Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for operating at least one air separation plant and oxygen consumption unit

A technology of air separation and separation unit, which is applied in the direction of combustion method, combustion equipment, cold treatment separation, etc., and can solve the problems of loss and large energy

Inactive Publication Date: 2015-11-25
LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Where the combustion unit is operating in a relatively irregular manner, the air separation units delivering oxygen for oxy-fuel combustion are designed to deliver at their nominal levels the full demand of the consumer in its normal operation, and Had to be vented to atmosphere or shut down when shut down for hours per day or days per week, the overall result of which was a considerable energy loss

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for operating at least one air separation plant and oxygen consumption unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The plant comprises an assembly 1 of four air separation units, a storage system 2 and an oxygen-enriched gas consumer 3 which may be a carbon fuel combustion unit or a gasifier. If the consumer is a combustion unit, it can also be supplied with air instead of oxygen.

[0037] Each air separation unit comprises a purifier 5A, 5B, 5C, 5D and a cold box 7A, 7B, 7C, 7D, which are substantially identical.

[0038] The air separation units can receive air from four air compressors 3A, 3B, 3C, 3D connected via a common line 9 so that they can supply all the air separation units.

[0039]In a first phase of operation, the oxygen-enriched gas consumer 3 receives gas from up to three air separation units. During this first operating phase, electricity costs exceed a first price threshold and are expensive. It is therefore desirable to reduce power consumption during this phase of operation as much as possible. To this end, a maximum of three air separation units or even a max...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a process for operating at least one air separation unit and an oxygen-rich gas consumer, comprising a carbon fuel combustion unit or a gasification unit, the oxygen-rich gas consumer being capable of generating electricity. The consumer is supplied with an oxygen-rich gas coming from the air separation unit or units.

Description

technical field [0001] The invention relates to a method for operating at least one air separation unit and an oxygen-enriched gas consuming plant comprising a carbon fuel combustion unit or a gasification unit, capable of generating electricity. The consumer is supplied with oxygen-enriched gas from one or more air separation units. Background technique [0002] CO produced by the carbon fuel consumption unit to generate energy 2 One of the capture technologies (called oxy-fuel combustion) requires very large quantities of oxygen (from 10,000M metric tons per day to 20,000M metric tons per day depending on the location) produced by a series of air separation units that are coupled with Associated with a unit that separates exhaust gases from combustion units to generate CO at the outlet of one or more combustion units 2 , CO 2 are then transported and stored. These air separation units are very large consumers of electrical energy, thus detrimental to the input to the g...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F25J3/04F23L7/00
CPCF25J3/04963F25J3/04515F25J3/04533F25J3/04545F25J3/04836F25J3/04842F25J3/04957F25J2230/24F25J2230/40F25J2245/40F25J2290/62Y02E20/34
Inventor A·吉亚尔N·阿拉德P-E·弗朗H·穆萨维
Owner LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE