Influence of external factors on the process of hydrates development in laboratory conditions
Journal Title: Технологический аудит и резервы производства - Year 2018, Vol 4, Issue 1
Abstract
<p class="20CxSpFirst"><em>The object of research is the influence of various factors on the process of synthesis of propane hydrate in laboratory conditions. It is known that a synthesized gas hydrate can contain a significant amount of ice, which reduces its gas content. The quality of the hydrate is affected by: gas pressure, water temperature, time of the experiment and the concentration of surfactants.</em></p><p class="20CxSpMiddle"><em>To study the complex effect of these factors on the quality of the hydrate obtained, an experimental setup is developed. After synthesis of the gas hydrate, its gas content is determined using a specially designed stand. In the course of the research, various measuring instruments were used: manometers, thermometers, measuring utensils, electronic scales, etc., which made it possible to obtain reliable information on the thermophysical characteristics of the synthesis and dissociation of gas hydrate.</em></p><p class="20CxSpMiddle"><em>As a result of the multivariate experiment, an array of data for analysis by mathematical statistics methods is obtained. Correlation coefficients are determined and found that the dominant factors are the gas pressure and concentration of surfactants. The water temperature should be within the operating range of 1–5 °C. The formation time of the hydrate in the bubbling regime within 0.5–5 h also does not significantly affect the quality of the obtained hydrate. For all factors, regression dependencies and graphs are constructed. It is established that for standard regression dependencies (linear, exponential, logarithmic and polynomial), the coefficients of multiple correlation are in the range 0.19–0.46. This means that the standard regression relationships do not allow to take into account all the features of the obtained results. Therefore, the selection of the optimal dependence is carried out by the method of variation of the coefficients and types of functional dependencies and an approximate formula is obtained for determining the predicted gas content of the hydrate.</em></p><p class="20CxSpLast"><em>The research results show that due to the complex consideration of various factors, it is possible to determine the range of optimum values of pressure, temperature and concentration of surfactants, which makes it possible to quickly produce a high-quality hydrate.</em></p>
Authors and Affiliations
Nashwan Abdullah, Bohdan Kutnyi
Keywords
Related Articles
- EP ID EP527455
- DOI 10.15587/2312-8372.2018.141302
- Views 120
- Downloads 0
Development of medical diagnostic decision support systems and their economic efficiency
<p><em>The object of research is the diagnostic decision support system (DSS). One of the most problematic areas in medical diagnostic systems is the formation of a knowledge base based on expert rules, which provides a...
Research into energy efficiency of the underfloor heating system, assembled dry
<p><em>The object of research is the thermal parameters of operation of a fragment of the floor heating system assembled dry, under conditions of actual application set in the lab premises. </em></p><p><em>One of the mos...
Research of the peculiarities of plasma-electrolytic treatment of AK12M2MgN piston alloy with formation of ceramic-like coatings
<p class="20CxSpFirst">The object of research is the processes of the piston alloy AK12M2MgH treatment by the method of plasma electrolytic oxidation (PEO) with the formation of ceramic underlying coatings. One of the mo...
The solvent sublation of bromocresol green from waters solutions
<p><em>The object of research is wastewaters contaminated with dyes. The available methods for treating wastewater from dyes are often imperfect, ineffective or absent. This calls for the development and implementation o...
Theoretical analysis of the adaptive system for suppression of the interference concentrated on a spectrum
<p><em>The object of research is the process of interference suppression in a passive radiometric receiver, centered over the interference spectrum, with a random or varying frequency. Noise immunity can be increased by...