Experimental Investigation of <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-4.6755pt" id="M1" height="16.7143pt" version="1.1" viewBox="-0.0657574 -12.0388 80.5239 16.7143" width="80.5239pt"><g transform="matrix(.018,0,0,-0.018,0,0)"><path id="g190-68" d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z"/></g><g transform="matrix(.018,0,0,-0.018,11.937,0)"><path id="g190-98" d="M433 39L423 65C413 59 399 54 387 54C370 54 352 69 352 114V299C352 352 342 392 307 422C285 440 255 449 225 449C168 437 102 399 75 379C56 365 44 353 44 339C44 315 69 296 87 296C101 296 111 303 116 319C124 349 133 371 145 385C156 397 171 404 190 404C241 404 275 364 275 291V274C253 256 180 229 120 209C65 190 39 159 39 110C39 47 88 -12 159 -12C189 -12 237 25 277 52C282 35 288 21 301 8C312 -3 333 -12 348 -12L433 39ZM275 84C256 65 221 48 195 48C164 48 124 73 124 124C124 161 146 180 185 198C206 208 254 229 275 240V84Z"/></g><g transform="matrix(.018,0,0,-0.018,19.817,0)"><path id="g190-78" d="M861 0V28C774 35 771 41 768 147L759 509C756 612 762 614 851 622V650H681L449 149L221 650H57V622C148 613 153 609 144 479L130 271C123 166 117 123 111 88C104 46 85 34 26 28V0H259V28C192 35 169 42 167 90C166 130 166 173 170 256L185 541H187L411 7H431L675 555H679L683 147C683 41 680 35 598 28V0H861Z"/></g><g transform="matrix(.018,0,0,-0.018,35.812,0)"><path id="g190-111" d="M524 0V26C466 32 460 36 460 104V297C460 393 411 449 331 449C302 449 276 437 248 419C223 402 201 387 181 372V451C137 432 90 420 42 411V388C96 378 102 374 102 310V104C102 38 97 33 29 26V0H246V26C187 32 181 36 181 104V339C211 365 250 390 290 390C357 390 381 345 381 276V109C381 40 374 32 315 26V0H524Z"/></g><g transform="matrix(.018,0,0,-0.018,45.631,0)"><path id="g190-80" d="M381 665C170 665 44 498 44 318C44 125 188 -15 369 -15C552 -15 703 117 703 333C703 534 550 665 381 665ZM359 629C491 629 601 517 601 306C601 114 502 21 390 21C249 21 146 158 146 346S248 629 359 629Z"/></g><g transform="matrix(.013,0,0,-0.013,59.04,4.308)"><path id="g22-49" d="M310 382C345 404 366 417 384 433C404 450 417 474 417 501C417 578 357 635 252 635H251C184 635 135 603 107 572L57 506L86 478C122 527 156 554 205 554C250 554 290 528 290 467S227 367 144 340L151 300C168 304 190 308 208 308C260 308 327 275 327 181C327 89 288 49 238 49C177 49 131 93 109 111C95 122 82 119 70 110C57 100 40 82 40 63C40 48 48 34 65 21C86 4 126 -12 177 -12C240 -12 460 60 460 222C460 298 409 363 310 380V382Z"/></g><g transform="matrix(.013,0,0,-0.013,65.386,4.308)"><path id="g54-33" d="M556 236V289H56V236H556Z"/></g><g transform="matrix(.013,0,0,-0.013,73.065,4.308)"><path id="g14-226" d="M507 510C501 594 437 699 316 699C244 699 155 649 155 567C155 536 175 485 218 432C190 415 161 396 131 374C75 333 22 274 22 180C22 77 84 -12 220 -12C278 -12 333 10 378 45C443 96 477 167 477 246C477 327 419 396 328 494C277 549 245 591 245 604C245 621 260 625 279 625C360 625 425 567 492 484L507 510ZM348 192C348 104 306 37 242 37C189 37 161 107 161 169C161 230 170 287 200 337C217 366 235 390 248 401C293 344 348 271 348 192Z"/></g></svg> Based Oxygen Carriers Used in Continuous Chemical-Looping Combustion

<table>Outgoing oxygen concentration during batch experiments. The fluidizing gas is changed from 5% oxygen in nitrogen to 100% nitrogen at time 0. The 20 s delay is the time it takes for gas to reach gas analyzer. Fresh particles are compared to particles which have been used in the 300 W unit.</table>

International Journal of Chemical Engineering

fig9

Figure 9

Figure 9: Experimental Investigation of <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-4.6755pt" id="M1" height="16.7143pt" version="1.1" viewBox="-0.0657574 -12.0388 80.5239 16.7143" width="80.5239pt"><g transform="matrix(.018,0,0,-0.018,0,0)"><path id="g190-68" d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z"/></g><g transform="matrix(.018,0,0,-0.018,11.937,0)"><path id="g190-98" d="M433 39L423 65C413 59 399 54 387 54C370 54 352 69 352 114V299C352 352 342 392 307 422C285 440 255 449 225 449C168 437 102 399 75 379C56 365 44 353 44 339C44 315 69 296 87 296C101 296 111 303 116 319C124 349 133 371 145 385C156 397 171 404 190 404C241 404 275 364 275 291V274C253 256 180 229 120 209C65 190 39 159 39 110C39 47 88 -12 159 -12C189 -12 237 25 277 52C282 35 288 21 301 8C312 -3 333 -12 348 -12L433 39ZM275 84C256 65 221 48 195 48C164 48 124 73 124 124C124 161 146 180 185 198C206 208 254 229 275 240V84Z"/></g><g transform="matrix(.018,0,0,-0.018,19.817,0)"><path id="g190-78" d="M861 0V28C774 35 771 41 768 147L759 509C756 612 762 614 851 622V650H681L449 149L221 650H57V622C148 613 153 609 144 479L130 271C123 166 117 123 111 88C104 46 85 34 26 28V0H259V28C192 35 169 42 167 90C166 130 166 173 170 256L185 541H187L411 7H431L675 555H679L683 147C683 41 680 35 598 28V0H861Z"/></g><g transform="matrix(.018,0,0,-0.018,35.812,0)"><path id="g190-111" d="M524 0V26C466 32 460 36 460 104V297C460 393 411 449 331 449C302 449 276 437 248 419C223 402 201 387 181 372V451C137 432 90 420 42 411V388C96 378 102 374 102 310V104C102 38 97 33 29 26V0H246V26C187 32 181 36 181 104V339C211 365 250 390 290 390C357 390 381 345 381 276V109C381 40 374 32 315 26V0H524Z"/></g><g transform="matrix(.018,0,0,-0.018,45.631,0)"><path id="g190-80" d="M381 665C170 665 44 498 44 318C44 125 188 -15 369 -15C552 -15 703 117 703 333C703 534 550 665 381 665ZM359 629C491 629 601 517 601 306C601 114 502 21 390 21C249 21 146 158 146 346S248 629 359 629Z"/></g><g transform="matrix(.013,0,0,-0.013,59.04,4.308)"><path id="g22-49" d="M310 382C345 404 366 417 384 433C404 450 417 474 417 501C417 578 357 635 252 635H251C184 635 135 603 107 572L57 506L86 478C122 527 156 554 205 554C250 554 290 528 290 467S227 367 144 340L151 300C168 304 190 308 208 308C260 308 327 275 327 181C327 89 288 49 238 49C177 49 131 93 109 111C95 122 82 119 70 110C57 100 40 82 40 63C40 48 48 34 65 21C86 4 126 -12 177 -12C240 -12 460 60 460 222C460 298 409 363 310 380V382Z"/></g><g transform="matrix(.013,0,0,-0.013,65.386,4.308)"><path id="g54-33" d="M556 236V289H56V236H556Z"/></g><g transform="matrix(.013,0,0,-0.013,73.065,4.308)"><path id="g14-226" d="M507 510C501 594 437 699 316 699C244 699 155 649 155 567C155 536 175 485 218 432C190 415 161 396 131 374C75 333 22 274 22 180C22 77 84 -12 220 -12C278 -12 333 10 378 45C443 96 477 167 477 246C477 327 419 396 328 494C277 549 245 591 245 604C245 621 260 625 279 625C360 625 425 567 492 484L507 510ZM348 192C348 104 306 37 242 37C189 37 161 107 161 169C161 230 170 287 200 337C217 366 235 390 248 401C293 344 348 271 348 192Z"/></g></svg> Based Oxygen Carriers Used in Continuous Chemical-Looping Combustion 

International Journal of Chemical Engineering

Experimental Investigation of Based Oxygen Carriers Used in Continuous Chemical-Looping Combustion

Figure 9