Chemical engineering

Introduction Ultrasound is acoustic energy with a frequency at about 20kHz which is above the capability of human hearing. It is more commonly used in the medical field than food industry. In the medical field, the most significant usage of ultrasound is in sonographic scanners. As these scanners work at 2-18MHz, it produces smaller wavelength which is able to make sonogram of smaller details. As such, ultrasound sound based imaging technique is used to visualize body structures and tissues (Carovac

available large-scale purification methods are verified. The pros and cons of each available technology are discussed to utilize it in small biogas plant. The available purification technologies are a) Water and polyethylene glycol scrubbing b) Chemical absorption c) Pressure swing adsorption d) Membrane e) Cryogenic separation Water and polyethylene glycol scrubbing Water scrubbing is used to remove CO2 and H2S from biogas since these gases are more soluble in water than methane. The absorption

evaporated, since they are solids. Showing once again that evaporation had to occur after filtration, which occurred third, in order to be able to occur at all. As stated earlier, when mixed together, the components of a mixture retain their physical and chemical properties. Therefore, the method of evaporation was successful due to water retaining its property of volatility. Meaning that the water retained its ability to be volatile, while the sugar was still in no way volatile. Therefore, the method of

FABRICATION AND TESTING OF ICE PLANT TEST RIG ABSTRACT Refrigeration may be defined as the process of achieving and maintaining a temperature below that of the surrounding, the aim being to freeze to ice, cool some product, or space to the required temperature. The basis of modern refrigeration is the ability of liquids to absorb enormous quantities of heat as they boil and evaporate. One of the most important applications of refrigeration & air conditioning is to produce ice for commercial applications

Due to increasing competition in the field of medical testing it has become prudent for Laboratorio De Analisis Argentina (LAA) to evaluate its process and identify strengths and weaknesses to improve the operations of their laboratories. An in-depth investigation into day-to-day, step-by-step breakdown of activities has uncovered where, and how LAA can achieve efficient operations. From the original collection of samples to the final step of communicating the test results to the patients, LAA

(spirits, wine and vodka) has been a high-end consumer in terms of energy usage. According to U.S. Dept. of Energy, there are more than 40,000 distillation columns in North America and they consume 40% of the total energy used to operate plants in chemical industries [1]. As a result, researchers have focused their efforts towards developing distillation columns that are more compact, utilize compressors to recirculate latent heat and possess more effective separation technology in order to reduce

Gangue is one of the largest accumulating solid, and is particularly rich in pyrite. Therefore, pyrite recovery from gangue is not only significant for the environmental protection, but also for the development and production of chemicals. The dry separation methods, leading to the decreased waste and cost effectiveness, have received significant attention of many scholars. In this study, the vibration energy was introduced to promote the separation of particles. The interactions and effect of comparison

CO2 is an important greenhouse gas (GHG) and emission of CO2 to the atmosphere needs to be reduced in order to mitigate climate change. It is imperative to device ways of proper CO2 utilization and storage. CO2 can be sequestered geologically as well as there are other ways of CO2 utilization which can be economically viable in places where geological storage is not the most optimal solution. In the present study, the primary focus is on the integration potential of two GHG abatement options, which

Multiscale modeling of a gas separation device based on eect of thermal transpiration in the membrane Vasily Kosyanchuka,b,, Valery Kovaleva,b, Artem Yakunchikova,b aLaboratory of Nanomechanics, Institute of Mechanics, Lomonosov Moscow State University, Michurinskyi aven. 1, 119192, Moscow, Russian Federation bDepartment of Mechanics and Mathematics, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 119991, Moscow, Russian Federation Abstract This article studies a novel approach to improve

Introduction and process description The PFD for the cumene production Unit 800, is given in Figure 1. The reactants are nourished from their particular capacity tanks. After being pumped up to the required weight, the reactants are vaporized, and heated to required temperature in the let go radiator. The shell-and-tube reactor converts the reactants to main and side product as per the following responses. The produced heat is removed by exchanging heat with cooling water in the shell side. The