Producing High CO2 Gas Content Reservoirs in Pertamina Indonesia Using Multi Stage Cryogenic Process

2010 ◽  
Author(s):  
I. Putu Suarsana
Keyword(s):  
Gas Content ◽  
Co2 Gas ◽  
High Co2 ◽  
Multi Stage ◽  
Cryogenic Process

Growth of Microalgae in High CO2 Gas and Effects of SOX and NOX

1991 ◽  
Vol 28-29 (1) ◽  
pp. 877-886 ◽  
Author(s):  
Masaaki Negoro ◽  
Norio Shioji ◽  
Kazohisa Miyamoto ◽  
Yoshiharu Micira
Keyword(s):  
Co2 Gas ◽  
High Co2

scholarly journals Design of an Automatic Detector for Gas Desorption of Coal Samples

2020 ◽  
Vol 19 (5) ◽  
pp. 355-361
Author(s):  
Tao Li
Keyword(s):  
Ambient Pressure ◽  
Digital Circuit ◽  
Gas Content ◽  
Software Systems ◽  
Water Displacement ◽  
Gas Desorption ◽  
Multi Stage ◽  
Digital Circuit Design ◽  
Common Technique ◽  
Gas Disasters

Gas content measurement is a common technique in the prevention of coalmine gas disasters. During the measurement, the gas desorption amount of field coal samples needs to be obtained by an instrument working under the principle of gas collection by water displacement (GCWD). The instrument is poorly automated, and susceptible to the influence of subjective factors. To overcome these defects, this paper designs an automatic detector of gas desorption, aiming to realize automated detection. Firstly, the authors analyzed the gas desorption detection process, and clarified the contents and features of the information to be collected. On this basis, the hardware and software systems of the multi-data automatic detector were developed based on digital circuit design and multi-sensor detection. To further improve the measuring accuracy of gas desorption, the multi-range multi-stage mode was introduced to the automatic detector. Application results show that the proposed detector can automatedly collect and store gas desorption amount, ambient pressure, and temperature, greatly improve the degree of automation, and minimize the influence of subjective factors. The popularization of this detector will make gas desorption measurement more efficient and effective, laying a solid basis for the prevention of coalmine gas disasters.

scholarly journals Liquid sulfur dioxide production method based on sulfur and oxygen. R&D of economically feasible method

2021 ◽  
Vol 83 (2) ◽  
pp. 217-223
Author(s):  
M. A. Zelenova-Gyulalieva ◽  
V. V. Igin ◽  
K. V. Aksenchik
Keyword(s):  
Sulfur Dioxide ◽  
Operation Mode ◽  
Production Method ◽  
Raw Material ◽  
Design Parameters ◽  
Process Data ◽  
Process Scheme ◽  
Liquid Sulfur ◽  
Multi Stage ◽  
Cryogenic Process

The article shows the relevance of the industrial production of liquid sulfur dioxide, as well as the fields of its application. Herewith there is provided a brief description of the known methods for the production of liquid sulfur dioxide: the use of roast gas; sulfur-oleum method; multi-stage condensation; low temperature cryogenic process; oxidation of sulfur with oxygen under its stoichiometric deficiency. In the course of the analysis, the main shortcomings of the considered methods were identified, which made it possible to develop an innovative version of the process scheme. Based on the data obtained, JSC “NIUIF” has developed and patented a method for producing liquid sulfur dioxide, the main raw material of which is sulfur and oxygen under its stoichiometric deficiency. The principal difference of the proposed industrial scheme is the use of technical oxygen instead of air blast and the use of a sulfur furnace and a sulfur vapor condenser combined in one housing in the apparatus scheme. The proposed solution significantly reduces energy consumption and eliminates the possibility of liquid sulfur crystallizing inside the equipment. Therefore, this scheme can be considered more reliable and reasonable in comparison with the existing ones. Also, in the process scheme of the developed unit, the production of 1 ton of liquid sulfur dioxide consumes significantly less energy than in the existing technologies. To determine the design parameters of the equipment and master the processes, the article describes a lab unit for producing liquid sulfur dioxide, developed and already installed at JSC "NIUIF". At the moment, experiments are carried out at the facility for the purpose of adjusting the operation mode and collecting the physical and chemical process data.

Injectivity and Well Deliverability Test and Analysis in an Offshore Complex High CO2 Gas Carbonate Asset

2018 ◽  
Author(s):  
Rahim Masoudi ◽  
Muhammad Afiq Abd. Wahab ◽  
Eghbal Motaei ◽  
Abdolrahim Ataei
Keyword(s):  
Co2 Gas ◽  
High Co2

Blood flow and relative tissue PO2 of brain and muscle: effect of various gas mixtures

1976 ◽  
Vol 230 (3) ◽  
pp. 839-844 ◽  
Author(s):  
HR Weiss ◽  
JA Cohen ◽  
LA McPherson
Keyword(s):  
Biceps Brachii ◽  
Brain Perfusion ◽  
Tissue Perfusion ◽  
Gas Mixtures ◽  
Cerebral White Matter ◽  
Experimental Conditions ◽  
Co2 Gas ◽  
High Co2 ◽  
Tissue Po2 ◽  
The Brain

The effects of inspiring low O2 or high CO2, or low-O2-high-CO2 gas mixtures on tissue perfusion and tissue Po2 of brain and muscle were studied in 76 anesthetized rats. Under control conditions, relative tissue Po2 of cerebral white matter measured polarographically averaged 16.4 mmHg and 18.7 mmHg in the biceps brachii. With low-O2 gas mixtures, tissue Po2 declined in both brain and muscle, but more in muscle. Tissue Po2 increased under high-CO2 conditions, with the brain increasing to a greater extent. Control cerebral cortex tissue perfusion averaged 23.5 ml/min per 100 g and muscle was 18.3 ml/min per 100 g measured by H2 clearance. Brain perfusion increased under all experimental conditions. Muscle perfusion did not change with low O2 alone, but increased with low-O2-high-CO2 or high-CO2 gas mixtures. Brain perfusion increased under all conditions significantly more than muscle. The brain appeared better protected compared to skeletal muscle in terms of tissue Po2 and perfusion under the stress of hypoxia and hypoxic-hypercapnia. The effects of hypercapnia are also greater on the brain.

scholarly journals Turbomachinery Project Execution for High CO2 Gas Field: Challenges and Obstacles

2016 ◽  
Vol 6 (1) ◽  
pp. 52-56
Author(s):  
Harris Abd. Rahman Sabri ◽  
Abd. Rahman Abdul Rahim ◽  
Wong Kuan Yew ◽  
Syuhaida Ismail
Keyword(s):  
Gas Field ◽  
Co2 Gas ◽  
High Co2

scholarly journals Dual-channel digital control of energy consumption and air supply in microclimate systems of livestock premises

2021 ◽  
Vol 937 (3) ◽  
pp. 032002
Author(s):  
Yury Ivanov ◽  
Nicolai Novikov
Keyword(s):  
Problem Solving ◽  
Block Diagram ◽  
Gas Content ◽  
Control Vector ◽  
Technical Standards ◽  
Co2 Gas ◽  
Dual Channel ◽  
Air Supply ◽  
Phase Coordinates ◽  
Control Search

Abstract The problem of livestock premises air environment parameters ensuring in terms of temperature, humidity and CO2 gas content, established by zoo technical standards, is considered. The problem is formulated as a problem with non-linearity object and consists in its phase (temperature, humidity and CO2 gas content) coordinates stabilizing by the premises heating capacity and its air exchange intensity controlling. A mathematical model of control object’s dynamics parameters based on material flows and energy balance equations is developed. A cyclic algorithm for this problem solving has been developed, it consists of two successive stages: the control search this problem solving, and the found control establishment until any of the coordinates’ phase go beyond the established limits due to disturbances.The search for the control vector consists in periodic relay switching of its coordinates from specified maximum to minimum values so that the phase coordinates remain in the region of permissible variation. It is shown that the control vector corresponding coordinates as their average values for the switching cycle are defined. A block diagram of the control system implementing the developed algorithm is presented. The calculation data are given for a pigsty for 1300 animals.

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