scholarly journals THE POSSIBILITY OF USING ZEOLITES FROM VARIOUS MANUFACTURERS FOR THE DRYING OF HYDROCARBON GAS FROM THE ASTRAKHAN GAS PROCESSING PLANT, A BRANCH OF LLC «GAZPROM PROCESSING»

Author(s):  
М. М. Тугельтаев ◽  
О. Н. Каратун ◽  
О. В. Танаянц ◽  
В. В. Шардыко

При транспортировке товарного газа потребителям по магистральным газопроводам предъявляются жесткие требования к его физико-химическим характеристикам и компонентному составу, для обеспечения надежной эксплуатации трубопроводной системы. Одним из основных контролируемых параметров, оказывающих существенное влияние на эксплуатационные характеристики товарного газа, является влагосодержание, которое характеризуется таким показателем, как точка росы по воде. С целью снижения содержания влаги в товарном газе для осушки применяются различные методы, в том числе и методы осушки с использованием адсорбентов, эффективность использования которых подтверждена не одним десятилетием. Самыми эффективными адсорбентами в настоящее время являются цеолиты, которые при их использовании позволяют получать низкие температуры точки росы по воде. Подбор эффективных цеолитов для осушки углеводородных газов с целью достижения как можно более низкой температуры точки росы по воде является актуальной задачей, решение которой позволит улучшить экономику процесса осушки. В статье проанализированы результаты использования двух марок адсорбентов (производства ООО «Ишимбайский специализированный химический завод катализаторов» и ООО «Салаватский катализаторный завод»), которые применялись в процессе осушки углеводородного газа на Астраханском ГПЗ филиале ООО «Газпром переработка» (далее - Астраханский ГПЗ). Сопоставительный анализ работы адсорбентов двух производителей показал возможность их использования в процессе осушки углеводородного газа на Астраханском ГПЗ. В присутствии данных адсорбентов при номинальной и максимальной загрузке технологической установки осушки и отбензинивания газа на Астраханском ГПЗ содержание влаги в газе не превышало 1,0 ppm. Адсорбент производства ООО «Ишимбайский специализированный химический завод катализаторов» показал большую устойчивость работы в процессе осушки, что было обусловлено меньшей динамикой изменения основных технологических показателей. When transporting commercial gas to consumers through main gas pipelines, strict requirements are imposed on its physical and chemical characteristics and component composition, to ensure reliable operation of the pipeline system. One of the main controlled parameters that has a significant impact on the performance characteristics of commercial gas is the moisture content, which is characterized by such an indicator as the dew point on water. In order to reduce the moisture content in the commercial gas, various methods are used for drying, including methods of drying using adsorbents, the effectiveness of which has been confirmed for more than one decade. The most effective adsorbents currently are zeolites, which, when used, allow you to get low dew point temperatures in water. The selection of effective zeolites for the drying of hydrocarbon gases in order to achieve the lowest possible dew point temperature in water is an urgent task, the solution of which will improve the economy of the drying process.The article analyzes the results of the use of two brands of adsorbents (produced by LLC “Ishimbay Specialized Chemical Plant of Catalysts” and LLC “Salavat Catalyst Plant”), which were used in the process of drying hydrocarbon gas at the Astrakhan Gas Processing Plant branch of LLC “Gazprom Pererabotka” (hereinafter - the Astrakhan Gas Processing Plant).A comparative analysis of the adsorbents of the two manufacturers showed the possibility of their use in the process of drying hydrocarbon gas at the Astrakhan Gas Processing Plant. In the presence of these adsorbents at the nominal and maximum load of the gas drying and topping process unit at the Astrakhan Gas Processing Plant, the moisture content in the gas did not exceed 1.0 ppm. The adsorbent produced by LLC “Ishimbay Specialized Chemical Plant of Catalysts” showed greater stability in the drying process, which was due to the lower dynamics of changes in the main technological indicators.

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8036
Author(s):  
Ruud Weijermars ◽  
Miao Jin ◽  
Nur Iman Khamidy

This study provides a workflow and preliminary estimations of the estimated ultimate recovery (EUR) volumes for natural gas and condensate liquids in the Tuwaiq Mountain Formation, the principal target in the Jafurah Field development project in Saudi Arabia. The strategic need for the field development is reviewed and the field characteristics are outlined based on public data sources complemented with data from analogous reservoirs. The target zone in the Jafurah Basin is a carbonaceous shale, being developed with up to 10,000-ft-long multistage-fractured laterals with 30 ft perforation cluster spacing and an assumed typical 1250 ft well spacing. The field will come on stream in 2024, when the gas-gathering pipeline system, natural gas processing plant, and underground gas storage facilities will all be in place. The range of uncertainties in the key reservoir parameters is taken into account to estimate preliminary EUR volumes (P90, P50, and P10) for both gas and condensates. Based on the present and prior EUR estimations, it can be concluded that the Jafurah Basin comprises one of the largest unconventional field development projects outside of North America.


Author(s):  
R. P. Lang ◽  
B. B. McCullough

In 1984 the Northwest Pipeline Corporation purchased and installed equipment for their Ignacio, Colorado, gas processing plant to extract ethane and heavier hydrocarbons from the gas arriving at their pipeline system from various natural gas producing sources. In addition to the basic turbo-expander required to achieve the very low gas temperatures in the process, the equipment includes gas turbine driven compressors, heat recovery steam generators, and a steam turbine driven electric power generator. This paper reviews the process itself, the various mechanical and electrical equipment involved, and some of the control system utilized to tie it all together.


Author(s):  
D Rismayasari ◽  
Y W Budhi ◽  
J Rizkiana ◽  
T Cahyono ◽  
Khairunnisa

2021 ◽  
Vol 30 (5) ◽  
pp. 58-65
Author(s):  
A. Yu. Shebeko ◽  
Yu. N. Shebeko ◽  
A. V. Zuban

Introduction. GOST R 12.3.047-2012 standard offers a methodology for determination of required fire resistance limits of engineering structures. This methodology is based on a comparison of values of the fire resistance limit and the equivalent fire duration. However, in practice incidents occur when, in absence of regulatory fire resistance requirements, a facility owner, who has relaxed the fire resistance requirements prescribed by GOST R 12.3.047–2012, is ready to accept its potential loss in fire for economic reasons. In this case, one can apply the probability of safe evacuation and rescue to compare distributions of fire resistance limits, on the one hand, and evacuation and rescue time, on the other hand.A methodology for the identification of required fire resistance limits. The probabilistic method for the identification of required fire resistance limits, published in work [1], was tested in this study. This method differs from the one specified in GOST R 12.3.047-2012. The method is based on a comparison of distributions of such random values, as the estimated time of evacuation or rescue in case of fire at a production facility and fire resistance limits for engineering structures.Calculations of required fire resistance limits. This article presents a case of application of the proposed method to the rescue of people using the results of full-scale experiments, involving a real pipe rack at a gas processing plant [2].Conclusions. The required fire resistance limits for pipe rack structures of a gas processing plant were identified. The calculations took account of the time needed to evacuate and rescue the personnel, as well as the pre-set reliability of structures, given that the personnel evacuation and rescue time in case of fire is identified in an experiment.


2020 ◽  
pp. 41-51
Author(s):  
Pavel Kurochkin

Pavel Kurochkin, manager of labor protection, industrial safety and ecology at NIPIGAS company, talks about the realization of the NIPIGAS project for the construction of the Amur gas processing plant for LLC Gazprom pererabotka Blagoveshchensk and about the design and implementation of preparatory works for the construction of the Amur gas-chemical plant for LLC SIBUR. New approaches to labor protection and safety, which are used at NIPIGAZ construction sites, make it possible to control the safety of work at heights and in inaccessible places and to monitor construction and installation works using video surveillance technologies and video analytics.


Author(s):  
Saeid Mokhatab ◽  
William A. Poe ◽  
John Y. Mak

2013 ◽  
Vol 27 ◽  
pp. 21-26 ◽  
Author(s):  
Md Emdadul Haque

Mono Ethylene Glycol (MEG) is used primarily at low-temperature processing plant for extracting natural gas liquids. Typically a physical process plant comprises with gas dehydration system which allows for physical separation of water saturated gas by simple dew point depression and water condensation brought about by chilling from cross exchange with propane refrigerant. The resultant wet gas is prevented from freezing by injection of liquid desiccants to inhibit hydrate formation. The resulting dehydrated gas stream will have a dew point preciously equal to the saturated water volume of the gas at its coolest temperature. Mono Ethylene Glycol has been chosen as hydrate inhibitor because of its low volatility, low toxicity, low flammability, good thermodynamic behavior, and simple proven technology requirement and availability. But it has two common characteristic problems in regeneration plant that is fouling of equipment by iron carbonate, Ca+2/Mg+2 salt deposits and cross contamination of MEG and condensate contamination. MEG in condensate causes condensate specification problems, fouling of condensate stabilization equipment and contamination of wastewater streams. Condensate in MEG causes stripping effect due to condensate vaporization, lower operating temperature, higher MEG purities, and contamination of wastewater streams from MEG Regeneration system and burping of column due to condensate buildup. Another common problem is glycol losses due to carryover with dehydrated gas and which finally accumulates in pipelines and causes corrosion. Other reasons of glycol losses are higher column temperature, foaming, leaks at pump or pipe fittings, operated with excessive gas flow rates and rapid changes in gas flow rates. Column Flooding occurred if feed glycol circulation rate exceeded design limit and it does not allow proper separation of glycol and water separator and much glycol losses through vent line. This paper presents an experimental study of glycol losses. Effort has been made to investigate the causes and the study suggests some mitigation plans. Current study suggests the efficiency of the dehydration process depends on a large extent on the cleanliness of the glycol and the regular monitoring of glycol parameters such as glycol concentration, hydrocarbon content, salt content, solids content, pH stabilization, iron content, foaming tendency etc. Losses due to vaporization from reboiler can be minimized by adjusting operating parameters. By developing monitoring procedure and periodic maintenance about 90% operating problems of Glycol Regeneration Plant can be reduced. DOI: http://dx.doi.org/10.3329/jce.v27i1.15853 Journal of Chemical Engineering, IEB Vol. ChE. 27, No. 1, June 2012: 21-26


Author(s):  
Saeid Mokhatab ◽  
William A. Poe ◽  
John Y. Mak

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