 590 528 650 384 650H143L137 622C222 614 225 607 210 531L130 127C113 41 106 36 23 28L17 0H294L300 28C204 36 195 42 212 127L243 284L314 263C327 263 339 263 352 264C465 271 600 337 600 480ZM508 481C508 351 402 304 329 304C289 304 265 311 250 317L295 559C302 594 310 606 323 611C335 616 350 619 367 619C455 619 508 573 508 481Z" id="g113-81"></path></g><g transform="matrix(.0091,0,0,-0.0091,14.983,3.132)"><path d="M499 166C484 119 466 88 447 68C424 43 390 38 338 38C297 38 262 40 242 51C223 62 218 80 218 133V522C218 607 226 612 309 617V650H41V617C124 612 131 605 131 522V129C131 45 123 38 38 33V0H497C505 30 529 128 534 160L499 166Z" id="g58-74"></path></g></svg> changes with the coal rank increasing.</div>

Geofluids

fig7

Figure 7

Figure 7: Changes in Pore Structure of Coal Caused by CS<sub>2</sub> Treatment and Its Methane Adsorption Response 

Geofluids

Changes in Pore Structure of Coal Caused by CS2 Treatment and Its Methane Adsorption Response

Figure 7

Changes in Pore Structure of Coal Caused by CS₂ Treatment and Its Methane Adsorption Response