Thermodynamics of solvent-driven water extraction from hypersaline brines using dimethyl ether

In this study the changes in the quality of groundwater are described on the basis of material collected at some groundwater extraction plants situated mainly in urban areas. The causes of the marked increase in the content of dissolved solids are evaluated from the 1960s onwards.

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Efficient Production of Light Olefin Based on Methanol Dehydration: Simulation and Design Improvement

Combinatorial Chemistry & High Throughput Screening ◽

10.2174/1386207323666200720104614 ◽

2020 ◽

Vol 23 ◽

Author(s):

S. Majid Abdoli ◽

Mahsa Kianinia

Keyword(s):

Dimethyl Ether ◽

Flow Reactor ◽

New Technology ◽

Plug Flow ◽

Light Olefins ◽

Efficient Production ◽

Actual Process ◽

Light Olefin ◽

Aspen Hysys ◽

Improved Design

Background: Ethylene, propylene, and butylene as light olefins are the most important intermediates in the petrochemical industry worldwide. Methanol to olefins (MTO) process is a new technology based on catalytic cracking to produce ethylene and propylene from methanol. Aims and Objective: This study aims to simulate the process of producing ethylene from methanol by using Aspen HYSYS software from the initial design to the improved design. Methods: Ethylene is produced in a two-step reaction. In an equilibrium reactor, the methanol is converted to dimethyl ether by an equilibrium reaction. The conversion of the produced dimethyl ether to ethylene is done in a conversion reactor. Changes have been made to improve the conditions and get closer to the actual process design done in the industry. The plug flow reactor has been replaced by the equilibrium reactor, and the distillation column was employed to separate the dimethyl ether produced from the reactor. Result and Conclusion: The effect of the various parameters on the ethylene production was investigated. Eventually, ethylene is

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Application of Tea Extract in Food Industry

Current Nutrition & Food Science ◽

10.2174/1573401316666191218120443 ◽

2020 ◽

Vol 16 (7) ◽

pp. 998-1004

Author(s):

Aziz H. Rad ◽

Raana B. Fathipour ◽

Fariba K. Bidgoli ◽

Aslan Azizi

Keyword(s):

Food Industry ◽

Health Benefits ◽

Epigallocatechin Gallate ◽

Water Extraction ◽

Ultrasound Assisted Extraction ◽

Epicatechin Gallate ◽

Microwave Assisted ◽

Assisted Extraction ◽

Main Components ◽

Tea Extract

Background and Objectives: Tea is considered one of the most consumed drinks around the world and the health benefits of it have recently attracted the attention of different researchers. It has also been proven beneficial in preventing the danger of some diseases like cancer and cardiovascular problems. Further, lipid oxidation is one of the major problems in food products. Considering the above-mentioned issues, the present review focused on various techniques used to extract polyphenols from different kinds of tea, as well as their use in the food industry. Results and Conclusion: Based on our findings in this review, the main components of tea are polyphenols that have health benefits and include catechins, epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, gallic acid, flavonoids, flavonols, and theophlavins. From these components, catechin is regarded as the most beneficial component. Many techniques have been discovered and reformed to extract tea compounds such as solvent-based extraction, microwave-assisted water extraction, and ultrasound-assisted extraction techniques. Overall, the microwave-assisted water extraction method is a useful method for extracting tea polyphenols, which may be used in the meat, oil, and dairy industries.

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