Углерод-минеральные материалы из сапропеля как носители для катализаторов гидродехлорирования

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Abstract

В работе представлены результаты исследования возможности применения углерод-минеральных материалов, полученных из доступного сырья сапропеля, в качестве носителей для палладиевых катализаторов реакции гидродехлорирования хлорбензола. Селективное образование целевого продукта бензола было достигнуто при достаточно низком содержании палладия (0.5 мас%) в мягких условиях жидкофазной реакции (2 МПа, 90°С) при конверсии хлорбензола 50–60% (время реакции 5 ч). Показано, что катализатор на носителе из сапропеля минерального типа после его активации в среде водяного пара, обладающий мезопористой структурой, продемонстрировал активность выше, чем катализаторы на основе органического сапропеля.

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Елена Николаевна Терехова

Институт катализа СО РАН

Email: e.terechova@ihcp.ru
ORCID iD: 0000-0001-8555-8043

Центр новых химических технологий, к.х.н.

Russian Federation, 644040, г. Омск, ул. Нефтезаводская, д. 54

Ольга Борисовна Бельская

Институт катализа СО РАН

Author for correspondence.
Email: e.terechova@ihcp.ru
ORCID iD: 0000-0002-7650-880X

Центр новых химических технологий, к.х.н.

Russian Federation, 644040, г. Омск, ул. Нефтезаводская, д. 54

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2. Fig. 1. Images obtained by transmission electron microscopy of samples of carbon-mineral materials synthesized from mineral (a, b) and organic (c, d) sapropels.

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3. Fig. 2. Hydrogen absorption curves (2 MPa, 90°C, 30 min, ethanol:water = 1:1) using palladium catalysts supported on a carbon-mineral carrier, obtained: 1 - carbonization of mineral-type sapropel; 2 - carbonization of mineral type sapropel, activated by water vapor; 3 - carbonization of organic type sapropel; 4 - carbonization of organic type sapropel, activated by water vapor; 5 — carbonization of mineral-type sapropel (the hydrodechlorination reaction was carried out: 1–4 — in the presence of NaOH, 5 — in the absence of NaOH).

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