VLE of Carbon Dioxide-Loaded Aqueous Potassium Salt of <i>L</i>-Histidine Solutions as a Green Solvent for Carbon Dioxide Capture: Experimental Data and Modelling

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Equilibrium constant</td><td class="align_center"><i>a</i></td><td class="align_center"><i>b</i></td><td class="align_center"><i>c</i></td><td class="align_center">Reference</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left"><span style="width: 10.8501ptpx;"><svg height="12.5794pt" id="M44" style="vertical-align:-3.29107pt" version="1.1" viewbox="-0.0498162 -9.28833 10.8501 12.5794" width="10.8501pt" 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="M480 416C480 431 465 448 438 448C388 448 312 383 252 330C217 299 188 273 155 237H153L257 680C262 700 263 712 253 712C240 712 183 684 97 674L92 648L126 647C166 646 172 645 163 606L23 -6L29 -12C51 -5 77 2 107 8C115 62 130 128 142 180C153 193 179 220 204 241C231 170 259 106 288 54C317 0 336 -12 358 -12C381 -12 423 2 477 80L460 100C434 74 408 54 398 54C385 54 374 65 351 107C326 154 282 241 263 299C296 332 351 377 403 377C424 377 436 372 445 368C449 366 456 368 462 375C472 386 480 402 480 416Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,6.474,3.132)"><path d="M387 400C387 425 348 451 303 451C247 451 176 414 132 376C69 322 24 228 24 148C24 43 74 -12 147 -12C211 -12 301 33 363 103L346 128C319 99 249 51 193 51C148 51 112 84 112 165C112 230 130 287 154 330C170 359 199 400 243 400C277 400 304 383 326 354C333 345 343 343 354 348C378 360 387 382 387 400Z"></path></g></svg></span></td><td class="align_center">−12092.1</td><td class="align_center">−36.7816</td><td class="align_center">235.482</td><td class="align_center">[<a href="/journals/ijce/2019/9428638/#B40" target="_blank">40</a>]</td></tr><tr><td class="align_left"><span style="width: 12.2477ptpx;"><svg height="12.5794pt" id="M45" style="vertical-align:-3.29107pt" version="1.1" viewbox="-0.0498162 -9.28833 12.2477 12.5794" width="12.2477pt" 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="M480 416C480 431 465 448 438 448C388 448 312 383 252 330C217 299 188 273 155 237H153L257 680C262 700 263 712 253 712C240 712 183 684 97 674L92 648L126 647C166 646 172 645 163 606L23 -6L29 -12C51 -5 77 2 107 8C115 62 130 128 142 180C153 193 179 220 204 241C231 170 259 106 288 54C317 0 336 -12 358 -12C381 -12 423 2 477 80L460 100C434 74 408 54 398 54C385 54 374 65 351 107C326 154 282 241 263 299C296 332 351 377 403 377C424 377 436 372 445 368C449 366 456 368 462 375C472 386 480 402 480 416Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,6.474,3.132)"><path d="M538 684C542 703 539 710 529 710C512 710 455 682 363 674L361 644H396C444 644 448 642 438 594L405 438C373 450 347 451 336 451C288 451 200 416 147 374C69 312 24 207 24 113C24 29 60 -12 94 -12C126 -12 156 4 196 30C231 53 296 100 346 166H348L328 81C311 10 325 -12 348 -12C380 -12 450 24 512 98L495 125C466 97 431 70 417 70C408 70 408 80 411 98L538 684ZM390 373L361 240C336 196 210 56 145 56C132 56 113 73 113 131C113 216 156 338 220 379C243 394 266 402 303 402C331 402 375 388 390 373Z"></path></g></svg></span></td><td class="align_center">−1243.7</td><td class="align_center">−35.4819</td><td class="align_center">220.067</td><td class="align_center">[<a href="/journals/ijce/2019/9428638/#B40" target="_blank">40</a>]</td></tr><tr><td class="align_left"><span style="width: 10.9506ptpx;"><svg height="12.5794pt" id="M46" style="vertical-align:-3.29107pt" version="1.1" viewbox="-0.0498162 -9.28833 10.9506 12.5794" width="10.9506pt" 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="M480 416C480 431 465 448 438 448C388 448 312 383 252 330C217 299 188 273 155 237H153L257 680C262 700 263 712 253 712C240 712 183 684 97 674L92 648L126 647C166 646 172 645 163 606L23 -6L29 -12C51 -5 77 2 107 8C115 62 130 128 142 180C153 193 179 220 204 241C231 170 259 106 288 54C317 0 336 -12 358 -12C381 -12 423 2 477 80L460 100C434 74 408 54 398 54C385 54 374 65 351 107C326 154 282 241 263 299C296 332 351 377 403 377C424 377 436 372 445 368C449 366 456 368 462 375C472 386 480 402 480 416Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,6.474,3.132)"><path d="M398 365C398 411 356 451 297 451C250 451 198 430 151 397C65 336 24 230 24 139C24 14 97 -12 148 -12C198 -12 284 7 373 104L355 130C306 84 246 53 198 53C132 53 111 109 111 163V189C209 211 398 261 398 365ZM317 351C317 308 273 262 117 225C134 338 189 383 221 399C230 404 249 407 263 407C295 407 317 389 317 351Z"></path></g></svg></span></td><td class="align_center">−13445.9</td><td class="align_center">−22.4773</td><td class="align_center">140.932</td><td class="align_center">[<a href="/journals/ijce/2019/9428638/#B40" target="_blank">40</a>]</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Values of constants for equation (<a href="https://static.hindawi.com/articles/ijce/volume-2019/9428638/figures/#EEq25" target="_blank">25</a>).</div>

International Journal of Chemical Engineering

tab3

Table 3

Table 3: VLE of Carbon Dioxide-Loaded Aqueous Potassium Salt of <i>L</i>-Histidine Solutions as a Green Solvent for Carbon Dioxide Capture: Experimental Data and Modelling 

Table 3 | VLE of Carbon Dioxide-Loaded Aqueous Potassium Salt of L-Histidine Solutions as a Green Solvent for Carbon Dioxide Capture: Experimental Data and Modelling 