RU2013117690A - Регенерация содержащих металл катализаторов - Google Patents

Регенерация содержащих металл катализаторов Download PDF

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RU2013117690A
RU2013117690A RU2013117690/04A RU2013117690A RU2013117690A RU 2013117690 A RU2013117690 A RU 2013117690A RU 2013117690/04 A RU2013117690/04 A RU 2013117690/04A RU 2013117690 A RU2013117690 A RU 2013117690A RU 2013117690 A RU2013117690 A RU 2013117690A
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catalyst
partial pressure
metal
carbon dioxide
regeneration zone
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RU2013117690/04A
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RU2579147C2 (ru
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Кеннет Р. Клем
Ларри Л. ИАЧЧИНО
Мобае ЭЙФЕВОРКИ
Хуан Д. ЭНАО
Нирадж САНГАР
Сяобо ЧЖЭН
Лоренцо С ДЕКАУЛЬ
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Эксонмобил Кемикэл Пейтентс Инк.
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    • B01J29/48—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing arsenic, antimony, bismuth, vanadium, niobium tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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Abstract

1. Способ регенерации закоксованного содержащего металл катализатора, способ включает взаимодействие закоксованного содержащего металл катализатора в зоне регенерации с атмосферой, которая содержит диоксид углерода и монооксид углерода, где отношение парциального давления монооксида углерода к парциальному давлению диоксида углерода в зоне регенерации составляет не менее 2,3:1, и которая содержит менее 100 част./млн молекулярного кислорода, при температуре, равной не ниже 400°C.2. Способ по п.1, в котором указанная атмосфера содержит менее 10 част./млн молекулярного кислорода.3. Способ по любому из предыдущих пунктов, в котором отношение парциального давления монооксида углерода к парциальному давлению диоксида углерода в зоне регенерации составляет от примерно 2,3:1 до примерно 100:1.4. Способ по п.1, в котором парциальное давление диоксида углерода в зоне регенерации составляет от примерно 0,1 до примерно 40 фунт-сила/дюймабс. (от 0,7 до 276 кПа).5. Способ по п.1, в котором указанная температура равна от примерно 600°C до примерно 900°C.6. Способ по п.1, дополнительно включающий взаимодействие закоксованного содержащего металл катализатора в зоне регенерации с атмосферой, которая содержит водород, при температуре, равной не ниже 400°C, одновременно с указанным взаимодействием с указанной атмосферой, содержащей диоксид углерода и монооксид углерода, или после него.7. Способ по п.1, в котором металл, содержащийся в указанном катализаторе, выбран из группы, включающей молибден, вольфрам, кобальт, цинк, рений, платину, палладий и их смеси.8. Способ по п.1, в котором металл, содержащийся в указанном катализаторе, включает молибден в форме карб�

Claims (15)

1. Способ регенерации закоксованного содержащего металл катализатора, способ включает взаимодействие закоксованного содержащего металл катализатора в зоне регенерации с атмосферой, которая содержит диоксид углерода и монооксид углерода, где отношение парциального давления монооксида углерода к парциальному давлению диоксида углерода в зоне регенерации составляет не менее 2,3:1, и которая содержит менее 100 част./млн молекулярного кислорода, при температуре, равной не ниже 400°C.
2. Способ по п.1, в котором указанная атмосфера содержит менее 10 част./млн молекулярного кислорода.
3. Способ по любому из предыдущих пунктов, в котором отношение парциального давления монооксида углерода к парциальному давлению диоксида углерода в зоне регенерации составляет от примерно 2,3:1 до примерно 100:1.
4. Способ по п.1, в котором парциальное давление диоксида углерода в зоне регенерации составляет от примерно 0,1 до примерно 40 фунт-сила/дюйм2 абс. (от 0,7 до 276 кПа).
5. Способ по п.1, в котором указанная температура равна от примерно 600°C до примерно 900°C.
6. Способ по п.1, дополнительно включающий взаимодействие закоксованного содержащего металл катализатора в зоне регенерации с атмосферой, которая содержит водород, при температуре, равной не ниже 400°C, одновременно с указанным взаимодействием с указанной атмосферой, содержащей диоксид углерода и монооксид углерода, или после него.
7. Способ по п.1, в котором металл, содержащийся в указанном катализаторе, выбран из группы, включающей молибден, вольфрам, кобальт, цинк, рений, платину, палладий и их смеси.
8. Способ по п.1, в котором металл, содержащийся в указанном катализаторе, включает молибден в форме карбида.
9. Способ по п.1, в котором указанный катализатор содержит подложку, выбранную из группы, включающей ZSM-5, диоксид кремния, оксид алюминия, диоксид циркония, диоксид титана, алюминат бария и их смеси.
10. Способ по п.1, способ включает:
(a) подачу содержащего метан сырья в зону реакции, в которой находится содержащий металл катализатор;
(b) обеспечение в указанной зоне реакции условий проведения реакции, эффективных для превращения по меньшей мере части указанного метана в указанный высший углеводород (углеводороды), и накопление углеродсодержащего материала на содержащем металл катализаторе, что приводит к дезактивации катализатора;
(c) перенос по меньшей мере части указанного деактивированного содержащего металл катализатора в зону регенерации;
(d) взаимодействие указанной части указанного деактивированного содержащего металл катализатора в указанной зоне регенерации с атмосферой, которая содержит диоксид углерода и монооксид углерода, где отношение парциального давления монооксида углерода к парциальному давлению диоксида углерода в зоне регенерации составляет не менее 2,3:1, и которая содержит 100 част./млн молекулярного кислорода, при температуре, равной не ниже 400°C, с целью удаления по меньшей мере части углеродсодержащего материала, находящегося на катализаторе, и регенерации катализатора; и
(e) возврат по меньшей мере части регенерированного катализатора в указанную зону реакции.
11. Способ по п.10, в котором отношение парциального давления монооксида углерода к парциальному давлению диоксида углерода при проведении указанного взаимодействия (d) составляет не менее 10:1.
12. Способ по п.10, в котором отношение парциального давления монооксида углерода к парциальному давлению диоксида углерода при проведении указанного взаимодействия (d) составляет от примерно 2,3:1 до примерно 20:1.
13. Способ по п.10, в котором указанная атмосфера при проведении указанного взаимодействия (d) содержит менее 1 част./млн О2.
14. Способ по п.10, дополнительно включающий:
(f) взаимодействие по меньшей мере части указанного деактивированного содержащего металл катализатора в зоне регенерации с атмосферой, которая содержит водород, при температуре, равной не ниже 400°C, с целью удаления по меньшей мере части углеродсодержащего материала, находящегося на катализаторе, и регенерации катализатора.
15. Способ по п.10, в котором катализатор обрабатывают посредством проведения цикла, начиная с указанной операции (а) и заканчивая по меньшей мере одним из указанных взаимодействий (d) или указанных взаимодействий (f) таким образом, что катализатор подвергают указанному взаимодействию (f) от примерно 2 до примерно 100 раз каждый раз, когда катализатор подвергают указанному взаимодействию (d).
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