Mitigation of vapor cloud explosion by chemical inhibition

A vapor cloud explosion and inhibitor technology, applied in the field of mitigating vapor cloud explosion through chemical suppression, can solve problems such as destruction and explosion equipment, and achieve the effects of reducing consequences, reliable methods, and risk reduction

Inactive Publication Date: 2015-07-22
TOTAL RAFFINAGE CHIM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

historical evidence has shown that ignition of such clouds ca

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  • Mitigation of vapor cloud explosion by chemical inhibition
  • Mitigation of vapor cloud explosion by chemical inhibition
  • Mitigation of vapor cloud explosion by chemical inhibition

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[0116] Where flammable gases are present include utilities, chemical and petrochemical manufacturing plants, petroleum refineries, metallurgical industries, breweries, paint and varnish manufacturing, offshore operations, printing, semiconductor manufacturing, pharmaceutical manufacturing, and aerosol can filling operations Processed as a raw material, product or by-product in many industrial applications, including In addition, flammable gases are released through leaks in above-ground or underground piping systems or leaks of flammable liquids. The present invention is very attractive for refineries and petrochemical plants.

[0117] A refinery can consist of multiple units.

[0118] The invention can be applied, for example, to three units of an oil refinery, eg, steam cracker unit, butadiene separation unit, aromatics unit, etc.

[0119] Each unit has been divided into several processing areas. Each unit can have, for example, 1 to 4 processing zones.

[0120] Each pro...

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Abstract

A method to mitigate the consequences of a vapor cloud explosion due to an accidental release of a flammable gas in an open area, comprising: defining an hazardous area wherein an accidental release of flammable gas is likely to happen; receiving (300, 305) a signal from a detector device able to detect the presence of the flammable gas within the hazardous area, upon reception of a signal indicating the presence of the flammable gas within the hazardous area, generating (309) a control signal to activate a release of a flame acceleration suppression product in the hazardous area, at a rate that is determined as a function of the volume of said hazardous area.

Description

technical field [0001] The present invention relates to a method of mitigating the consequences of unconfined or partially confining vapor cloud explosions by suppression. Background technique [0002] A particular hazard in petrochemical plants and refineries is the accidental release of large quantities of flammable materials which lead to the formation of flammable clouds within the facility. Historical evidence has shown that ignition of such clouds can lead to devastating explosions and destruction of equipment. Such accidents are commonly named "Vapor Cloud Explosion" (VCE) or "Unconfined Vapor Cloud Explosion" and referred to as "VCE". [0003] Flame suppression refers to the weakening of a flame, ie, the reduction of the rate of the overall exothermic reaction in the flame. Depending on the flow field in which the flame exists, this weakening may or may not result in extinguishment. [0004] Flame suppression is distinct from extinguishing, flame extinction, or fl...

Claims

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Application Information

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IPC IPC(8): A62C99/00A62C3/06A62C4/00
CPCA62C99/0009A62C4/00A62C3/06A62C99/00A62C37/36
Inventor 克里斯托弗·盖雷德克·罗森丹斯莱奥波德·霍雷贝克吉勒斯·赫尔施格
Owner TOTAL RAFFINAGE CHIM
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