technological scheme

Aceclofenac drugs are widely used in the global therapeutic practice of inflammatory and painful conditions for the treatment of osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis in various dosage forms. The basics of the technology of domestic industrial batch production of aceclofenac with a capacity of 110 t/year for the production of a number of effective medicines have been developed. A five-stage production process is proposed that will allow the production of a domestic product with a high yield (~ 91%) from commercially available reagents.

Розглядається задача знаходження режимних параметрів роботи газотранспортної системи, яка зводиться до розв’язання системи рівнянь у частинних похідних методом скінченних елементів. На стійкість знаходження розв’язку суттєво впливає крок за часовою координатою. Запропоновано адаптивний алгоритм зменшення впливу величини кроків на стійкість розв’язку. Крім цього, запропоновано алгоритм зменшення часу розв’язування режимних задач способом редагування технологічних схем – моделі структури системи транспортування газу.

Розглянута проблема оптимізації сумісної роботи газосховищ у складі газотранспортної системи України. Поставлені задачі і запропоновано алгоритми їх розв’язування. Отримані попередні оцінки потенціалу оптимізації роботи газосховищ та факторів впливу на величину таких оцінок.

Розглянуто задачу оптимізації сумісної роботи газосховищ в Західному регіоні України в складі газотранспортної системи. Поставлено на реальних даних числові експерименти для отримання попередніх оцінок потенціалу оптимізації та факторів впливу на величину таких оцінок.

The task about optimization of joint action of gas storages in the Western region of Ukraine as a part of the gas transport system is considered. Numerical experiments for receiving the previous estimates of optimization potential and factors of affect on value of such estimates are set with actual data.

Designed and engineered the production of a probiotic preparation based on antibiotic-resistant strains of Lactobacillus acidophilus, which is beneficial to use in conjunction with antibiotic therapy for the treatment of various types of infections to maintain normal intestinal microflora. Provided qualitative characteristics of the raw materials, producer microorganisms, and the final product.

By the mixing in the melt of various polyolefins is being obtained the materials of the necessary specific properties which can not be obtained during the synthesis. Due to the wide range of molecular masses, there is a relative gradation of low pressure polyethylene according to their values.

The article presents experimental studies of the adsorption capacity of zeolite in relation to Cu2 + and Сr3 + ions in a column type apparatus. The comparison of theoretical calculations and the results of experimental studies of the process of compatible adsorption of copper and chromium ions on zeolite in dynamic conditions was presented. Experimental data of dynamics of adsorption of ion of cuprum and chromium zeolite in a column type apparatus were presented. The exhaustion time and breakthrough time for different sorts at different bed depth have been set.

A mathematical model of the gas transmission system is studied in this article.  Models of gas flows in the main technological objects that are involved in the  transportation of gas are represented.  The structure of the system is represented in terms of graph theory.      Adaptive algorithm of the gas transportation system model implementation is constructed and real-world examples of its work are presented in this paper.

The article deals with the development of technological scheme for refining oils extracted in Iraq. Basic characteristics and physico-chemical properties of Iraq oils have been considered. The main stages of oil refining and processing have been described. Material balances of each processing stage have been calculated.

The paper contains the results of experimental study of visbreaking process with the use of organic part of asphalt-resin-paraffin deposits (ARPD) as a raw material component. We studied the influence of ARPD amount as the additive to tar on the output fuel fractions and their qualitative parameters. The proposals on modernization of the industrial visbreaking scheme with blended raw material were made. The analysis of economic performance of the modernized process was carried out.