The HüGaProp‐Container: Analytical Infrastructure for the Carbon2Chem® Challenge

Abstract

The utilization of industrial off‐gases as raw material requires a detailed knowledge on their time‐depending composition, especially with regard to trace components. Within the framework of the HüGaProp project (Hüttengas Properties) a measuring container and the analytical methods for the characterization of trace components in the three raw metallurgical gases was developed. The mobile container is deployed in the project Carbon2Chem® to characterize the available off‐gases at a steel mill and provide fundamental data to determine the required gas cleaning as well as the background for the further process design.

Influence of Contaminants in Steel Mill Exhaust Gases on Cu/ZnO/Al2O3 Catalysts Applied in Methanol Synthesis

“…This overview can be applied within the Carbon2Chem project to determine the required gas cleaning for using exhaust gases from steel mills as feedstock for methanol synthesis. In combination with the detailed information on trace compounds in these gases an economically efficient purification process can be developed [37]. Within this scope, high O 2 concentrations and other irreversible poisons like H 2 S must be removed from the exhaust gases beforehand.…”

Determination of trace compounds and artifacts in nitrogen background measurements by proton transfer reaction time‐of‐flight mass spectrometry under dry and humid conditions

“…The experiments with the PTR‐QiTOF at the steel mill plant of ThyssenKrupp Steel Europe in Duisburg, Germany, before the relocation of the lab container 35 to the Carbon2Chem technical center 55 were carried out with N 2 5.0 (99.999% purity) and N 2 6.0 (99.9999% purity) purchased from Linde Gas, Duisburg, Germany. Prior to the measurements, the setup comprising the calibration gas generator, the transfer line, the multiport valve (MPV), and the PTR‐QiTOF were heated up to the desired temperatures and simultaneously purged for about 30 min with the respective nitrogen gas quality.…”

“…PTR-MS was developed to determine VOCs in air and has found application in a variety of fields such as breath analysis, 19,20 environmental science, 18,[21][22][23] life 18,20 and food science, [24][25][26] process monitoring, [27][28][29][30] and studies on industrial or catalytic applications. [31][32][33][34][35][36][37][38][39][40] The main advantage of PTR-MS is its soft ionization of molecules by the primary ion H 3 O + , which implies that the ionmolecule process during the PTR is almost nondissociative. This low fragmentation can be used for the detection of molecules at their molecular mass plus one H + , and thus, it enables the analysis of complex gas mixtures without the need for previous separation methods.…”

Design and Implementation of a Gas Generating System for Complex Gas Mixtures and Calibration Gases

“…Besides providing designed feed gases for performance tests in catalytic reactor setups and gas purification units one focus of the overall setup is to mimic the three metallurgical gases in order to study the fragmentation patterns of relevant VOCs in different gas matrices under dry and humid conditions. This will help the analysis of the real gases carried out on‐site at the still mill plant from ThyssenKrupp Steel Europe in Duisburg, Germany, using a PTR‐TOF‐MS instrument . All these experiments will be carried out in the Carbon2Chem® laboratory located at the facilities of the Fraunhofer Institute UMSICHT in Oberhausen, Germany.…”

“…Conducting a systematic study on crude gas composition of steel mill process gases in combination with the direct application of these gases in gas purification as well as catalytic processes can deliver important insights and knowledge toward design of stable and active catalysts and also efficient flue gas purification technologies. The information of the characterization of traces in the three metallurgical gases gathered on-site at a steel mill plant [21] served as a basis for the design of the complex gas generating system.…”