At present, obtaining dimethyl ether from syngas in one step is an actual issue, and the effect of various factors on the process of direct synthesis of dimethyl ether from syngas in one step was studied in Cu2O·ZnO·ZrO2/YuKTs catalyst. As a result of studies conducted on the effect of various factors on the yield of target products in the process of obtaining dimethyl ether from synthesis gas, it was found that the increase of pressure, temperature, mole ratio of hydrogen to hot gas, and the mole ratio of hydrogen:hot gas leads to an increase in conversion of hot gas. An increase in the volume velocity reduces the conversion of the is gas, because the reaction between the reactants in the gas phase and the methanol catalyst surface does not have time to occur due to the low contact time. It has been proven that the increase in the ratio of gas to hydrogen moles leads to an increase in the yield of dimethyl ether and the conversion of gas. As a result of the research, the following optimal conditions for obtaining dimethyl ether from hydrogen gas in one step were determined: R=1 MPa, T=300℃, hydrogen:gas gas=2, volumetric speed 1000 hour-1. In this case, the conversion of exhaust gas does not decrease for 220 hours. At the same time, the physicochemical and textural characteristics of the Cu2O·ZnO·ZrO2/YuKTs catalyst were studied.
28.05.2024 Volume 3 Issue 5 View more Download
The purpose of this work is to study the degree and structure of contamination of spent zeolites and their impact on adsorption-desorption characteristics in natural gas desulfurization processes, to determine the number and structure of zeolite transport pores and their role in the adsorption process, to develop an optimal method for the recovery of zeolite waste in order to reuse in desulfurization processes
27.05.2024 Volume 3 Issue 5 View more Download
This article discusses the problems of planning the release of a new assortment at sewing enterprises. A structural and logical model of the production planning process is presented. Recommendations for the correct selection of equipment depending on the type of planned assortment have been formed
24.05.2024 Volume 3 Issue 5 View more Download
This article presents the sequence and requirements of inspection (diagnostics) of highways during operation and the sequence and requirements of drawing up a report of defects based on the results of the inspection.
24.05.2024 Volume 3 Issue 5 View more Download
A combination of structural and personal factors accelerated the remote work trend. They include COVID-19 pandemics, advancement of digital technology, transportation, greater flexibility and autonomy/freedom from coercive structures of the workplace desired by workers and others. Digital nomadism emerged as a way of work and a type of lifestyle mobility, giving rise to a class of location-independent workers working outside the country of their employer. This conceptual article incorporates classifications and the profile of digital nomads, their motivations and challenges. It proceeds with benefits and obstacles that host countries face while accommodating digital nomads and that employers face while hiring them or providing opportunities for employees to work as digital nomads. Lastly, the discussion part will include the measures to overcome these obstacles and implications for future research and policy.
23.05.2024 Volume 3 Issue 5 View more Download
The article examines the problems of women's employment, analyzes the factors, proposes a number of measures of social mechanisms. Ways to increase the employment of rural women were also considered, and recommendations were made to improve the system of women's employment.
22.05.2024 Volume 3 Issue 5 View more Download
Rational organization of the country's economy is one of the important directions of economic policy. Effective use of the natural, economic and labor potential of the regions is one of the main conditions for achieving economic independence and ensuring economic growth, improving the living standards of the population of our country. This article provides information about the prospects for the development of production in the industry
22.05.2024 Volume 3 Issue 5 View more Download
Poverty is a complex and pervasive issue in economics that affects millions of individuals and families around the world. It is characterized by a lack of access to basic necessities such as food, shelter, and healthcare, as well as limited opportunities for education and employment. Poverty can have devastating effects on people's physical and mental well-being, leading to malnutrition, illness, and despair.
22.05.2024 Volume 3 Issue 5 View more Download
SCIENCE & INNOVATION