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Oiling ship cargo hold boil-off gas treatment and recovery method

A recovery method and evaporated gas technology, applied in chemical instruments and methods, separation methods, and dispersed particle separation, etc., can solve problems such as environmental pollution, cargo damage, and failure to recover and treat cargo hold evaporated gas, so as to reduce cargo damage and avoid pollution. Effect

Inactive Publication Date: 2019-12-27
SHANGHAI MERCHANT SHIP DESIGN & RES INST
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for treating and recovering the vaporized gas in the cargo tank of an oil tanker, so as to solve the problem that the tank evaporated gas cannot be recovered in the prior art during the navigation of the tanker, or when operating at a wharf without a vapor receiving facility. It can only be discharged directly to the atmosphere, thereby polluting the environment and causing technical problems of cargo damage

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  • Oiling ship cargo hold boil-off gas treatment and recovery method
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Embodiment Construction

[0031] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0032] see figure 1 ,

[0033] In the prior art, the recovery and treatment technology of the evaporated gas of the oil and chemical ship, in the prior art, take two cargo holds on the oil and chemical ship as an example, for example, the cargo hold of the oil and chemical ship is left 100 and the cargo hold of the oil and chemical ship is right 200,

[0034] Cargo tank hatches 101 are provided on the top of the cargo tank 100 of the oil tanker and the right tank 200 of the tanker tank,

[0035] The hatches at the top of the cargo tank 100 of the oil and chemical ship and the right 200 of the cargo tank of the oil and chemical ship are respectively connected with a cargo tank ventilation pipe 1 102 and a cargo tank ventilation pipe 2 202 which are communicated with their respective inner cavities;

[0036] The ends of cargo hold ventilation pipe ...

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Abstract

The invention discloses an oiling ship cargo hold boil-off gas treatment and recovery method. The method comprises a wharf recovery method and a sailing recovery method. The wharf recovery method specifically comprises the following steps that in a wharf without an evaporated gas receiving device, a first valve is closed, and a sixteenth valve is opened; the boil-off gas enters a boil-off gas recovery and treatment device installed on a ship, the steam treated by the boil-off gas recovery and treatment device is recovered to be in a liquid state again, and liquid goods generated by the boil-off gas are recovered into a cargo hold through a fourteenth valve or recovered into a boil-off gas recovery and storage tank arranged on the ship through a thirteenth valve; after the technology is adopted, the boil-off gas in the cargo hold cannot be discharged into the atmosphere under any condition and working condition, so that the cargo damage is well reduced, and meanwhile, the pollution of the boil-off gas to the environment is also avoided.

Description

technical field [0001] The invention relates to the field of evaporated gas treatment, in particular to a method for treating and recovering evaporated gas in an oil tanker cargo hold. Background technique [0002] In the application of oil and gas recovery technology and the storage and transportation system of petrochemical enterprises and other oil product loading and unloading links, a large number of volatile organic components VOCs in the material gasify and escape, causing environmental pollution and product loss. Oil and gas volatilization endangers operation safety, pollutes the environment, affects the quality of oil products, and also causes waste of energy. Therefore, the problem of volatilization control in the process of oil loading and unloading has attracted great attention from domestic and foreign oil storage and transportation and environmental protection industries. [0003] There are four ways to prevent oil evaporation loss and reduce environmental pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00B01D53/18B01D53/04
CPCB01D53/002B01D53/04B01D53/18
Inventor 黄信男陈俊王成
Owner SHANGHAI MERCHANT SHIP DESIGN & RES INST
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