Investigation of trace components in autothermal gas reforming processes

Trace component analysis in gasification processes are important part of elemental component balances in order to understand the fate of these participating compounds in the feedstock. Residual traces in the raw synthesis gas after quench could bring about the poisoning of catalysts and corrosion ef...

Full description

Bibliographic Details
Main Author: Muritala, Ibrahim Kolawole
Other Authors: Technischen Universität Bergakademie Freiberg, Maschinenbau, Verfahrens- und Energietechnik
Format: Doctoral Thesis
Language:English
Published: Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola" 2018
Subjects:
Online Access:http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-232005
http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-232005
http://www.qucosa.de/fileadmin/data/qucosa/documents/23200/Muritala%20-%2003112017_Official_1b.pdf
id ndltd-DRESDEN-oai-qucosa.de-bsz-105-qucosa-232005
record_format oai_dc
spelling ndltd-DRESDEN-oai-qucosa.de-bsz-105-qucosa-2320052018-01-11T03:26:26Z Investigation of trace components in autothermal gas reforming processes Muritala, Ibrahim Kolawole Erdgasreformierung Synthesegaszusammensetzung Quenchwasser Temperatureinfluss Hochdruck Partialoxidation pH-Wert-Regelung Spurenstoffe Spurenanalytik Produktsynthesegas Heißgas Rohgas Quenchwasseranalyse Gasbehandlung Synthesegasqualität Gas-zu-Flüssigkeiten Natural gas reforming Syngas composition Quench water Temperature influence High pressure Partial oxidation pH regulation trace compounds trace analysis product synthesis gas hot gas raw gas quench water analysis gas treatment syngas quality gas-to-liquids ddc:620 Synthesegas Gasproduktion Oxidation Prozessoptimierung Simulation Reformieren <Chemie> Gaszusammensetzung Spurenstoff Quenching Temperaturabhängigkeit Kennzahl Trace component analysis in gasification processes are important part of elemental component balances in order to understand the fate of these participating compounds in the feedstock. Residual traces in the raw synthesis gas after quench could bring about the poisoning of catalysts and corrosion effects on plant facilities. The objective of this work is to investigate the effects of quenching operation on the trace components during test campaigns of the autothermal non-catalytic reforming of natural gas (Gas-POX) mode in the HP POX (high pressure partial oxidation) test plant. In order to achieve this, Aspen Plus simulation model of the quench chamber of the HP POX test plant was developed to re-calculate the quench chamber input amount of different trace compounds from their output amount measured during test points of the Gas-POX campaigns. Variation in quench water temperatures from 130 °C to 220 °C and pH value of quench water as well as the resulting variation in Henry´s and Dissociation constant of the traces (CO2, H2S, NH3 and HCN) changed the distribution of traces calculated in the quench water. The formation of traces of organic acid (formic acid and acetic acid) and traces of BTEX, PAHs and soot in the quench water effluent were discussed. The discrepancies between equilibrium constant and reaction quotient (non-equilibrium or real) for the formation of NH3 and HCN at the exit of the gasifier were discussed. The assessment of the results in this work should lead to the improvement in the understanding of trace components and concepts that could be employed to influence their formation and reduction. Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola" Technischen Universität Bergakademie Freiberg, Maschinenbau, Verfahrens- und Energietechnik Professor Dr.-Ing. Bernd Meyer Professor Dr.-Ing. Bernd Meyer Professor Dr. Philipp Brüggemann 2018-01-10 doc-type:doctoralThesis application/pdf http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-232005 urn:nbn:de:bsz:105-qucosa-232005 http://www.qucosa.de/fileadmin/data/qucosa/documents/23200/Muritala%20-%2003112017_Official_1b.pdf eng
collection NDLTD
language English
format Doctoral Thesis
sources NDLTD
topic Erdgasreformierung
Synthesegaszusammensetzung
Quenchwasser
Temperatureinfluss
Hochdruck
Partialoxidation
pH-Wert-Regelung
Spurenstoffe
Spurenanalytik
Produktsynthesegas
Heißgas
Rohgas
Quenchwasseranalyse
Gasbehandlung
Synthesegasqualität
Gas-zu-Flüssigkeiten
Natural gas reforming
Syngas composition
Quench water
Temperature influence
High pressure
Partial oxidation
pH regulation
trace compounds
trace analysis
product synthesis gas
hot gas
raw gas
quench water analysis
gas treatment
syngas quality
gas-to-liquids
ddc:620
Synthesegas
Gasproduktion
Oxidation
Prozessoptimierung
Simulation
Reformieren <Chemie>
Gaszusammensetzung
Spurenstoff
Quenching
Temperaturabhängigkeit
Kennzahl
spellingShingle Erdgasreformierung
Synthesegaszusammensetzung
Quenchwasser
Temperatureinfluss
Hochdruck
Partialoxidation
pH-Wert-Regelung
Spurenstoffe
Spurenanalytik
Produktsynthesegas
Heißgas
Rohgas
Quenchwasseranalyse
Gasbehandlung
Synthesegasqualität
Gas-zu-Flüssigkeiten
Natural gas reforming
Syngas composition
Quench water
Temperature influence
High pressure
Partial oxidation
pH regulation
trace compounds
trace analysis
product synthesis gas
hot gas
raw gas
quench water analysis
gas treatment
syngas quality
gas-to-liquids
ddc:620
Synthesegas
Gasproduktion
Oxidation
Prozessoptimierung
Simulation
Reformieren <Chemie>
Gaszusammensetzung
Spurenstoff
Quenching
Temperaturabhängigkeit
Kennzahl
Muritala, Ibrahim Kolawole
Investigation of trace components in autothermal gas reforming processes
description Trace component analysis in gasification processes are important part of elemental component balances in order to understand the fate of these participating compounds in the feedstock. Residual traces in the raw synthesis gas after quench could bring about the poisoning of catalysts and corrosion effects on plant facilities. The objective of this work is to investigate the effects of quenching operation on the trace components during test campaigns of the autothermal non-catalytic reforming of natural gas (Gas-POX) mode in the HP POX (high pressure partial oxidation) test plant. In order to achieve this, Aspen Plus simulation model of the quench chamber of the HP POX test plant was developed to re-calculate the quench chamber input amount of different trace compounds from their output amount measured during test points of the Gas-POX campaigns. Variation in quench water temperatures from 130 °C to 220 °C and pH value of quench water as well as the resulting variation in Henry´s and Dissociation constant of the traces (CO2, H2S, NH3 and HCN) changed the distribution of traces calculated in the quench water. The formation of traces of organic acid (formic acid and acetic acid) and traces of BTEX, PAHs and soot in the quench water effluent were discussed. The discrepancies between equilibrium constant and reaction quotient (non-equilibrium or real) for the formation of NH3 and HCN at the exit of the gasifier were discussed. The assessment of the results in this work should lead to the improvement in the understanding of trace components and concepts that could be employed to influence their formation and reduction.
author2 Technischen Universität Bergakademie Freiberg, Maschinenbau, Verfahrens- und Energietechnik
author_facet Technischen Universität Bergakademie Freiberg, Maschinenbau, Verfahrens- und Energietechnik
Muritala, Ibrahim Kolawole
author Muritala, Ibrahim Kolawole
author_sort Muritala, Ibrahim Kolawole
title Investigation of trace components in autothermal gas reforming processes
title_short Investigation of trace components in autothermal gas reforming processes
title_full Investigation of trace components in autothermal gas reforming processes
title_fullStr Investigation of trace components in autothermal gas reforming processes
title_full_unstemmed Investigation of trace components in autothermal gas reforming processes
title_sort investigation of trace components in autothermal gas reforming processes
publisher Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola"
publishDate 2018
url http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-232005
http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-232005
http://www.qucosa.de/fileadmin/data/qucosa/documents/23200/Muritala%20-%2003112017_Official_1b.pdf
work_keys_str_mv AT muritalaibrahimkolawole investigationoftracecomponentsinautothermalgasreformingprocesses
_version_ 1718603838376640512