Separation of Ethanol - Benzene Azeotrope

by Pressure Swing Distillation and Extractive Distillation

Han Qiqi

Numerical Analysis of Methane Tank Farm Leakage

Zhang Zhe

Inert Gas Supply Calculation for Gas Tight System of Storage Tank

Tan Haijun

Summary of Flue Gas Mercury Removal Technology

in Coal-Fired Power Plant

Qian Like

Wang Ping

Design and Application of T-Type Oil-Water Separator

Hao Lixia, et al

Discussion on Manufacturing Process of Large Heat Exchanger

Zhang Longhua, et al

Design of Flare Gas Condensate Buffer System

Cao Xiaojuan, et al

Cause and Solution of Damp Dust or

Water Accumulation in Spray Dry Collector

Liu Dianyu

Structural Design of Single Burner Coal Slurry Gasifier

Yang Weiwei

Discussion on Wall Thickness Calculation and

Stress Characteristics of Low Pressure

Storage Tank under Bilateral Force of Tension and Pressure

Han Ding, et al

Analysis on Design of Negative Pressure Ventilation

Auto-Control Scheme for Closed Plant Building

Huang Shaojie, et al

Anti-Explosive Design of Building Structure Elastic-Plastic Dynamic

Time-History Analysis of Single Degree of Freedom System

Yu Jiang

Discussion on Plot Plan Design of Combination Layout

of a Chemical Project

Wu Jun, et al

Integration Concept of Technical Standard Management

Zhang Zenghui

Discussion on Application of Cybernetics in Overseas Project Marketing

Zhao Yifan

S

Separation of Ethanol - Benzene Azeotrope

by Pressure Swing Distillation and Extractive Distillation

Han Qiqi

(CNOOCShandongChemicalEngineeringCo.,Ltd.,Jinan250101)

In this paper, Aspen Plus is used to study the process flow of separation of ethanol-benzene binary azeotrope by pressure swing distillation and extractive distillation. The tower equipment costs of the two kinds of separation processes are similar, and the extractive distillation process is more energy efficient than the conventional pressure swing distillation process, reboiler energy saving of about 34%; heat integrated pressure swing distillation process is about 17.2% energy saving than the extractive distillation process, and the required steam grade is lower.

heat integrated pressure swing distillation extractive distillation azeotrope ethanol-benzene

Numerical Analysis of Methane Tank Farm Leakage

Zhang Zhe

(HualuEngineering&TechnologyCo.,Ltd.,Xi’an710065)

In this paper, the CFD calculation software FLUENT is used to simulate the leakage and diffusion process under different conditions to determine the morphology and prevention mechanism of methane leakage. The distribution of the concentration after gas leakage and diffusion is analyzed, and the simulation results are analyzed and discussed. This paper also summarizes the general law of gas leakage and diffusion.

Key words methane leakage numerical analysis

Inert Gas Supply Calculation for Gas Tight System of Storage Tank

Tan Haijun

(ChinaChengdaEngineeringCo.,Ltd.,Chengdu610041)

The inert gas supply quantity of the gas tight system is not only affected by the amount of make-up gas required for the stored liquid pumped out from the storage tank and the amount of make-up gas required for the condensation and contraction of the gas in the tank due to the change of the outside air temperature, it is also affected by the safety and monitoring facilities of the gas supply system and the storage tanks. With the combination of the project examples, this paper introduces the calculation of storage tank inert gas tight system and the similarities and differences with the breathing valve, which can provide reference for similar engineering design.

Key words storage tank breathing valve inert gas tight system safety monitoring facility

Summary of Flue Gas Mercury Removal Technology

in Coal-Fired Power Plant

Qian Like

(SichuanChenguangEngineeringDesignInstitute,Chengdu610041)

Wang Ping

(ChengduDongfangKWHEnvironmentalProtectionCatalystsCo.,Ltd.,Chengdu610065)

Mercury in flue gas is usually in the form of Hg0and Hg2+, and the ratio between Hg0and Hg2+is related to the composition of the flue gas, coal type, unburned carbon content, catalyst and so on. This paper analyzes and studies the flue gas mercury removal technology in coal-fired power plant and its applicability.

Key words coal-fired power plant flue gas mercury removal technology

Design and Application of T-Type Oil-Water Separator

Hao Lixia, et al

(ChinaWuhuanEngineeringCo.,Ltd.,Wuhan430223)

Gravity oil-water separator is the process equipment often used in the petrochemical field to achieve the purpose of oil and water separation. This paper mainly elaborates a kind of T-type oil-water separator from the aspects of design basis, structure characteristic, working principle and practical production application. The design has certain guiding effect on the structure optimization design of oil-water separator, and provides a certain reference for the selection of the equipment.

Key words T-type oil-water separator structure optimization design

Discussion on Manufacturing Process of Large Heat Exchanger

Zhang Longhua, et al

(SichuanKexinMechanicalandElectricalEquipmentCo.,Ltd.,Shifang618400)

This paper describes in detail the manufacturing process and key points of the floating head inlet gas preheaterφ3600 with the heat transfer area of 2538 m2 of a company's 600,000 tons/year acetic acid project .

Key words acetic acid preheater floating head heat exchanger

Design of Flare Gas Condensate Buffer System

Cao Xiaojuan, et al

(EastChinaEngineeringScience&TechnologyCo.,Ltd.,Hefei230024)

This paper introduces the composition, working principle and key design points of flare gas condensate buffer system. Compared with the conventional flare gas knock-out system, the use of liquid buffer system instead of condensate transfer pump has the advantages of high safety, low maintenance costs and so on. This system is particularly applicable to the northern cold regions. The flare gas condensate buffer system provides an alternative choice to the flare gas condensate storage and transportation.

Key words knock-out system liquid buffer tank working principle key design point

Cause and Solution of Damp Dust or

Water Accumulation in Spray Dry Collector

Liu Dianyu

(HuayuDairyMachineryManufacturingCo.,Ltd.,Anda151400)

The dust collecting forms of spray drying are not the same. Less or no dust should be dissipated, and the collected dust should also be dry. If the collected dust is with too high moisture content or serious water accumulation, it means the structure design of the collector is wrong.

Key words spray drying dust collecting moisture content over standard cause solution

Structural Design of Single Burner Coal Slurry Gasifier

Yang Weiwei

(ChinaWuhuanEngineeringCo.,Ltd.,Wuhan430223)

This paper introduces the structural design of single burner coal slurry gasifier, and points out the key points in the design of gasifier shell, internals and refractory structure.

Key words single burner coal slurry gasifier shell internals refractory material

Discussion on Wall Thickness Calculation and

Stress Characteristics of Low Pressure

Storage Tank under Bilateral Force of Tension and Pressure

Han Ding, et al

(HualuEngineering&TechnologyCo.,Ltd.,Xi’an710065)

In regard to the tank wall thickness calculation of API620 low pressure storage tank under bilateral force of tension and pressure, this paper presents an analytical method to compare with the graphical method in Appendix F.2 of the standard, and respectively analyzes the advantages and disadvantages, and stress features of tank under bilateral force of tension and pressure.

Key words bilateral force of tension and pressure analytical method storage tank wall thickness calculation

Analysis on Design of Negative Pressure Ventilation

Auto-Control Scheme for Closed Plant Building

Huang Shaojie, et al

(CNOOCShandongChemicalEngineeringCo.,Ltd.,Jinan250000)

In this paper, taking a chlorine gas treatment unit as an example, using the existing means of auto-control technology, the four feasible process design schemes are discussed to study the investment costs, automation level, operating costs and other aspects. The optimization scheme is put forward and the mechanical ventilation design for closed plant building is briefly analyzed.

Key words poison and harmful closed negative pressure ventilation auto-control design

Anti-Explosive Design of Building Structure Elastic-Plastic Dynamic

Time-History Analysis of Single Degree of Freedom System

Yu Jiang

(ChinaChengdaEngineeringCo.,Ltd.,Chengdu610041)

For the typical buildings with anti-explosion requirements in the petrochemical plant area, this paper summarizes and discusses the design steps and related key points of the elastic-plastic dynamic time-history analysis method of the single degree of freedom system used for anti-explosion design of structure under the common explosion types, and focuses on the explosive load feature calculation. The structure is simplified as a single degree of freedom system of elastic - plastic dynamic balance and a reliable load force system. The dynamic response of the structure is solved by time - history numerical integration method.

Key words anti-explosion structure design single degree of freedom system elastic-plastic dynamic balance time-history numerical integration analysis

Discussion on Plot Plan Design of Combination Layout

of a Chemical Project

Wu Jun, et al

(ShanghaiHuaYiEngineeringCo.,Ltd.,Shanghai200241)

In the construction process of the industrial enterprise project, the plot plan design is particularly important. According to the combination layout scheme of plot plan design of a certain chemical project, this paper discusses the economical use of land for plant plot plan design and summarizes the basis of plant combination construction in the plot plan design process.

Key words plot plan layout plant combination

Integration Concept of Technical Standard Management

Zhang Zenghui

(LanzhouBranchofSINOPECNingboEngineeringCo.,Ltd.,Lanzhou730060)

Based on the analysis of the demand of technical standard management, this paper puts forward the concept of standard management integration for the problems existing in the standard management of an engineering company. This paper also discusses the contents and characteristics of the integration concept, and finally implements a comprehensive, flexible, orderly and controllable technical standard management platform.

Key words engineering company technical standard demand analysis management integration

Discussion on Application of Cybernetics in Overseas Project Marketing

Zhao Yifan

(ChinaChengdaEngineeringCo.,Ltd.,Chengdu610041)

Based on the theory of cybernetics and combining the marketing practice of engineering company in international project market, this paper observes the influence of market and customer demand on marketing behavior of engineering company from another perspective. The use of cybernetics feedback control principle, timely and objectively to provide market and customer feedback, enable the engineering companies to adjust and optimize the deviation between the actual needs of customers and the understanding of the real needs of customers at all stages of the project by the engineering companies, which is an important means of control objective for the engineering companies to meet the market and customer demand.

Key words feedback control deviation engineering marketing

(TranslatedbyLuLang)