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A method of coal gas emission reduction for steel companies

IP.com Disclosure Number: IPCOM000240905D
Publication Date: 2015-Mar-12
Document File: 3 page(s) / 71K

Publishing Venue

The IP.com Prior Art Database

Abstract

Based on the ideal gas state equation, pipeline network model is established for gas planning and dispatching decision support, considering production plan and real-time condition of the gas network.

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A method of coal gas emission reduction for steel companies Background

High energy consumption and emission is the common problem steel companies have to face. These years the price of steel products keeps dropping and competition between producers becomes intense. Companies pay more attention to reduce cost rather than expand production and increase sales.

Energy costs accounted for 25% ~ 30% of the total cost in steel enterprise, so how to reduce energy consumption cost is one of the key problems.

Problem

The cost of coal gas consumption accounts for 40% of total energy cost. How to reduce it?

Main Idea

Step1: Predict gas demand and supply

1


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Step2: Convert prediction result to gas volume in ideal gas state

Ideal gas state equation: PV=nRT
-In standard condition, i.e.P=101325Pa, T=273.15K (0

V = Patm * Vatm

Convert network structure to equilibrium

1. Define the connection between pipeline and device

2. Define the connection between pipeline and gasholder

3. Define connection between pipelines and gas transformer Step4: Plan and dispatch based on gas pressure

                                    ) and n=1.0mol, Vm=22.414×10-3m3 -According to the relative molecular mass of the gas, convert the mass into mol
-Change the predicted result of energy supply & demand into volume of gas

Step3: Convert network structure to equilibrium based on the ideal gas state equation

Based on ideal gas state equation, define pressure & volume of energy network

1. assume the temperature is constant, because...