Combined production of power and syngas in an internal combustion engine – Experiments and simulations in SI and HCCI mode

Wiemann, Sebastian; Hegner, Robert; Atakan, Burak; Schulz, Christof; Kaiser, Sebastian

doi:10.1016/j.fuel.2017.11.002

Cited by 64 publications

(18 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polygeneration processes that couple between heat and/or power generation and the production of synthesis gas, fuels, and/or chemical compounds offer efficient and flexible conversion opportunities [373 , [444] , [445] , [446] , [447] , [448] , [449] . HCCI engines have been described as particularly useful and versatile elements for such chemical and energy conversion processes [444] , [445] , [446] , [447] , because it is possible with a single engine combustion process to obtain variable ratios of mechanical work, process heat, and chemicals [444] . Specifically, Banke et al [444] have used the HCCI engine as a reactor for partial oxidation for fuel-rich methane/DME mixtures.…”

Section: Combustion Chemistry and Beyond – A Few Examplesmentioning

confidence: 99%

Combustion in the future: The importance of chemistry

Kohse‐Höinghaus

2021

Proceedings of the Combustion Institute

View full text Add to dashboard Cite

Combustion involves chemical reactions that are often highly exothermic. Combustion systems utilize the energy of chemical compounds released during this reactive process for transportation, to generate electric power, or to provide heat for various applications. Chemistry and combustion are interlinked in several ways. The outcome of a combustion process in terms of its energy and material balance, regarding the delivery of useful work as well as the generation of harmful emissions, depends sensitively on the molecular nature of the respective fuel. The design of efficient, low-emission combustion processes in compliance with air quality and climate goals suggests a closer inspection of the molecular properties and reactions of conventional, bio-derived, and synthetic fuels. Information about flammability, reaction intensity, and potentially hazardous combustion by-products is important also for safety considerations. Moreover, some of the compounds that serve as fuels can assume important roles in chemical energy storage and conversion. Combustion processes can furthermore be used to synthesize materials with attractive properties. A systematic understanding of the combustion behavior thus demands chemical knowledge. Desirable information includes properties of the thermodynamic states before and after the combustion reactions and relevant details about the dynamic processes that occur during the reactive transformations from the fuel and oxidizer to the products under the given boundary conditions. Combustion systems can be described, tailored, and improved by taking chemical knowledge into account. Combining theory, experiment, model development, simulation, and a systematic analysis of uncertainties enables qualitative or even quantitative predictions for many combustion situations of practical relevance. This article can highlight only a few of the numerous investigations on chemical processes for combustion and combustion-related science and applications, with a main focus on gas-phase reaction systems. It attempts to provide a snapshot of recent progress and a guide to exciting opportunities that drive such research beyond fossil combustion.

show abstract

Section: Combustion Chemistry and Beyond – A Few Examplesmentioning

confidence: 99%

Combustion in the future: The importance of chemistry

Kohse‐Höinghaus

2021

Proceedings of the Combustion Institute

View full text Add to dashboard Cite

show abstract

“…Understanding the relevant chemistry is a cornerstone in the choice of fuels and energy storage media that may be useful for systems integration. Recent work on on-board fuel reforming [137], on using IC engines in polygeneration processes for the production of higher-value chemicals [138,139], as an approach for energy conversion and storage [139,140], as well as on co-generation of power and syngas [141] might serve as indications for future opportunities.…”

Section: Perspectivesmentioning

confidence: 99%

A new era for combustion research

Kohse‐Höinghaus

2019

Pure and Applied Chemistry

View full text Add to dashboard Cite

Current topics in combustion chemistry include aspects of a changing fuel spectrum with a focus on reducing emissions and increasing efficiency. This article is intended to provide an overview of selected recent work in combustion chemistry, especially addressing reaction pathways from fuel decomposition to emissions. The role of the molecular fuel structure will be emphasized for the formation of certain regulated and unregulated species from individual fuels and their mixtures, exemplarily including fuel compounds such as alkanes, alkenes, ethers, alcohols, ketones, esters, and furan derivatives. Depending on the combustion conditions, different temperature regimes are important and can lead to different reaction classes. Laboratory reactors and flames are prime sources and targets from which such detailed chemical information can be obtained and verified with a number of advanced diagnostic techniques, often supported by theoretical work and simulation with combustion models developed to transfer relevant details of chemical mechanisms into practical applications. Regarding the need for cleaner combustion processes, some related background and perspectives will be provided regarding the context for future chemistry research in combustion energy science.

show abstract

“…Internal combustion (IC) engines, running in homogeneous charge compression ignition (HCCI) mode, can also be used as chemical reactors for partial oxidation with respect to flexible and versatile energy conversion in polygeneration processes, which was investigated theoretically [35] and experimentally. [36,37] Engines can also be considered for pyrolysis processes, where the endothermal reactions are initiated by the high temperatures at the top dead center (TDC) after compression. In addition, the mixture is diluted with an atomic inert gas to further increase the temperatures and to improve the conversion.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of Methane and Ethane in a Compression–Expansion Process as a New Concept for Chemical Energy Storage: A Kinetic and Exergetic Investigation

Rudolph

Atakan

2021

Energy Tech

Self Cite

View full text Add to dashboard Cite

The production of chemical energy carriers utilizing electrical energy from renewable sources is essential for the future energy system. A motored piston engine may be used as a reactor to convert mechanical to chemical energy by the pyrolysis of methane and ethane; this is analyzed here. The piston engine is modeled as a compression–expansion cycle with detailed chemical kinetics. The main products are hydrogen and high‐energy hydrocarbons such as acetylene, ethylene, and benzene. To reach the required high temperatures for conversion after compression, the educt is diluted with argon. The influence of the operating conditions (temperature, pressure, dilution) on the product gas composition, the stored exergy, and the ratio of exergy gain to work input (efficiency) is investigated. A conversion of >80% is predicted for an argon dilution of 93 mol% at inlet temperatures of 573 K (methane) and 473 K (ethane), respectively. A storage power of 7.5 kW (methane) and 6 kW (ethane) for a 400 ccm four‐stroke single‐cylinder is predicted with an efficiency of 75% (methane) and 70% (ethane), respectively. Conditions are identified, where high yields of the target species are achieved, and soot formation can be avoided.

show abstract

Combined production of power and syngas in an internal combustion engine – Experiments and simulations in SI and HCCI mode

Cited by 64 publications

References 17 publications

Combustion in the future: The importance of chemistry

Combustion in the future: The importance of chemistry

A new era for combustion research

Pyrolysis of Methane and Ethane in a Compression–Expansion Process as a New Concept for Chemical Energy Storage: A Kinetic and Exergetic Investigation

Contact Info

Product

Resources

About