in this study, bimodal meso-porous silica (uvm-7) synthesized and fabricated amino silane modified supports were characterized by powder x-ray diffraction (xrd), n2 adsorption/desorption, transmission electron microscope (tem), elemental analysis and titration. capacity of co2 capture on modified bimodal pore structure silica at 70°c was calculated using breakthrough curves; and it was found th...

Flue Gas Condensers (FGC) are used to increase the thermal output of biomass boilers. This reduces emissions per unit produced energy but furthermore, fine dust particles will be collected in condenser. These condensers therefore have a double effect on specific particulate matter emissions. In addition mechanisms that cause particle capture such as thermophoresis and diffusiophoresis, other ag...

Since oxy-combustion is a relatively new technology, many problems associated with the behavior of coal in this novel combustion process still need to be solved. In particular, there is a lack of knowledge regarding the behavior of toxic trace elements, and there is a need to determine whether trace element distribution among the by-products and emissions to the environment, is comparable with ...

the flame propagation through a coal dust-air mixture in a spherical vessel was studied by means of a one-dimensional, arrhenius-type kinetics and quasi-steady model. the model includes the evaporation of the volatile matter of dust particles into a known gaseous fuel (methane) and the single-stage reaction of the gas-phase combustion. effect of venting devices as safety idea and the radiation ...

the impacts of dust and sand storms (dss) on people, crops, livestock, infrastructure and health are well documented. data have accumulated on the deleterious effects of dust aerosols when they settle on plants. sand blasting of low growing plants is a common cause of failure in reforestation efforts. burial of plants by moving sands are also a cause of much damage. the physics of moving sand a...

Reducing C02 emissions for addressing climate change concerns is becoming increasingly important as the C02 concentration in the atmosphere has increased rapidly since the industrial revolution. Many mitigation methods, including C02 sequestration and novel C02 utilization, are currently-under investigation. Most of these processes require C02 in a concentrated form. However the C02 from large ...

Abstract Dust can be regarded as environmental medium that indicates the level and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) coming from different pollution sources. In this study, samples including road dust, roof bare soil near an iron steel enterprise (ISE) in Laiwu city North China were collected. To assess environment impact, atmosphere particulates one flue dust a co...

This study aimed to investigate the effects of wet flue gas desulfurization (WFGD) on particulate matter (PM) emissions in coal-fired power plants (CFPPs) using an electrical low-pressure impactor (ELPI). The investigation was conducted five industrial CFPPs various loads China clarify influence factors WFGD PM10 emissions. After WFGD, proportion PM2.5 outlet increases, which showed that system...