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KS-I-1consumption for epoxidation versus decomposition and is determined by the charge densityon the iron center. The different ways in which the activity and selectivity of the porphyrincan be tuned will be illustrated.24
С 2 -С 3 OLEFIN PRODUCTION PATHWAYS DURING PROPANE OXIDATIONOVER Li/MgO CATALYSTS: CONTRIBUTION OF HETEROGENEOUS ANDHOMOGENEOUS FACTORSSinev M.Yu., Korchak V.N., Seshan K. 1 , Lefferts L. 1KS-I-2N.N. Semenov Institute of Chemical Physics RAS, Moscow, Russia1 University of Twente, Faculty of Science and Technology, Enschede, The NetherlandsE-mail: k.seshan@utwente.nlThe demand for bulk chemicals including light olefins (ethylene, propylene, butenes) isconstantly increasing. However, the rate at which their production can be increased viatraditional processes from different oil fractions (steam cracking of naphtha, fluid catalyticcracking) is limited by several factors, including accessibility of additional raw materials anddramatically increasing oil prices. Catalytic dehydrogenation of alkanes, as an alternativeroute to olefins, shows some disadvantages such as thermodynamic limitations, a hightendency to coking and short catalyst lifetimes. In principal, oxidative dehydrogenation(ODH) of light alkanes can provide with a possibility to avoid these limitations. However,despite the research efforts invested, industrial scale application of ODH reaction has not beenrealized up to now due to the insufficient olefin yields, which typically do not exceed 30%,especially for C 3+ olefins. The latter is caused by a high reactivity of product olefins ascompared with that of initial alkanes. Further, in spite of the absence of thermodynamiclimitations, ODH processes still require relatively high temperatures, similar to those at whichadvanced yields of olefins can be obtained in non-oxidative mode. One more disadvantage ofthe oxidative conversion of propane and higher alkanes in a substantial contribution ofcracking route (formation of C-C bond splitting products) accompanying the desired ODHroute.In this paper, the reaction pathways of ODH and cracking product formation are analyzedin terms of a heterogeneous-homogeneous mechanism. It was demonstrated in manypublications that ODH reaction proceeds via the formation and further transformation of alkylradicals generated by the catalyst (see, for instance, [1-3]). Li/MgO catalyst is a convenientmodel for the evaluation of reaction pathways because of its well-known capability ofproducing free radicals from alkanes [3] and the existence of information required for theevaluation of rate constants of elementary gas-solid reactions [4].Catalysts containing 1-7 wt.% Li were prepared by conventional impregnation of MgOwith water solution of LiNO 3 and finally calcined at 750 o C. Catalytic measurements wereperformed in a quartz microreactor (4 mm inner diameter) at 1 atm and temperatures < 600 o C.25
Page 1: Сибирское отделени
Page 5: PLENARY LECTURES
Page 8 and 9: PL-1“nucleophily”, “electroph
Page 10 and 11: PL-2This presentation will focus on
Page 12 and 13: PL-3NOBLE METALS CONTAINING CATALYS
Page 14 and 15: PL-4KINETICS AND MECHANISM OF SELEC
Page 16 and 17: PL-5the possibility of performing s
Page 18 and 19: PL-6MULTINUCLEAR NMR IMAGING IN CAT
Page 20 and 21: PL-6At the same time, other excitin
Page 23: KS-I-1THE EFFECTS OF ACTIVE SITE CO
Page 27 and 28: - process (3) can be important in t
Page 29 and 30: OOOOZ mO OXOO XO nYO O n-2(I) HY(II
Page 31 and 32: KS-I-4В настоящей раб
Page 33 and 34: TAP-APPROACH IN CATALYTIC MECHANISM
Page 35 and 36: KS-I-6pressure study. For this inve
Page 37 and 38: NEW ADVANCED CATALYSTS ON THE BASIS
Page 39 and 40: KS-II-1Многочисленны
Page 41 and 42: KS-II-2The following approaches tha
Page 43 and 44: KS-II-4KINETIC FEATURES AND MECHANI
Page 45 and 46: KS-II-4от характера ли
Page 47 and 48: KS-II-5В работе проана
Page 49 and 50: KS-II-6Me 3 , 1,2,4-Me 3 , Me 4 ).
Page 51 and 52: KS-III-1INTENSITY OF IR-ADSORPTION
Page 53 and 54: APPLICATION OF SURFACE SCIENCE PHYS
Page 55 and 56: KS-III-2преимуществом
Page 57 and 58: KS-III-3ON THE REGULARITIES OF THE
Page 59 and 60: KS-III-3пропилена, то н
Page 61 and 62: KS-III-4K on the same sites that ac
Page 63 and 64: KS-III-5комплекс вопро
Page 65: CAN QUANTUM CHEMISTRY HELP TO TAYLO
Page 69 and 70: OP-I-1MECHANISMS OF HETEROGENEOUS C
Page 71 and 72: OP-I-2Рис. 1. Зависимос
Page 73 and 74: CARBON OXIDE HYDROGENATION OVER Fe-
Page 75 and 76:
OP-I-3значения полос
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OP-I-4цеолита, а при с
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IRON EFFECT UPON ALKANES CRACKING O
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OP-I-5На поверхности
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OP-I-6acidity measurements of the H
Page 85 and 86:
OP-I-7Н 2 -D 2 обмен иссл
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OP-I-8NOVEL WAY TO THE SYNTHESIS OF
Page 89 and 90:
OP-I-8глиоксалю - сост
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OP-I-9their intensities, new appear
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OP-I-10activity even with platinum.
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OP-I-10part of CPSS was straightfor
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OP-I-11Однако при гидр
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OP-I-12MOLECULAR MECHANISM OF THE L
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OP-I-12по сравнению с
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OP-I-13over other catalysts in fine
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OP-I-14поперек и под у
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OP-I-15After performing an ageing t
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OP-I-16oxidized to Sn 4+ [4,5]. In
Page 111 and 112:
OP-I-17INFLUENCE OF THE LATTICE OXY
Page 113 and 114:
OP-I-18NEW CATALYST OF LOW-TEMPERAT
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OP-I-19COMPARATIVE STUDY OF METHANE
Page 117 and 118:
OP-I-19syngas selectivity is due to
Page 119 and 120:
OP-I-20EFFECT OF OXYGEN MOBILITY ON
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селективности. В эт
Page 123 and 124:
OP-I-21поликристаллич
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OP-I-22SELECTIVE СО OXIDATION: RE
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OP-I-22Как видно из ри
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OP-I-23установлению к
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OP-I-24CATALYTIC PERFORMANCE OF COP
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OP-I-25MECHANISMS OF METHANE CHLORI
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OP-I-25При исследован
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OP-I-26За модельные мо
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OP-I-27INFLUENCE OF SECOND METAL AD
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OP-I-28ACTIVITY AND DEACTIVATION OF
Page 143 and 144:
OP-I-28а содержание бе
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OP-I-29хлористого вод
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THE MECHANISM OF CHLORINE GENERATIO
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OP-I-30Значения конст
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OP-I-31ТХБ, растворите
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OP-I-32Наряду с хлорид
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CATALYTIC TRANSFORMATIONS OF ALIPHA
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OP-I-34STRONG METAL-SUPPORT INTERAC
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OP-I-34The reduction extent of Ni 2
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OP-I-35impregnating solutions for c
Page 163 and 164:
FEATURES OF CATALYSTS EMPLOYMENT FO
Page 165 and 166:
OP-I-361 - NH 3 (14,5), H 2 S (4,1)
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OP-I-37В условиях реак
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OP-I-38ROLE OF REDOX- AND ACIDIC CE
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OP-I-38Таблица 2. Актив
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OP-I-39Таблица 1. Влиян
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OP-I-40гидроксосилика
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OP-I-41(рис.1). Дегидрир
Page 179 and 180:
PROTON TRANSFER REACTIONSIN TRANSIT
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OP-II-1elucidation of the mechanism
Page 183 and 184:
OP-II-2oscillations of E Pt and pH
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OP-II-3гексана в польз
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OP-II-3более мягкий пу
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R 1OCa 2+OH -OHR 2Рис. 1. Пер
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STUDY OF THE MECHANISM OF CATALYTIC
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MECHANISM OF PHENOL AND ANILINE ALK
Page 195 and 196:
OP-II-7MECHANISM OF FORMATION OF HY
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OP-II-8CATALYTIC AND PHYSICOCHEMICA
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OP-II-8To sum up we can say that Pt
Page 201 and 202:
OP-II-9величины изоме
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OP-II-9увеличением со
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OP-II-10the second metal are still
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OP-II-11которых химизм
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OP-II-116. Co(Ni)Mo-катализ
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OP-II-12гг-1, которая от
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OP-II-13ROLE OF THE SOLVENT IN THE
Page 215 and 216:
OP-II-14KINETICS AND MECHANISM OF P
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O 2H 2 OFeX 2FeX 3I 2HIBuOHP n , Zn
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OP-II-15capable of asymmetric oxida
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OP-II-16Систематическ
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OP-II-17MECHANISM OF ETHYLENE METHO
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OP-II-18MECHANISM OF LIQUID-PHASE C
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OP-II-18катализатора и
Page 229 and 230:
OP-II-19Основным недос
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OP-II-19Литература:1 Шн
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OP-II-20Surprising is the finding t
Page 235 and 236:
OP-II-21ºC) [7]. Полученн
Page 237 and 238:
OP-II-21Настоящая рабо
Page 239 and 240:
OP-II-22W(VI), Ti(IV), Re(VII), х
Page 241 and 242:
OP-II-23MECHANISM OF ACTIVATION AND
Page 243 and 244:
OP-II-23содержащей сис
Page 245 and 246:
2+2+OP-II-24O25 31 (R=Me)OORD 2/ Ru
Page 247 and 248:
OP-II-25ASYMMETRIC HYDROGENATION OF
Page 249 and 250:
MECHANISM OF TRIMETHYLPENTANE AND D
Page 251 and 252:
OP-II-26СХЕМА 3. Наибол
Page 253 and 254:
OP-II-27диенофилов - ма
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OP-II-28H 2 MoO 4 и FeMoO 4 поз
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OP-II-29THE CATALYTIC ACTION OF AMM
Page 259 and 260:
OP-II-29Как и в случае
Page 261 and 262:
THE KINETICS AND MECHANISM OF P-TOL
Page 263 and 264:
OP-II-30PhCH-CH 2O+SHKk1 +PhCH-CH 2
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OP-II-31Согласно данны
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OP-II-32TRANSFORMATION OF SULFUR OR
Page 269 and 270:
Рисунок 1OP-II-32269
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OP-II-33скорость образ
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FCC GASOLINE SULFUR REDUCTION ADDIT
Page 275 and 276:
OP-II-35NOVEL HETEROGENIZED NICKEL
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OP-II-35повышена до 60-80
Page 279 and 280:
OP-II-36provide stable experimentat
Page 281 and 282:
DISCRIMINATION OF KINETIC MODELS OF
Page 283 and 284:
OP-II-37Однако при уве
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OP-II-38Для этих систе
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OP-II-39раскрывается п
Page 289 and 290:
OP-II-40TITANIUM-MAGNESIUM CATALYST
Page 291 and 292:
OP-II-41MECHANISM OF BUTADIENE POLY
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OP-II-41Нами установле
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OP-II-42тщательно пром
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OP-II-43обрыва или пер
Page 299 and 300:
OP-II-44MECHANISMS OF HIGHER α-OLE
Page 301 and 302:
OP-II-44С учётом разни
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OP-II-45сополимеры, пр
Page 305 and 306:
OP-III-1Разбавление аз
Page 307 and 308:
OP-III-1Из таблицы 1 ви
Page 309 and 310:
OP-III-2OPERANDO INFRARED STUDY OF
Page 311 and 312:
OP-III-2with formation of diketene
Page 313 and 314:
OP-III-3С этих позиций
Page 315 and 316:
OP-III-4центров двух т
Page 317 and 318:
OP-III-5аналогов, соде
Page 319 and 320:
OP-III-6QUANTUM-CHEMICAL STUDY OF T
Page 321 and 322:
OP-III-6Hn(H 2 C) ON BHH 3 BBH 3HPh
Page 323 and 324:
OP-III-7положения заме
Page 325 and 326:
OP-III-8поверхностног
Page 327 and 328:
OP-III-9поверхностных
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OP-III-11THERMODYNAMIC CHARACTERIST
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OP-III-11which corresponds to ΔS°
Page 336 and 337:
OP-III-12i[ Cp2ZrHCl⋅2] 2iiX6= HA
Page 338 and 339:
OP-III-13MOLECULAR MECHANISM OF 1,2
Page 340 and 341:
OP-III-13changes to the formation o
Page 342 and 343:
OP-III-14Рис. Синергиче
Page 344 and 345:
OP-III-15Содержание во
Page 346 and 347:
OP-III-16XPS AND NEXAFS IN-SITU INV
Page 348 and 349:
OP-III-17THERMAL STABILITY OF GOLD
Page 350 and 351:
OP-III-17Там, где спека
Page 352 and 353:
OP-III-18Окисление Н 2 .
Page 354 and 355:
OP-III-18режима протек
Page 356 and 357:
OP-III-19палладия адсо
Page 358 and 359:
OP-III-20THE ADSORBED OXYGEN SPECIE
Page 360 and 361:
OP-III-20Воздействие н
Page 362 and 363:
OP-III-21and selective oxidation of
Page 364 and 365:
OP-III-22STM/XPS STUDY OF MODEL CAT
Page 366 and 367:
OP-III-22Разработанная
Page 368 and 369:
OP-III-23Образцы редко
Page 370 and 371:
OP-III-24IN SITU GAS-PHASE X-RAY PH
Page 372 and 373:
OP-III-24Перед каталит
Page 374 and 375:
OP-III-25width ΔH = 7-100G. The pa
Page 376 and 377:
OP-III-26структуры, но
Page 378 and 379:
OP-III-27скорости реак
Page 380 and 381:
OP-III-28STUDIES OF THE MECHANISM O
Page 382 and 383:
OP-III-28и (iv) повторной
Page 384 and 385:
OP-III-29При Т
Page 386 and 387:
OP-III-30ACTIVE PHASE TRANSFORMATIO
Page 388 and 389:
OP-III-30- Au, above 650° and for
Page 390 and 391:
OP-III-31с участием раз
Page 392 and 393:
OP-III-32- high-activity zone - in
Page 394 and 395:
OP-III-33MATHEMATICAL MODEL OF THE
Page 396 and 397:
OP-III-33a) b)Temperature [K]Pressu
Page 398 and 399:
OP-III-34В настоящем со
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OP-III-35кластера имее
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OP-III-36APPLICATION OF MULTINUCLEA
Page 404 and 405:
OP-III-36simultaneous occurrence of
Page 406 and 407:
OP-III-37металлических
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OP-III-38METHODS FOR INVESTIGATION
Page 410 and 411:
OP-III-39CIDNP IN ANALYSIS OF RADIC
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OP-III-39солей переход
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OP-III-40similar π-alkyne CpNi( Ph
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OP-III-41взаимодействи
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MECHANISM OF ARYLHALIDES CATALYTIC
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YP-1Из полученных да
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YP-2В развитие указа
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INVESTIGATION OF THE INFLUENCE OF C
Page 427 and 428:
Таблица 1. Диаметр п
Page 429 and 430:
YP-4При использовани
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YP-5В этой связи пред
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N-PENTANE ISOMERIZATION AT THE SUPE
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CYCLOHEXANOL CONVERTION OVER Cu-CON
Page 437 and 438:
YP-7основных центров
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YP-8Разработана преп
Page 441 and 442:
YP-9размер наночасти
Page 443 and 444:
YP-10фольги очищалас
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YP-11STUDIES OF SELECTIVE HETEROGEN
Page 447 and 448:
YP-11быстрее потенци
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YP-12водорода происх
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YP-13CATALYTIC ACTIVITY AND PHYSICO
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YP-13Hydrogen consumption [a.u.]543
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KS-I-6 Zemlyanov D., Aszalos-Kiss B
Page 457 and 458:
OP-I-8 Magaev O.V., Fedotova M.P.,
Page 459 and 460:
OP-I-30 Rozdyalovskaya T.A., Chudin
Page 461 and 462:
OP-II-12 Lavrenov A.V., Duplyakin V
Page 463 and 464:
OP-II-37 Балаев А.В., Гр
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OP-III-16 Beloshapkin S., Zemlianov
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OP-III-40 Saraev V.V., Kraikivskii
Page 469:
VII РОССИЙСКАЯ КОНФЕ
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