Evolution of Natural Gas Treatment with Membrane Systems

2010 ◽  
pp. 313-332 ◽  
Author(s):  
Lloyd S. White
Keyword(s):  
Natural Gas ◽  
Membrane Systems ◽  
Gas Treatment

Natural gas treatment by membrane-case study of liquefied natural gas plant of Arzew-Algeria

2021 ◽  
Vol 28 (1) ◽  
pp. 52
Author(s):  
Omar Belhamiti ◽  
Maghnia Hamou Maamar ◽  
Amina Mezouagh ◽  
Belkacem Absar
Keyword(s):  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Gas Treatment

Natural gas treatment by membrane-case study of liquefied natural gas plant of Arzew-Algeria

2021 ◽  
Vol 28 (1) ◽  
pp. 52
Author(s):  
Amina Mezouagh ◽  
Belkacem Absar ◽  
Maghnia Hamou Maamar ◽  
Omar Belhamiti
Keyword(s):  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Gas Treatment

The Mooring Bay Concept for LNG Loading in Harsh and Ice Conditions

2012 ◽  
Author(s):  
Sven Hoog ◽  
Joachim Berger ◽  
Johannes Myland ◽  
Günther F. Clauss ◽  
Daniel Testa ◽  
...  
Keyword(s):  
Natural Gas ◽  
Model Tests ◽  
The Arctic ◽  
Transfer System ◽  
Research Project ◽  
Joint Research ◽  
Gas Treatment ◽  
Ice Coverage ◽  
Joint Research Project ◽  
Flexible Transfer Lines

The demand for natural gas from offshore fields is continuously increasing. Especially future production from Arctic waters comes into focus in context with global warming effects leading to the development of a dedicated technology. Relevant approaches work with floating turret moored production terminals (FLNG) receiving gas via flexible risers from subsea or onshore fields. These terminals provide on-board gas treatment and liquefaction facilities as well as huge storage capabilities for LNG (Liquefied Natural Gas), LPG (Liquefied Petrol Gases) and condensate. Products are transferred to periodically operating shuttle tankers for onshore supply reducing the need for local onshore processing plants providing increased production flexibility (future movability or adaptation of capacity). Nevertheless, in case of harsh environmental conditions or ice coverage the offshore transfer of cryogenic liquids between the terminal and the tankers becomes a major challenge. In the framework of the joint research project MPLS20 ([1]), an innovative offshore mooring and cargo transfer system has been developed and analyzed. MPLS20 is developed by the project partners Nexans ([2]) and Brugg ([3]), leading manufacturers of vacuum insulated, flexible cryogenic transfer pipes, IMPaC ([4]), an innovative engineering company that has been involved in many projects for the international oil and gas industry for more than 25 years and the Technical University (TU) Berlin, Department of Land- and Sea Transportation Systems (NAOE, [5]), with great expertise in numerical analyses and model tests. The overall system is based on IMPaC’s patented and certified offshore ‘Mooring Bay’ concept allowing mooring of the vessels in tandem configuration and simultaneous handling and operation of up to six flexible transfer pipes in full aerial mode. The concept is outlined to operate with flexible transfer lines with 16-inch inner diameter like the newly designed and certified corrugated pipes from Nexans and Brugg. The mooring concept and its major subsystems have proven their operability by means of extensive numerical analysis, model tests and a professional ship handling simulator resulting in an overall transfer solution suitable to be used especially under Arctic conditions like addressed by the EU joint research project ACCESS (http://access-eu.org/). The paper introduces the new offshore LNG transfer system and focuses especially on its safe and reliable operability in the Arctic — with ice coverage as well as in open water conditions.

scholarly journals The Role of Enhanced Shale Oil & Gas Recovery in the Us & Development & Pricing of Significant Potential Shale Production in Other Countries Such As South America, Canada, & Europe/Asia2018/2019

2019 ◽  
Vol 2 (3) ◽  
Keyword(s):  
Natural Gas ◽  
Oil And Gas ◽  
The United States ◽  
Gas Production ◽  
Domestic Water ◽  
Water Supplies ◽  
Hydro Power ◽  
Gas Treatment ◽  
Environmentally Sound

The Role of Science in Developing Enhanced Oil & Gas Resources, Being Environmentally Sound, & Protecting Water Use • Global transformation with fossil fuel as primary source which have an effect on GDP, export/import changes, and global effects on pricing • History of evolution of oil and gas production in the United States • Global development: European Community, India, China, Brazil, Chile, Argentina and Mexico all have proven reserves • All time high extraction of tight natural gas and oil being environmentally sound and protecting domestic water supplies • Hydraulic fracking below potable water supplies • Drilling Diagrams – Vertical and Horizontal, Proper Casing  Record pace of pipeline construction to supply refineries & terminal ports  Pronounced effect on GDP • Natural gas treatment, delivery, from source to energy deficient countries exported as LNG • Cost subsidies and economic pricing of oil and gas extraction, hydro power, coal, nuclear, wind, and solar. Cost of power by region • There are no “Dry Holes” and more attributes of highly advanced geological technology

Amine-Functionalized Graphene for Natural Gas Sweetening

2014 ◽  
Vol 1064 ◽  
pp. 21-25 ◽  
Author(s):  
Mohammed S. Subrati ◽  
Sunil P. Lonkar ◽  
Ahmed A. Abdala
Keyword(s):  
Natural Gas ◽  
Great Promise ◽  
Functionalized Graphene ◽  
Solid Sorbent ◽  
Acid Gases ◽  
Gas Treatment ◽  
X Ray ◽  
Gas Sweetening ◽  
Amine Functionalized ◽  
Natural Gas Sweetening

Natural gas is often contaminated with acid gases; commonly hydrogen sulfide (H2S) andcarbon dioxide (CO2). In addition to their offensive odor and high toxicity, acid gases can cause serious corrosion problems in a gas plant due to their acidic nature and may reduce the efficiency of gas treatment processes. Therefore, several natural gas sweetening processes have been developed for the removal of acid gases. In present work, we report the employment of amine-functionalized graphene hybrid for adsorption of acid gases. Graphene was selected as a solid sorbent due to its very high specific surface area and ability to undergo various chemical transformations.Considering high affinity of amines towards H2S, an aminated polymer, polyethylenimine (PEI) was used as a functionalizing agent. The resulting hybrids were characterized using Fourier Transform Infrared spectroscopy (FTIR), X-ray Photoelectron Spectroscopy (XPS), elemental analysis, X-ray Diffraction analysis (XRD), and Thermogravimetric Analysis (TGA). These hybrids are envisioned as materials with high H2S sorption capacities and hold great promise in natural gas sweetening applications.

Effect of Alumosilicate Adsorbent Regeneration Conditions on the Dehydration of Methanol Extracted from Natural Gas

2020 ◽  
Vol 24 (8) ◽  
pp. 17-21
Author(s):  
Z.А. Temerdashev ◽  
A.V. Rudenko ◽  
I.A. Kolychev ◽  
A.S. Kostina
Keyword(s):  
Natural Gas ◽  
Silica Gel ◽  
Silica Gels ◽  
Treatment Unit ◽  
Fuel Gas ◽  
Gas Treatment ◽  
Adsorbent Regeneration ◽  
Gas Processing ◽  
Natural Gas Processing ◽  
Processing Plants

This paper focuses on the parameters of the technological regime for the regeneration of aluminosilicate adsorbents on natural gas processing plants adsorption type on the dehydration of methanol from natural gas. The object of this study were the non-hydrocarbon fraction of liquid products of the purification of natural gas from an adsorption unit on silica gel with countercurrent regeneration. Gas treatment plants was optimized using BASF KC-Trockenperlen silica gels and microporous silica gel adsorbents (АСМ). The direct-flow regeneration technology on natural gas processing plants with adsorption purification оn aluminosilicate adsorbents contributes to a more efficient reaction of the conversion of methanol to dimethyl ether and his process reduces the volume of non-hydrocarbon waste fraction. Decreasing methanol concentrations reduces atmospheric emissions and saves fuel gas consumed by a stationary thermal treatment unit.

scholarly journals Problems of uniform distribution of gas flow in gas drying absorbers when preparing gas for transportation

2020 ◽  
Vol 2020 (1) ◽  
pp. 31-37
Author(s):  
Yuriy Aleksandrovich Maksimenko ◽  
Sergei Drachevskii ◽  
Natal'ya Drachevskaya
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Environmental Safety ◽  
Dew Point ◽  
Process Equipment ◽  
Automatic Equipment ◽  
Gas Industry ◽  
Gas Treatment ◽  
High Level ◽  
High Degree

The article highlights the important factors of gas treatment. The dew point of commercial gas is one of the main normalized indicators, since the moisture content in commercial gas has a significant impact on the uptime of automatic equipment, on reducing corrosion of gas pipelines, process equipment and compressor stations during gas transportation. Adsorption drying of natural gas is a widely used method in the Russian gas industry. This method is characterized by the high level of environmental safety. Besides, the advantages of the method include the absence of the liquid phase and corrosive fluids in the commercial gas, low specific adsorbent consumption and the high degree of process automation. The article presents an overview of practical methods of adsorption drying of natural gas when preparing it for transportation. The advantages of adsorption drying over other methods are considered; the constructive disadvantages of absorber types are described; the ways of eliminating them are proposed

H2S and Mercaptane in Gas Production: Practical Operating Experience

2001 ◽  
Author(s):  
Tomislav Juranic ◽  
Ivan Meandzija ◽  
Ivo Steiner
Keyword(s):  
Natural Gas ◽  
Monitoring System ◽  
Operating Cost ◽  
Harmful Effect ◽  
Treatment Plant ◽  
Ambient Air ◽  
Elementary Sulfur ◽  
Continuous Control ◽  
Separation Unit ◽  
Gas Treatment

Abstract INA-Naftaplin has been utilizing the LO-CAT® process in Croatia for protection of ambient air against H2S pollution at its Gas Treatment Plant Molve III already for seven years. This separation unit, incorporated into the gas treatment plant has been erected exclusively for the protection of ambient air against harmful effect of H2S. The unit is treating H2S+CO2, which is being removed from natural gas by an upstream amine process, under conditions of low H2S content and low pressure of gas. Catalytic oxidation is being used to convert H2S to elementary sulfur, and the emission concentration was decreased from 580 ppm to less than 30 ppm. The practice revealed a series of delicate situations: plugging of internals, solution filtering and achievement of required 60 wt% sulfur concentration, disposal of produced sulfur sludge and others. The Institute for Medical Research Zagreb has performed the ambient air quality monitoring, within the scope of its contract for annual base monitoring. H2S imission values were under 5 μg/m3. The continuous control of working area is achieved by twenty-four H2S sensors, and results obtained to this date have always been below allowable limits. The practical experience has revealed that the LO-CAT® desulfurization unit has fulfiled its purpose and existing environmental criteria till 1997, along with significant cost, primarily for power and chemicals. The actual Croatian Directive on TLV of pollutants in the waste gas requires H2S concentration of 3.5 ppmv max. and RSH concentration of 20 mg/m3 max. Now the GTP Molve and Ethane Recovery Plant have emission of H2S and mercaptane above the permissible limit value, which have to be solved until the year 2004. To meet the strict legal requirements, certain upgrading is to be undertaken. This capital investment requires a large financial expenditure of up to 5 million USD, and up to 1 million USD/year for operating cost for both plants. For process improvement a continuous monitoring system has to be solved also. In that respect, measuring of H2S+RSH emission is in accordance to ASTM D-4084-82 and ASTM D-23 85-81 methods. Periodical control by gas tube detector system could contribute to the most reliable and efficient monitoring system of the two most important natural gas plants in Croatia.

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