Contribution to the research and development of radiation chambers in steam reforming. Method for projecting primary reformer radiation chamber based on reactor modelling

1991 ◽  
Vol 56 (4) ◽  
pp. 847-857
Author(s):  
Petr Stehlík
Keyword(s):  
Research And Development ◽  
Steam Reforming ◽  
Chemical Processes ◽  
Tube System ◽  
Balance Calculation ◽  
Simulation Calculation

A method for projecting radiation chamber representing an up-to-date method for projecting reaction furnaces based on modelling is described. The project is divided into a preliminary balance calculation, a method for projecting radiation chamber tube system and a simulation calculation of thermal chemical processes. The applicability of the model is illustrated by means of an example. Also principles for projecting radiation chambers of reforming furnaces as well as application spheres of the model to projecting practice are referred to.

Contribution to the Research and Development of Radiation Chambers in Steam Reforming. Problem-Oriented Application of a Fuzzy Expert System

1992 ◽  
Vol 57 (10) ◽  
pp. 2125-2134 ◽  
Author(s):  
Petr Stehlík ◽  
František Babinec
Keyword(s):  
Carbon Dioxide ◽  
Mathematical Model ◽  
Expert System ◽  
Service Life ◽  
Research And Development ◽  
Steam Reforming ◽  
Methane Conversion ◽  
Chemical Processes ◽  
Fuzzy Expert System ◽  
Present Contribution

An application of a fuzzy expert system intended for estimating some parameters of steam reforming can also be one of the examples of an ever increasing utilization of expert systems in practice. The present contribution deals with the method making use of a verified mathematical model for simulating thermal chemical processes in reforming furnace radiation chamber in order to create knowledge base. This base includes linguistic values of selected independent and dependent variable quantities. Examples given illustrate an evaluation of dependent variable quantities (methane conversion into carbon dioxide and monoxide, reaction tube service life) by means of the said expert system based on queries.

scholarly journals A Decade of Successful Collaborations in Nutritional Compound Process Research and Development

2021 ◽  
Vol 75 (11) ◽  
pp. 957-966
Author(s):  
Werner Bonrath ◽  
Roman Goy ◽  
Ulla Létinois ◽  
Marc-André Müller ◽  
Thomas Netscher ◽  
...  
Keyword(s):  
Research And Development ◽  
Chemical Processes ◽  
Process Research ◽  
Development Projects ◽  
Chemical Transformations ◽  
Academic Institutions ◽  
Catalytic Systems ◽  
The Past ◽  
Compound Process ◽  
Synthetic Routes

Collaborations between academia and industry are vital for modern industrial research and development projects, combining the best of both worlds to develop sustainable chemical processes. Herein we summarize a number of successful cooperations between DSM Nutritional Products and Swiss academic institutions that have been carried out over approximately the past decade. A wide variety of reactions and processes have been investigated with experts located in Switzerland. New synthetic routes, chemical transformations and reactor concepts have been developed to produce industrially relevant compounds. Additionally the scope of known catalytic systems has been probed and new catalysts showing improved selectivity have been designed, synthesized and tested. We describe how the research was supported by DSM, the parallel in-house investigations and also how the projects were continued and further developed.

scholarly journals Research and development of hydrogen energy systems at the National Research Center «Kurchatov Institute»

2021 ◽  
Vol 23 (2) ◽  
pp. 128-148
Author(s):  
V. N. Fateev ◽  
V. N. Porembsky ◽  
S. A. Grigoriev ◽  
I. E. Baranov ◽  
S. V. Ostrovsky ◽  
...  
Keyword(s):  
Research And Development ◽  
Raw Materials ◽  
Environmental Safety ◽  
Chemical Processes ◽  
Research Center ◽  
Solid Polymer ◽  
Hydrogen Energy ◽  
Kurchatov Institute ◽  
Plasma Chemical ◽  
Catalytic Systems

This publication provides a brief overview of the materials of developments in promising areas of hydrogen energy and hydrogen technologies carried out by scientists and specialists at the National Research Center "Kurchatov Institute", in particular: - plasma, plasma-chemical, beam technologies, hydrogen energy technologies to ensure environmental safety and environmental protection, including:methods and technologies based on plasma-chemical processes for the processing and synthesis of organic compounds, modeling of plasma and plasma-chemical processes;development of plasma-melt technologies for gasification of solid organic raw materials, • development of a plasmatron complex for waste processing;elements of hydrogen (atomic-hydrogen) energy, including plasma ones, which ensure an increase in energy efficiency and environmental safety in energy (including renewable energy) in transport; • plasma catalytic systems for the conversion of organic fuels;fuel cells and electrolytic cells with solid polymer electrolyte; • membrane and membrane catalytic systems for hydrogen production and purification;nanostructured electrocatalysts;ensuring hydrogen safety.The Kurchatov Institute is the founder and undisputed leader and coordinator of research and development in our country in a number of key areas of hydrogen energy.

Contribution to the research and development of radiation chambers in steam reforming. Influence of selected parameters on main characteristic quantities

1991 ◽  
Vol 56 (4) ◽  
pp. 831-846 ◽  
Author(s):  
Petr Stehlík
Keyword(s):  
Carbon Dioxide ◽  
Mathematical Model ◽  
Carbon Monoxide ◽  
Steam Reforming ◽  
Outer Surface ◽  
Flue Gas ◽  
Chemical Processes ◽  
Flue Gases ◽  
Maximum Temperature ◽  
Outlet Temperature

By means of a mathematical model simulating thermal chemical processes taking place in primary reformer radiation chamber, the influence of selected parameters on main characteristic quantities in steam reforming process was investigated. The parameters were divided into inlet parameters on flue gas side, inlet parameters on reaction mixture side and those of radiation chamber geometry. As main characteristic quantities outlet temperature of reaction mixture, maximum temperature of reaction tubes outer surface, outlet temperature of flue gases, absorbed heat, methane conversion into carbon dioxide and carbon monoxide as well as temperature distance from equilibrium were chosen.

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