Utilization of Carbon Dioxide in Coal Gasification—An Experimental Study

Zdeb, Janusz; Howaniec, Natalia; Smoliński, Adam

doi:10.3390/en12010140

Cited by 22 publications

(17 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the last few years, the concept of carbon capture and utilization has become of great interest for the chemical industry as it represents a technological solution that aims to prevent CO 2 emissions by converting them into value-added chemicals [3,4]. Exploring ways to give added value to this CO 2 has gained attention during the last few years, and a wide range of chemical and biological methods have already been put forward for its valorization [5].…”

Section: Introductionmentioning

confidence: 99%

Enhanced CO2 Conversion to Acetate through Microbial Electrosynthesis (MES) by Continuous Headspace Gas Recirculation

et al. 2019

View full text Add to dashboard Cite

Bioelectrochemical systems (BESs) is a term that encompasses a group of novel technologies able to interconvert electrical energy and chemical energy by means of a bioelectroactive biofilm. Microbial electrosynthesis (MES) systems, which branch off from BESs, are able to convert CO2 into valuable organic chemicals and fuels. This study demonstrates that CO2 reduction in MES systems can be enhanced by enriching the inoculum and improving CO2 availability to the biofilm. The proposed system is proven to be a repetitive, efficient, and selective way of consuming CO2 for the production of acetic acid, showing cathodic efficiencies of over 55% and CO2 conversions of over 80%. Continuous recirculation of the gas headspace through the catholyte allowed for a 44% improvement in performance, achieving CO2 fixation rates of 171 mL CO2 L−1·d−1, a maximum daily acetate production rate of 261 mg HAc·L−1·d−1, and a maximum acetate titer of 1957 mg·L−1. High-throughput sequencing revealed that CO2 reduction was mainly driven by a mixed-culture biocathode, in which Sporomusa and Clostridium, both bioelectrochemical acetogenic bacteria, were identified together with other species such as Desulfovibrio, Pseudomonas, Arcobacter, Acinetobacter or Sulfurospirillum, which are usually found in cathodic biofilms. Moreover, results suggest that these communities are responsible of maintaining a stable reactor performance.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhanced CO2 Conversion to Acetate through Microbial Electrosynthesis (MES) by Continuous Headspace Gas Recirculation

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Carbon dioxide stored in porous geological formations is perceived almost exclusively as waste in light of Polish legislation and current technological development. Within the framework of Polish legislation, the concept of waste was set out in the Act of 14 December 2012 On Waste (consolidated text of 15 March 2019 Journal of Laws of 2019, item 701) [22]. The Act on Waste precisely lays down the measures aiming at the protection of the natural environment and human health by means of preventing or mitigating the adverse impacts of the generation and management of waste.…”

Section: Introductionmentioning

confidence: 99%

“…However, the legislator singled out a few exceptions, in the case of which the provisions of the act do not apply. Carbon dioxide designated for underground storage in order to execute a CCS demonstration project constitutes such an exception as stipulated by the Geological and Mining Law Act of 9 June 2011, article 1, item 3 (consolidated text of 4 April 2019, Journal of Laws of 2019, item 868) [22].…”

Section: Introductionmentioning

confidence: 99%

Research on the Processes of Injecting CO2 into Coal Seams with CH4 Recovery Using Horizontal Wells

et al. 2020

Self Cite

View full text Add to dashboard Cite

The paper presents a research study on modeling and computer simulation of injecting CO2 into the coal seams of the Upper Silesian Coal Basin, Poland connected with enhanced coal bed methane (ECBM) recovery. In the initial stage of the research activities, a structural parameter model was developed specifically with reference to the coal-bearing formations of the Upper Carboniferous for which basic parameters of coal quality and the distribution of methane content were estimated. In addition, a lithological model of the overall reservoir structure was developed and the reservoir parameters of the storage site were analyzed. In the next stage of the research, the static model was supplemented with detailed reservoir parameters as well as the thermodynamic properties of fluids and complex gases. The paper discusses a series of simulations of an enhanced coalbed methane recovery process with a simultaneous injection of carbon dioxide. The analyses were performed using the ECLIPSE software designed for simulating coal seam processes. The results of the simulations demonstrated that the total volume of CO2 injected to a designated seam in a coal mine during the period of one year equaled 1,954,213 sm3. The total amount of water obtained from the production wells during the whole period of the simulations (6.5 years) was 9867 sm3. At the same time, 15,558,906 sm3 of gas was recovered, out of which 14,445,424 sm3 was methane. The remaining 7% of the extracted gas was carbon dioxide as a result of reverse production of the previously injected CO2. However, taking into consideration the phenomena of coal matrix shrinking and swelling, the total amount of injected CO2 decreased to approximately 625,000 sm3.

show abstract

“…The usage of coal in the energy production needs the execution of well organised technologies to meet the dual targets of increased energy efficiency and also minimise the carbon footprint. Various attempts are being made to advance the gasification systems with lower units of emission of CO2 and other contaminants, and pliable in-terms of product generated 7 . Coal gasification is the thermochemical processwhich produces electricity with higher conversion efficiency than conventional power methods with significant reduction in the emission products like CO 2 , NO X, SO X and particulate matter i.e.…”

mentioning

confidence: 99%

“…conversion of carbonaceous feedstock into carbon monoxide, hydrogen and other byproducts 8 . The gasification technologies have been executed for several decades with entrained flow, fluidized bed and moving bed reactors and comprised the coal as the major feedstock 9 .This gasification reaction takes place inside the gasifier in which limited amount of oxygen is passed, the carbonaceous fuel reacts with this oxygen and steam and at elevated temperature higher than 750 0 C and pressure of order of 30 bar to produce syngas and other by-products. This syngas is then used for the production of the energy 8 .…”

mentioning

confidence: 99%