Webinars & Conference Presentations
It is generally well accepted that an increase in anthropogenic emissions is a leading cause of the increase in levels of carbon dioxide (CO2) , one of the greenhouse gases , in the atmosphere. Generation of electrical power is responsible for a roughly 40% of these emissions. Design...Read more
Introduction
Chemical looping is one of several emerging technology options capable to reduce the carbon dioxide emissions and helping in a diverse range of applications for production of fuels , chemicals and electricity [1-3]. In a general chemical looping process
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In order to model the growth of microalgae in a open-pond reactor , a 1000L system has been built and operated under realistic outdoor conditions. Environmental data (light intensity , temperature , pH) were captured with a datalogger and the growth was measured. A phenomenological mathematical...Read more
Thermal DeOxygenation (TDO) refers to a simple , non-catalytic , process which produces highly deoxygenated crude oils from levulinic and formic acids formed by acid hydrolysis of biomass feedstocks. The TDO reaction is a single-step decomposition reaction which converts the neutralized...Read more
The increase in greenhouse gasses concentration in the atmosphere has contributed to global warming in recent decades. Carbon sequestration is one of the solutions to control the CO2 concentration in atmosphere. A pH-swing mineral carbonation is the
A multiple-gas cleanup process is proposed for the removal of CO2, SOx and NOx from coal combustion flue gas. This cleanup occurs at high temperatures (500-650 °C) in a single-stage gas-solid fluidized-bed reactor. This process
Performance of accelerated carbonation by basic oxygen furnace slag (BOFS) in a rotating packed bed (RPB) was evaluated in this investigation. The design of experiments (DOE) was introduced to evaluate the effect of different operating parameters including reaction time , particle size of...Read more
Dry reforming of methane for the production of hydrogen and syngas has attracted much attention from both industrial and environmental aspects. The major problem encountered in the application of this process is the rapid deactivation of the catalyst , which is mainly due to coke accumulation...Read more
The interest in hydrogen , regarded as a new clean energy carrier , has been increasing with the expectation for the upcoming hydrogen economy. In the hydrogen economy , hydrogen can replace the conventional fuels which have caused pollution problems. As one of the methods for mass production of...Read more
Due to the tunable structures and functionalities of ionic liquids (ILs) , current research efforts have introduced several unique materials for industrial applications , including solvents and media for CO2 capture. Fundamental conclusions and aspects of these IL materials and their...Read more
It is estimated that the heavy-duty diesel vehicles (HDDVs) contribute to approximately 30 % of the total emissions of nitrogen oxides (NOx) and particulate matters (PM) coming from the transport sector [1]. It is estimated that approximately 30 – 40 % of the engine run time is in idling mode [1...Read more
Currently ceria is a favored material within the concentrated solar power fuels community. The kinetic mechanisms responsible for ceria’s catalytic activity have been studied in great detail at lower temperatures and under numerous chemical environments. However , there is a critical gap in the...Read more
Elecrticity generation in power plants account for more than 73% of the total stationary CO2 emissions in the United States [1]. While carbon capture , utilization and storage (CCUS) is an enabling technology to reduce CO2 emissions from power plants , the costs of CO2 capture and compression ,...Read more
Oxy-combustion is a competitive technology to enable the capture of CO2 from coal based power plants. The reduction in power efficiency and the increment of investment cost are less than (or at least comparable to) other CO2 capture technologies. The emissions of both SOx and NOx can also be...Read more
Sustainability since its original conceptualization is considered to have four dimensions; social; economic; environmental and institutional. It is simply the improved management of natural resources within a business establishment to provide economic and social benefits to the business and its...Read more
The U.S. Department of Energy’s Carbon Capture Simulation Initiative (CCSI) was initiated in 2010 to develop and deploy state-of-the-art computational modeling and simulation tools to accelerate the development of carbon capture technology.The first components of the CCSI Toolset have been...Read more
CO2-Binding Organic Liquids (CO2BOLs) are a class of second-generation non-aqueous chemically selective CO2-separating solvents. CO2BOLs are unique in that in the absence of a co-solvent they are the only solvents that remain a liquid and in the process undergo dramatic changes in polarity with...Read more
In order to dramatically reduce CO2 emissions from coal-fired power plants , and mitigate their impact on global climate change , DOE has called for technologies that can capture at least 90% of CO2 emissions from an existing coal-fired power plant with no more than a 35% increase in the cost of...Read more
Pulverized coal (PC) power plants emit CO2 in flue gas at atmospheric pressure with a volume concentration of 10-15%. Post-combustion capture of CO2 is a challenging application but has the greatest near-term potential , because it can be retrofitted to existing state-of-the-art power plants....Read more
Membrane technology provides a promising approach for CO2 capture from post-combustion flue gas due to its smaller footprint and potentially lower energy cost than the traditional amine scrubbing process. Thin inorganic membranes with high selectivity and flux have been conventionally...Read more
TDA Research , Inc (TDA) is developing a low cost , high capacity CO2 adsorbent and demonstrating its technical and economic viability for post-combustion CO2 capture for existing pulverized coal-fired power plants under a 3-year DOE funded project. TDA uses an advanced physical adsorbent...Read more
Industrial carbon nanotubes (I-CNTs) is a low-cost substitute for commercially available multi-walled carbon nanotubes (CCNTs). In this work , I-CNTs were functionalized with tetraethylenepentamine (TEPA) for CO2 capture. The performance of I-CNTs-TEPA was compared with that of CCNTs. It was...Read more
Solid sorbent technologies for CO2 capture have several advantages over the traditional amine-based solvent absorption approaches. For instance , within an adsorption-based approach water is absent , which decreases the energy requirements associated with regeneration since heating a large...Read more
This Webinar presents the need for natural gas liquefaction (LNG), the LNG value chain, and compares several technologies such as the PRICO® single mixed refrigerant process. Read more
Post-spinning infusion of poly(ethyleneimine) into polymer/silica hollow fiber sorbents for CO2/N2 gas separation
Ying Labreche1, Ryan P. Lively2, Fateme Rezaei1, Grace Chen1, David S. Sholl1, Christopher...Read more
Coal was responsible for 41% of global energy related CO2 emissions in 2005 and is expected to be responsible for 44% in 2030 [1]. Power generation is the largest application of coal and amounts to more than 40% of the annual coal consumption in the world [1]. Thus coal based power...Read more
USEPA began regulating the emissions of greenhouse gases (GHGs) in major source permits beginning Jan 2nd, 2011. Their long-awaited GHG BACT guidance was issued about two years ago on Nov 10, 2010 and included over 450-pages of guidance and sector-specific whitepapers (seven sectors...Read more
Removal of heavy hydrocarbons, such as C6+ from natural gas is essential prior to cryogenic liquefaction in order to prevent freeze-out of these components in the liquefier. Traditionally, cryogenic methods such as passing feed gas through a scrub column or a front-end NGL...Read more
CO2 - Ionic Liquids synergies: Reactive capture and conversion of CO2 to chemicals
Valerie Etaa, Pasi Virtanena,