H2020Индивидуална стипендия2021–2023

KinGrad-OCM · Advancing reaction kinetics of Oxidative Coupling of Methane by operando spatiotemporal reactor analysis

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2021-06-01 → 2023-08-31
Финансиране от ЕС: 187 572 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Окислителното свързване на метана се анализира чрез проследяване на температурата и концентрацията на веществата директно в реактора. Това помага за по-доброто разбиране на химичните процеси, което е важно за създаването на по-екологични методи в химическата индустрия.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Advancing reaction kinetics of Oxidative Coupling of Methane by operando spatiotemporal reactor analysis

Chemical industry is required to be more sustainable and carbon neutral, which depends on the feasibility of new processes/improvement of existing ones. Catalysts, being the heart of most of chemical processes, are pivotal to achieve such a goal. Understanding catalyst performance and reaction kinetics under real operation conditions is vital for the effective design of catalysts. Current methodologies in heterogeneous catalysis for evaluating catalytic performance and extracting kinetic information, assume the chemical reactor to be a magical working black-box without molecular and detailed insights in the reactor. However, reality is more complex, with many physicochemical processes taking place inside the chemical reactor at different time and length scales. Oxidative coupling of methane (OCM), a highly exothermic reaction involving a complex reaction mechanism, is a good example of such complexity. Disentangling the multiple physicochemical phenomena and understanding their contributions to the overall catalytic performance, with the aim to investigate detailed reaction mechanisms and kinetics, constitutes a great challenge. This project has as an overall objective the study of the OCM reaction through the physicochemical gradients at reactor scale (i.e. spatially resolved concentration profiles for reactant and products, temperature profiles in the catalyst bed). To do this, an experimental methodology based on the use of operando spatial reactor analysis techniques was implemented.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Abundant availability of methane makes this compound being a potential substitute to crude oil for ethylene production if such chemical conversion is feasible. The direct transformation of methane into olefins via Oxidative Coupling of Methane (OCM) is nowadays still considered as a “dream” reaction for the direct production of ethylene from methane. This process remains a huge challenge in chemical engineering research. A better understanding on how the reaction proceeds in space and time in the reactor (mechanism and kinetics of the process) and the development of advanced efficient catalysts are crucial steps to achieve the industrial implementation of the process. The traditional methodology to evaluate catalytic performance and addressing kinetic analyses, which consists on the assumption of a constant temperature for the catalytic bed and the evaluation of the gas composition at the reactor outlet, seems not to be a suitable strategy for chemical processes such as OCM. KinGrad-OCM aims to set up a new methodological approach based on the application of operando spatial reactor analysis techniques for the study of the OCM reaction both in conventional furnace heated and microwave-assisted reactors. A particular focus is given to the assessment of reaction kinetic by the operando spatial reactor analysis through the physicochemical gradients present in the reactors. The successful application of the gradient approach, proposed in KinGrad-OCM, for assessing kinetic studies will yield a new perspective to both catalyst and reactor design not only for the OCM process but also for other complex chemical reactions.

Оригинален текст от CORDIS (на английски).

Участници

TECHNISCHE UNIVERSITEIT DELFT · DelftКоординаторНидерландия