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Particle Separators and Dust Collection
Published in D. Jeff Burton, Hemeon’s Plant & Process Ventilation, 2018
The best of the glass cloth filter bags are still relatively fragile objects and successful application demands utmost care in handling during installation and in the design of mechanisms for cleaning them at the end of the filtration cycle. Realization of this fact in various bag cleaning arrangements has contributed in a major degree to the success of high temperature filtration installations.
Development of an effective solid base catalyst from potassium based chicken bone (K-CBs) composite for biodiesel production from a mixture of non-edible feedstocks
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2021
Mahmood M. Hassan, Abdelrahamn B. Fadhil
The fat was then transferred to a separating funnel and left overnight for settlement. Subsequently, the fat was mixed with freshly activated Na2SO4 to eliminate the residual moisture. The fat yield was calculated on weight bases. The WCO was mixed with freshly activated Na2SO4 and left overnight, followed by filtration by a cloth filter. Properties of the CF, WCO, and their equivalent blend, such as the acid index, density at 15.6°C, kinematic viscosity at 40°C, saponification value, pour point, and the flashpoint was specified following the ASTM standard procedures.Hanus method was followed for determining the iodine value. This method cane utilized as an indication to the unsaturated fatty acid content in the lipid. The calculated Cetane index and higher heating value were determined following equations proposed by Krisnangkura (1986) and Demirbas (2008), respectively. Properties of CF, WCO, and their equivalent blend are given in Table 1.
A study on improving tire pyrolysis oil quality by blending it with biodiesels derived from edible oils
Published in International Journal of Ambient Energy, 2020
Jyothi Yarlagadda, Akash Ravuru, Pavan Voduri, I. S. H. Chaitanya, P. Murali Manohar
In the present work, eight edible oils have been considered and transesterified to extract the respective biodiesels. The process of transesterification is shown in Figure 2. Pre-treatment of the feedstock, which involves getting rid of the solid impurities and any moisture content present, is done before the transesterification. Transesterification reaction could get negatively impacted due to the presence of these impurities and so they have to be eliminated. The solid particles are eliminated in the primary filtration using a cloth filter, which is then followed by the secondary filtration done by employing a filter paper. Whether primary or secondary, filtration is done after heating the feedstock to nearly 60°C which reduces its viscosity and helps in completing the process in a shorter duration. Any water-soluble impurities involved can be eliminated by water washing. The final stage of the pre-treatment process is to heat the feedstock to 105°C which removes the water content completely. The free fatty acid (FFA) value of all the biodiesels lies between 0.1 and 0.3 gKOH/kg of feedstock. Therefore, single-stage base transesterification is carried out. The feedstock is heated to 60°C, to which 300 ml of methanol (in 1:6 ratio) and 10 grams of KOH (1%) are added and stirred at a speed of 700 rpm for 120 min. The resultant products are transferred to a gravity separator and allowed to settle for 8 h after which glycerin is separated from the biodiesel. The obtained biodiesel is then washed with hot water (above 60`C) to get rid of the dissolved excess KOH and methanol. Finally, the biodiesel is reheated to 105°C to ensure zero-water content. The same procedure is adopted for all the oils. These biodiesels are prepared at Fuel Testing laboratory in the Department of Mechanical engineering of VFSTR University.
Producing and properties of zinc dust flames
Published in Combustion Science and Technology, 2018
N. I. Poletaev, M. Y. Khlebnikova, K. Y. Khanchych
In the system for capturing the disperse combustion products the combination of inertia (cyclone collector 7) and filtration (cloth filter 8) dust-collectors have been used. During the sampling of ultradispersed powders the fine fraction is collected by the filter of fine decontamination. The cyclone collector allows one to extract from the main flow the large-sized powder formation (dp >1 μm).