30 Articles found
Springer-Verlag GmbH Articles
-
Price Volatility and Banking in Green Certificate Markets
There is concern that prices in a market for Green Certificates (GCs) primarily based on volatile wind power will fluctuate excessively, leading to corresponding volatility of electricity prices. Applying a rational expectations simulation model of ...
-
Recent carbon and nitrogen accumulation and acidification in soils of two Scots pine ecosystems in Southern Germany
Abstract Changes of the soil chemical status during the recent 22–30 years at two historically degraded forest sites in southern Germany (Pfaffenwinkel, Pustert) stocked with mature Scots pine (Pinus sylvestris L.) stands were studied by repeated ...
-
Co-gasification of wood and polyethylene with the aim of CO and H2 production
This article describes the gasification of polyethylene–wood mixtures to form syngas (H2 and CO) with the aim of feedstock recycling via direct fermentation of syngas to ethanol. The aim was to determine the effects of four process parameters on ...
-
Production of hydrogen by steam gasification of dehydrochlorinated poly(vinyl chloride) or activated carbon in the presence of various alkali compounds
Steam gasification of dehydrochlorinated poly(vinyl chloride) (PVC) or activated carbon was carried out in the presence of various alkali compounds at 3.0?MPa and 560°C–660°C in a batch reactor or in a semi-batch reactor with a flow of nitrogen and ...
-
Influence of poly(bisphenol A carbonate) and poly(ethylene terephthalate) on poly(vinyl chloride) dehydrochlorination
Recycling of poly(vinyl chloride) (PVC) waste is a serious problem because of its high chlorine content. Dehydrochlorination of PVC-containing polymer waste produces solid residue char, for which conversion to pyrolysis oil in a petrochemical plant ...
-
Pyrolysis of low-density polyethylene using synthetic catalysts produced from fly ash
Catalytic pyrolysis of low-density polyethylene (LDPE) was investigated using various fly ash-derived silica–alumina catalysts (FSAs). FSAs were prepared by a simple activation method that basically includes NaOH treatment of fly ash by a fusion ...
-
Artificial carbonation for controlling the mobility of critical elements in bottom ash
In municipal solid waste incineration (MSWI), bottom ash, generated at a stoker grate type incinerator, the critical elements were identified in terms of EU regulation. The stabilizing effect of moderate carbonation (pH 8.28 ± 0.03) on critical ...
-
An Overview of Terrestrial Sequestration of Carbon Dioxide: The United States Department of Energy`s Fossil Energy R&D Program
Abstract Increasing concentrations of CO2 and other greenhouse gases (GHG) in the Earth`s atmosphere have the potential to enhance the natural greenhouse effect, which may result in climatic changes. The main anthropogenic contributors to ...
-
Overestimated Biomass Carbon Pools of the Northern mid- and High Latitude Forests
Abstract The biomass carbon (C) stock of forests is one of key parameters for the study of regional and global carbon cycles. Literature reviews shows that inventory-based forest C stocks documented for major countries in the middle and high ...
-
Terrestrial biosphere carbon storage under alternative climate projections
Abstract This study investigates commonalities and differences in projected land biosphere carbon storage among climate change projections derived from one emission scenario by five different general circulation models (GCMs). Carbon storage is ...
-
Hydrogen-rich synthesis gas production from waste wood via gasification and reforming technology for fuel cell application
The purpose of this study was to establish a fuel process for an advanced power generation system in which hydrogen-rich synthesis gas, as the fuel for the molten carbonate fuel cell (MCFC), can be extracted from biomass via gasification and ...
-
The Effect of Risk Characteristics on the Willingness to Pay for Mortality Risk Reductions from Electric Power Generation
The objective of this study is to estimate willingness to pay (WTP) for the reduction of mortality risks caused by fossil fuel (natural gas, coal and oil) versus nuclear electric power generation systems and to examine the influence of risk ...
-
Integral Model for Turbulent Buoyant Jets in Unbounded Stratified Flows Part 2: Plane Jet Dynamics Resulting from Multiport Diffuser Jets
Abstract An integral model for the plane buoyant jet dynamics resulting from the interaction of multiple buoyant jet effluxes spaced along a diffuser line is considered as an extension of the round jet formulation that was proposed in Part I. ...
-
A BME solution of the stochastic three-dimensional Laplace equation representing a geothermal field subject to site-specific information
This work develops a model of the geothermal field in the Nea Kessani region (Greece) by means of the Bayesian maximum entropy (BME) method, which describes the temperature variations across space in the underground geological formations. The ...
-
Estimation of monthly average solar radiation in Libya
In order to estimate the monthly average global radiation, regression equations for eleven stations in Libya are fitted, using monthly average hours of sunshine duration as predictors. Since only eight years of monthly average global radiation are ...
-
Aqueous and vapor phase mercury sorption by inorganic oxide materials functionalized with thiols and poly-thiols
The objective of the study is the development of sorbents where the sorption sites are highly accessible for the capture of mercury from aqueous and vapor streams. Only a small fraction of the equilibrium capacity is utilized for a sorbent in ...
-
Development and integration of new processes consuming carbon dioxide in multi-plant chemical production complexes
Fourteen new energy-efficient and environmentally acceptable catalytic processes have been identified that can use excess high-purity carbon dioxide as a raw material available in a chemical production complex. The complex in the lower Mississippi ...
-
Carbon mass balance methodology to characterize the growth of pigmented marine bacteria under conditions of light cycling
A carbon mass balance methodology employing minimal measurements was applied to heterotrophic and photoheterotrophic marine bacteria grown under constant dilution and exposed to 12-h intervals of light or darkness. Carbon mass balance calculations ...
-
Removal of aqueous phenol using immobilized enzymes in a bench scale and pilot scale three-phase fluidized bed reactor
The main objective of this work was to investigate the removal of aqueous phenol using immobilized enzymes in both bench scale and pilot scale three-phase fluidized bed reactors. The enzyme used in this application was a fungal tyrosinase [E.C. ...
-
Improvement of biohydrogen production and intensification of biogas formation
H2 is considered as the ultimate cleanest energy carrier to be generated from renewable sources. This minireview intends to point out that in addition to this function, biologically produced hydrogen is important for environmental biotechnological ...