Automation in Petro-Chemical Industry

Fully-Integrated Multi-Applications Wireless Communication Network for Process Industry

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

With the rapid development of wireless communication technology for process industry, wireless network with simple architecture of wireless gateway and wireless field device has been developed to a fully integrated multi application wireless communication network. After briefly summarizing the characteristics of fully integrated multi application wireless communication network, introduced with emphasis a number of manufacturers to develop wireless communication network devices, system composition and integration with the host system for fully-integrated multi-applications wireless communication network.

Designing for outlet control vavle of purification reactor for PTA slurry

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

In PTA plant,purification reactor is working in critical condition，such as high temperature ,high pressure and saturated hydrogen.The outlet contorl valve of purification reactor for PTA slurry is very important for PTA section.Structure and material of valve must be considered carefully in order to avoid damage when it is in use.This article will illustrate designing and application of this valve,and introduce application experience base on plant operation.

Subsea Production Control System Analysis and Design of Western Australia Gas Field

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

Subsea production system is a major way for deepwater oil and gas field development, and Subsea Production Control System is critical to subsea production and is the bridge between subsea production system and the topside facilities. Based on the Western Australia Gas Field as an example, this paper briefly introduces how to choose the control mode during subsea production system design and the selection principle, and also analyses the relationship between the Subsea Production Control System and the topside facility control system, which played a certain reference to similar deep water development.

Initial analysis on the application of electric tracing in South Yolotan gas gathering station

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

South Yolotan gas reservoir lies in desert area of Turkmenistan with very low population density. The regional climate is extremely harsh and the temperature difference between day and night is very large. Local temperature in winter can be lower than -20 deg C. Because of the severe climate condition, the operation of the natural gas gathering station is put to a severe test. Based on application status of electric tracing in the South Yolotan gas, the factors affecting which may lead to system fault are analyzed. According to the problem which appeared on the scene, the countermeasures and the improvement direction are presented. Which can provide good example for popularization and application of the electric tracing technology.

Anti-explosion Model Selection and Calculation of Petroleum Chemical Plant Control Center

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

With the wide application of DCS control system in the production process in petrochemical industry, central control room function more powerful. To ensure that the central control room to withstand explosion will be more strict in case of accident. The blast resistant structure design has been paid more and more attention. This paper studied and compared through the analysis of the characteristics, explosion model and its calculation method and characteristics, combined with the force of research for example，to provide the basis for the design of central control room of the blast resistant structure of petroleum chemical plant.

A control scheme design for the PTA slurry preparation of PET plant

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

Abstract: According to the problem about low control accuracy of PTA slurry preparation in traditional PET, a cascade ratio control strategy which the variables are PTA slurry density and EG mixture for the PTA slurry preparation was designed based on the mathematical model of esterification reaction and analyses of control variable. Temperature correction which can improve control precision was introduced in molar formula.

Development and Application of the device using self control injection former in cluster gas wells

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

Foam drainage gas recovery is main technology of Recovery Gas by discharge Water in Sulige gas field. At present, the wellhead device of automatic filling foaming agent is mainly for single well, As for cluster gas wells still take filling mode of single well, will cause the increase of production cost. In this regard, the automatic injection device of the cluster wells has been developed. The device has more exports because of the multi-channel electromagnetic valve island, and these exports are respectively connected to the each position of casing pressure , and centrally controlled by the RTU. Finally , the automatic injection mode of one machine with multiple wells is realized through circle way.

he construction and application of SCADA system of China-Kazakhstan Natural Gas Pipeline

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

China-Kazakhstan Natural Gas Pipeline is part of Trans Asia Gas Pipeline (which is an important strategic energy channel which is invested and constructed by Chinese government and China National Petroleum Corporation), it’s the longest and largest long distanced gas pipeline invested, constructed and operated by Chinese corporation abroad. The pipeline adopted many advanced international technologies and standards from very beginning in order to construct a modern long distanced pipeline. Facing particular situations, SCADA (Supervisory Control and Data Acquisition) system of the pipeline integrated dispatch center, management office, station control system, station devices, line block valves together, realized the function of data acquisition and supervisory control through three levels, raised the technology level of automation, informatization, digitalization and provided a solid technical support for the safe and ordered operation and implementation of the gas pipeline operation.

Engineering design of safety instrument system in petrochemical industry

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

As one of the important annulus in Multilayer protective structure of the modern petrochemical industry, safety instrumented system take the corresponding measures in risk occurs, to prevent occurrence of hazardous events, avoid the potential danger to human body, equipment and environmental damage, or to mitigate the consequences caused by the loss of. Based on the existing theory, combined with the Butadiene unit SIS engineering design, it simply introduces the design principle, the design process, the content of each stage, and the key points of design, puts forward some valuable suggestions for the petrochemical SIS engineering design

The scenario study of start-up and shutdown of oil and gas processing by dynamic simulation technology

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

In the petroleum natural gas exploitation process, the research of initial start-up and shutdown of oil and gas treatment process system is one very important part in the system design, especially to the new technology and process. The research result of production start-up and shutdown directly influence the production safety and the period of the process system start-up and shutdown. The steady simulation has been gotten an extensive application in the process designing of the oil and gas production process system, but for non-steady state process, such as process system initial start-up and shutdown, the research has to ask for the help of dynamic state process simulation software. Using the Hysys dynamic state function, the page has studied the initial start-up and shutdown process in the oil and gas treatment process system, the result can give an effective guidance to the actual process production.

Well system efficiency monitoring research and Application

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

abc

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

abc

Application of PTA Weighing System in Polyester Plant

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

Changes in ethylene glycol and PTA molar ratio will cause the fluctuation of the esterification process in polyester plant. It is an important element to affect product quality, stable, efficient production. Accurate measurement of PTA solid powder, will directly affect the mixing of slurry density, this is crucial to the production of polyester plant. According to the characteristics of PTA solid powder, this article introduced the application of PTA weighing system in polyester plant from the aspects of Coriolis solid mass flow meter measuring principle and composition, PTA weighing system composition, installation, commissioning and maintenance and so on. Shows in dozens of polyester plants production applications, the use of Coriolis principle to design solid mass flow meter and weighing system can achieve the high accuracy, high reliability and high operability feeding weighing control of PTA solid power.

Design and application of gas detection and alarm system

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

Gas detection alarm system is the automation instrument, computer, communication network technology to combine the implementation of emergency treatment and management system of enterprise safety production. The system will alert, response, control procedures organically, scientific com., has satisfied the demand of petrochemical plant safety monitoring , implementation of the security alarm monitoring and distributed monitoring and centralized system, reduce the labor intensity of maintenance management personnel, to provide guarantee for the enterprise safety in production.

Application of Ultraviolet Fluorescence Analyzer in the Natural Gas Total Surfur Online Analysis

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

The total sulfur content in the natural gas is the key indicator of the process control and the important parameter affecting the safety、stability and long-period running of the plants. This article not only introduces the natural gas total sulfur online analysis method and the comparison result，the measurement theory, constitution and performance index of the ultraviolet fluorescence analyzer, but also explains the design principles, design proposal, each component of the system, practical application and the existing problems.

Design and Numerical Simulation of Control valves with Micro Flowrates for High Pressure Difference applications

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

Control valves with micro flowrates (CV <0.1), for high pressure difference (△P> 10Mpa) working applications, inevitably cause flashing or cavatition,which issues in problems such as mechanical vibration, stem breakage, erosion of the sealing surface, noises and so on.To decrease them, a orifice plate was introduced with multi-stages as throttling elements,aiming at the achievement of proportional pressure difference between stages, which could reduce flashing, cavatition and erosion in sealing area. Firstly, the key dimensions was determined by use of formulas ,and then CFD software was used to calculate the fluid conditions inside the valve. The result of numerical simulation and flow test, eventually shows that the theoretical calculation and numerical simulation are reliable.

Research on reliability of factory Claus fire detecting system in Puguang natural gas purification

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

The application of coke tower "three valves interlock" in Coking plant

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

This paper mainly introduces the application of Interlocking between the four way valve and the feed block valve of Coke tower，the design ideas，the hardware composition,and the realization method.

Application of PROFIBUS-DP communication technology in SUPCON DCS system

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

As the persistent development of the autocontrol technology and the widely application of data communication technique in the industry control area, PROFIBUS-DP become the most popular communication method of data transfer in industry control system in recent years for its speediness and stabilization. FW239-DP is used as the interface between SUPCON DCS and PROFIBUS-DP. It solve the problem about ECS-100 system communicate with third-party controller PROFIBUS-DP. The third-party controller can successfully achieve both-way communication with control station and operation station, at the same time the procedure parameter can become a part of DCS parameter. Through analysis the hardware and software operating principle, This text mainly discuss the PROFIBUS-DP communication between system ECS100 of SUPCON and the controller of DC power supply, which can control the on-sit DC power supply and can achieve power adjustment.

The Analysis and Application of Measuring Boiler Drum Level with Differential Pressure

2015, 51(2): 0-0.

Asbtract ( )

Related Articles | Metrics

The paper analyses the application of differential pressure in measuring boiler drum level ,introduces the simple condensate pot and double condensate pot and improved double condensate pot respectively, and explains the advantages and disadvantages by comparing the three ones. By combining with the engineering implementation, the paper emphasizes the method of using improved double condensate pot and differential pressure transmitter, discusses how to design appropriate structure parameter and how to set up pressure compensation system in DCS to promote the measuring accuracy.

Table of Content