Potential Of Ozone Treatment As A pollution Control Method For Gaseous Effluents From Internal Combustion Engines.

Internal combustion engines are widely used as mobile units in the transport sector and commercially used as stationary units in the power production and agricultural sectors. Emissions from internal combustion engines usually consist of oxides of nitrogen, carbon dioxide, carbon monoxide, sulphnr dioxide, and un-combusted hydrocarbons in addition to unconverted oxygen and nitrogen

Co2 Emission And Carbon Capture For Coal Fired Power Plants In Malaysia And Indonesia.

Coal consumption in Malaysia and Indonesia is growing at the rate of 9.7 and 4.7% per year since 2002, respectively. The increase in coal utilization usually tallies fairly well with the increase in CO2 emission. The present study attempts at predicting the emissions of CO2 from coal fired power plants from 2005 until 2020

Influnce Of Carbon Monoxide On The Rate Of Depletion Of NOx In The Ozonation Of the Humid Exhaust Gases.

Reactions involved in the ozonation of NOx present in exhaust gases are discussed. Associated reactions of Carbon monoxide, which is usually present in the exhaust gases, are also presented with particular reference to the case when moisture is present

The Importance Of Rate And Time Dependence On Conversion Of NOx In The Cleaning Of NOx In Exhaust Gases Using Ozone.

The reactions involved in the ozonation of NOx present in the exhaust gases are discussed. The equations of reaction rate te fonnulated and the kinetic model anatysis is presented to describe the reaction rate of removal NOx from simulated exhaust gases

Isolation and Purification of Jacalin from Artocarpus Heterophyllus Lam

This paper presents investigation results of saturation conditions needed for purification of jacalin lectin from the extract seeds of Artocarpus heterophyllus by ammonium precipitation and affinity chromatography on Galactose-Affi gel Hz. Three different aspects of parameters encompassing the percentage of saturation of ammonium sulfate precipitation, the presence of ammonium sulfate on Lowry method and the suitable galactose concentration for optimum elution of the protein from Galactose-Affi gel Hz were investigated. With three different sets of fractional saturation of jacalin purification using ammonium sulfate precipitation, the maximum yield of 0.463 g/g was achieved at 0-90% saturation range in the absence of dialysis. Maximum yield of 0.425 g/g was obtained at 30-60% and 0-90% saturation range in the presence of dialysis. The result from this work also indicates that excessive quantity of NH4SO4 interferes with Lowry method for protein determination substantially. The 0-90% saturation range was found to be more potentially appropriate for large scale application than 30-60% saturation, since the former involves only 1 step NH4SO4 addition. From the affinity chromatography, elution of 0.2 M galactose (in 0.15 M NaCl) from Galactose-Affi gel Hz produced the maximum peak profile and jacalin concentration. A reduction or increase in galactose concentration of more than 0.2 M did not increase concentration of purified jacalin purified using this method

Fractal Rate of Adsorption and Surface Diffusivity of Carbon Dioxide across Mesoporous Adsorbents

The disordered nature of pore structures in adsorbents suggests the existence of a fractal structure formed by the pores. In this study, fractal theory has been employed to construct a rate and surface diffusivity model for these mesoporous adsorbents. The fractal dimensions for the adsorbent pore were obtained via the Dubinin–Astakhov equation and the Jaroniec equation. The model indicates the existence of three simultaneous gas-flow mechanisms. When the Reynolds number is less than 30, laminar flow is dominant; when the Reynolds number is greater than 1800, turbulent flow is dominant; and when the Reynolds number is in the range 30–1800, a transient region co-exists. Contact experiments employing CO 2 gas with mesoporous hydrotalcite adsorbents were conducted to validate the model. The calculated adsorption of CO 2 from convective models was significantly higher in the turbulent regime. The adsorption rate increased with increasing values of ΔT (T sat – T). The surface diffusivity also increased as ΔT increased, regardless of the flow regime

Gas adsorption and Surface Diffusion on 5Å Microporous Adsorbent in Transition and Turbulent Flow Region

The flow of O2, H2 and CO2 was in transition regime at relatively lower ΔT and then became turbulent at relatively higher ΔT when passed through the 5Å microporous zeolite adsorbent. Adsorption and surface diffusivity of all the gases that are being studied in these regimes increased with increase in ΔT. For the temperature difference from 5 to 115 K, the range of adsorption of O2 was between 6.319?10-12 and 5.762?10-11 kg/s. The adsorption of H2 was between 4.4?10-13 and 3.88?10-12 kg/s for the temperature difference ranging from 1 to 20 K. The adsorption of CO2 was between 5.3?10-12 and 4.9?10-11 kg/s for the temperature difference ranging from 5 to 100 K. At pressure of 1 bar, CO2 adsorption was the highest at all ΔT, followed by O2 and H2. The surface diffusivity increases with increase in ΔT. At a particular ΔT, the diffusivity increases asymptotically regardless of the flow regions

Strategic planning on carbon capture from coal fired plants in Malaysia and Indonesia: A review

Malaysia and Indonesia benefit in various ways by participating in CDM and from investments in the GHG emission reduction projects, inter alia, technology transfer such as carbon capture (CC) technology for the existing and future coal fired power plants. Among the fossil fuel resources for energy generation, coal is offering an attractive solution to the increasing fuel cost. The consumption of coal in Malaysia and Indonesia is growing at the fastest rate of 9.7% and 4.7%, respectively, per year since 2002. The total coal consumption for electricity generation in Malaysia is projected to increase from 12.4 million tons in 2005 to 36 million tons in 2020. In Indonesia, the coal consumption for the same cause is projected to increase from 29.4 million tons in 2005 to 75 million tons in 2020. CO2 emission from coal fired power plants are forecasted to grow at 4.1% per year, reaching 98 million tons and 171 million tons in Malaysia and Indonesia, respectively.Malaysia Indonesia Coal fired plant