STUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID

CO2 accumulation in the atmosphere has caused global temperature rise and the phenomenon of global warming. Therefore, the atmospheric concentration of CO2 must be minimized to alleviate the effect of global warming. Currently, several technologies such as carbon capture and storage (CCS), CO2-en...

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Main Author: Angkasa, Albert
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/48569
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:48569
spelling id-itb.:485692020-06-29T21:54:57ZSTUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID Angkasa, Albert Indonesia Final Project CO2 electrochemical reduction, Cathode geometry, Formic acid, Microbubble INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/48569 CO2 accumulation in the atmosphere has caused global temperature rise and the phenomenon of global warming. Therefore, the atmospheric concentration of CO2 must be minimized to alleviate the effect of global warming. Currently, several technologies such as carbon capture and storage (CCS), CO2-enhanced oil recovery (EOR), and coal bed methane recovery (CBM) have been developed in order to abate CO2 emission from fossil fuel combustion. Thus, this experiment is intended to reduce CO2 electrochemically to produce formic acid which is highly used as a feedstock in many chemical processes. In this research, electroreduction of CO2 gas was carried out using Pb-Sn cathode, Pt-Ir anode, KHCO3 catholyte, and diluted H2SO4 anolyte. CO2 gas was dissolved in catholyte by means of microbubbling. The bubble size and the electrode geometry were used as variables of this experiment. The produced formic acid was analyzed with fouriertransform infrared spectroscopy (FTIR). The cathode was examined with scanning electrode microscope (SEM-EDX), preceding and following the electrolysis. The FTIR characterisation shows that CO2 electrolysis produces formic acid. Data of electrolysis current displays that microbubble usage theoretically produces 45,3% more formic acid than millibubble usage. Usage of cathode with the diameter of 0,5 cathode chamber diameter theoretically produces 26,3% more formic acid, compared to usage of cathode with the diameter of 0,25 cathode chamber diameter. Furthermore, the data log of the electric current to time displays that the current declines over time due to the formation of oxide layer on the cathode. text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
description CO2 accumulation in the atmosphere has caused global temperature rise and the phenomenon of global warming. Therefore, the atmospheric concentration of CO2 must be minimized to alleviate the effect of global warming. Currently, several technologies such as carbon capture and storage (CCS), CO2-enhanced oil recovery (EOR), and coal bed methane recovery (CBM) have been developed in order to abate CO2 emission from fossil fuel combustion. Thus, this experiment is intended to reduce CO2 electrochemically to produce formic acid which is highly used as a feedstock in many chemical processes. In this research, electroreduction of CO2 gas was carried out using Pb-Sn cathode, Pt-Ir anode, KHCO3 catholyte, and diluted H2SO4 anolyte. CO2 gas was dissolved in catholyte by means of microbubbling. The bubble size and the electrode geometry were used as variables of this experiment. The produced formic acid was analyzed with fouriertransform infrared spectroscopy (FTIR). The cathode was examined with scanning electrode microscope (SEM-EDX), preceding and following the electrolysis. The FTIR characterisation shows that CO2 electrolysis produces formic acid. Data of electrolysis current displays that microbubble usage theoretically produces 45,3% more formic acid than millibubble usage. Usage of cathode with the diameter of 0,5 cathode chamber diameter theoretically produces 26,3% more formic acid, compared to usage of cathode with the diameter of 0,25 cathode chamber diameter. Furthermore, the data log of the electric current to time displays that the current declines over time due to the formation of oxide layer on the cathode.
format Final Project
author Angkasa, Albert
spellingShingle Angkasa, Albert
STUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID
author_facet Angkasa, Albert
author_sort Angkasa, Albert
title STUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID
title_short STUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID
title_full STUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID
title_fullStr STUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID
title_full_unstemmed STUDY OF MICROBUBBLE FOR ELECTROCHEMICAL REDUCTION OF CO2 TO FORMIC ACID
title_sort study of microbubble for electrochemical reduction of co2 to formic acid
url https://digilib.itb.ac.id/gdl/view/48569
_version_ 1822000150381330432