祝贺我司客户在Hydrogen production方向取得进展

第一作者：Viacheslav Papkov, PhD student, GTIIT

通讯作者：Dmitry Pashchenko, Professor, GTIIT

文章名称：《CFD-modeling of steam methane reforming via particle-resolved and pseudo-homogeneous models: comparative analysis with experimental verification》

影响因子：7.8

01、老师简介

Dr. Pashchenko received his Bachelor’s and Master’s degree in Mechanical Engineering with a Distinction honor from Saratov State Technical University, Russia. His PhD degree was received in Mechanical Engineering from Samara State Technical University, Russia.He has more than twelve years of research experience broadly in the area of improving the energy efficiency of various fuel-consuming equipment. The main interest is focused on thermochemical waste-heat recuperation systems. The investigation of such systems is an example of interdisciplinary study. Therefore, his publications include the different scientific fields, such as:Thermodynamics/CFD-modeling/Chemical kinetics/ Combustion/Heat-transfer.He received several scholarships and awards, including the Scholarship of the President of the Russian Federation for Young Scientists and Graduate Students and the Russian Ministry of High Education and Science’s award.His works (more than 90 papers) were mostly published in leading journals of energy engineering, including Energy Conversion and Management, Energy, Fuel, AIChE, International Journal of Heat and Mass transfer, etc.  He served as the guest editor at Catalysts journal (JCR Q2) and reviewer for multiply journals. His h-index is 41 and counting.

Dr. Pashchenko 先后以优异成绩（荣誉学位）获得俄罗斯萨拉托夫国立技术大学机械工程学士和硕士学位，并在俄罗斯萨马拉国立技术大学获得机械工程博士学位。他在提高各类燃料消耗设备能效领域拥有超过十二年的研究经验，主要研究方向为热化学余热回收系统。此类系统的研究属于交叉学科范畴，因此他的研究成果涉及多个学科领域，包括：热力学、计算流体力学（CFD）建模、化学动力学、燃烧学、传热学。他曾获得多项奖学金和奖励，其中包括俄罗斯联邦总统针对青年学者和研究生的奖学金，以及俄罗斯高等教育与科学部颁发的奖项。他的研究成果（发表论文逾90篇）大多发表于能源工程领域的顶级期刊，包括《Energy Conversion and Management》、《Energy》、《Fuel》、《AIChE》、《International Journal of Heat and Mass Transfer》等。他曾担任《Catalysts》期刊（JCR Q2区）的客座编辑，并为多家期刊担任审稿人；其h指数为41，且仍在持续增长。

02、论文研究背景

To conduct a comparative analysis of particle-resolved (PRM) and pseudo-homogeneous (PHM) models for the numerical prediction of steam methane reforming performance. To facilitate this comparison and provide verification of the numerical results, additional experimental tests were conducted on a lab-scale fixed-bed reactor filled with industrial Ni-Al2O3 catalyst particles. The presented work is the first study where a comparative analysis of two models for predicting SMR process characteristics is carried out. In this work, for the first time, a series of experiments and numerical calculations for PHM and PRM for an isothermal reformer wall are presented, which allows for a clear understanding of the influence of the model on the results for different reformer operating modes.

为了对颗粒解析模型（PRM）和拟均相模型（PHM）在蒸汽甲烷重整（SMR）性能数值预测方面的应用进行对比分析，本研究在实验室规模的固定床反应器上开展了补充实验测试，反应器内填充工业Ni-Al₂O₃催化剂颗粒，旨在为模型比较提供验证依据，并对数值计算结果进行校核。

本研究是第一次针对预测SMR过程特性的两种模型进行对比分析的工作。同时，本研究第一次在等温重整器壁面条件下，开展了一系列实验以及PHM和PRM的数值计算，从而能够清晰地揭示在不同重整器运行模式下，模型选择对计算结果的影响。

03、论文亮点/摘要

Steam methane reforming (SMR) is a widely used process for hydrogen and synthesis gas production. The experimental and numerical approaches are employed to understand and predict SMR performances. Among the numerical approaches, there are two main models: pseudo-homogeneous model (PHM) and particle-resolved model (PRM). In this paper, a comparative analysis of PHM and PRM for the numerical simulation of SMR was conducted. To verify the numerical results, experimental tests were performed in a lab-scale electrified reformer. Both numerical and experimental tests were carried out for two cases: with and without heat supply through the wall. It was established that PHM and PRM accurately predict temperature and methane conversion for the case with an adiabatic wall (no heat flux through the wall). The maximum deviation for temperature and methane conversion is less than 10%. However, for the case with heat supply through the wall, the discrepancy between results obtained via PHM and PRM increases with rising temperature and residence time. For an inlet temperature of 1200K, the discrepancy can be as much as 200K. Such discrepancies were explained, with one possible reason being the difference in the nature of heat transfer in cases with and without heat supply through the wall.

蒸汽甲烷重整（SMR）是一种广泛应用的制氢和合成气生产工艺。为理解和预测SMR性能，研究采用了实验与数值模拟两种方法。在数值模拟方法中，主要有两类模型：拟均相模型（PHM）和颗粒解析模型（PRM）。本文对PHM和PRM在SMR数值模拟中的应用进行了对比分析。为验证数值计算结果，在实验室规模的电加热重整器上开展了实验测试。数值计算和实验均在两种工况下进行：有壁面供热和无壁面供热。结果表明，在绝热壁面（壁面无热流通过）工况下，PHM和PRM均能准确预测温度和甲烷转化率，温度和甲烷转化率的最大偏差小于10%。然而，在有壁面供热的工况下，PHM和PRM计算结果的偏差随温度和停留时间的升高而增大。当入口温度为1200K时，偏差可达200K。对这一偏差进行了解释，其中可能的原因之一是有/无壁面供热工况下传热性质的差异。

04、图文展示

05、本文所用设备

Dr. Pashchenko 课题组在实验中所用氨分解固定床反应器由科幂仪器提供，论文中也特别提到安徽科幂仪器有限公司，在此非常感谢老师对科幂仪器的选择和认可。