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High-efficiency coalescing separation equipment used in alkylation units

A technology of coalescence separation and alkylation, applied in liquid separation, separation methods, grease/oily substance/float removal devices, etc., can solve the problem of proprietary equipment, alkylation The device is not applicable and cannot meet the expectations of the industrialization of petrochemical production, so as to reduce the short-circuit phenomenon, ensure full utilization, and achieve the effect of rapid separation

Active Publication Date: 2015-11-18
SHANGHAI MISU ENVIRONMENTAL PROTECTION TECHCO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this equipment is mainly used for the treatment of oily sewage, that is, the treatment of oil removal in water, and this equipment is not applicable in the alkylation unit
[0009] Therefore, due to the above-mentioned problems in the prior art, the proprietary equipment for the efficient separation of oil and water (oleic acid) in the alkylation unit has not been solved so far, and it is far from meeting the expectations of industrialization of petrochemical production.

Method used

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  • High-efficiency coalescing separation equipment used in alkylation units
  • High-efficiency coalescing separation equipment used in alkylation units

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In a 200,000-ton / year alkylation project in Shandong Province, the high-efficiency coalescence separation equipment of the present invention was used to separate the extracted refrigerant-propane and water.

[0031] Its specific operation process and effects are described as follows:

[0032] 1. Operating conditions of propane dehydration equipment

[0033] The main components are: 95% propane and 5% water at volume flow rate; the processing capacity is 1063kg / h propane, 72kg / h water, the operating temperature is 52°C, and the operating pressure is 1.75MPa. as attached figure 2 As shown, since the oil phase content is much greater than the water phase, it belongs to the dehydration process in oil, so the oil collection chamber on the top of the shell is changed to the water bag at the bottom of the shell, and the water phase outlet is set on the water bag.

[0034] 2. Implementation process

[0035] When the mixture of propane and water enters the high-efficiency co...

Embodiment 2

[0041] In a 160,000 tons / year industrial isooctane project in Zhejiang Province, the acid settling tank uses the high-efficiency coalescence separation equipment of the present invention to separate the oil phase-mixed hydrocarbons and concentrated sulfuric acid.

[0042] Its specific operation process and effects are described as follows:

[0043] 1. Operating conditions of acid settling tank

[0044] Table 1 Design physical parameters of acid settling tank

[0045] Material name

Mixed hydrocarbons, washing water

unit

oil phase flow

77113

kg / h

Oil phase density

554

kg / m

acid phase flow

256116

kg / h

acid phase density

1840

kg / m

Operating Temperature Max / Normal / Minimum

(requires cold storage)

℃

Operating Pressure Max / Normal / Minimum

0.6

MPa(G)

[0046] 2. Implementation process

[0047] This example can refer to the attached figure 2 , the mixture of mixed hydroc...

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Abstract

The invention discloses efficient coalescence-separation equipment for an alkylating device, and belongs to the field of oil-water separation of petrochemical industry. The efficient coalescence-separation equipment comprises a housing and an internal part; a mixed liquid inlet part, a water (acid) phase outlet part, and an oil phase outlet part are formed in the housing; a liquid distributor is arranged at the mixed liquid inlet part; an oil collecting chamber above which an oil phase outlet is formed is arranged at the oil phase outlet part; a rectifying and uniform distributing device, a coarse graining coalescence section, a modified corrugated and reinforced separation section and a nanofiber deep separation section are arranged in the housing along the direction the mixed liquid flows; a position gauge is also arranged in the housing. According to the efficient coalescence-separation equipment for the alkylating device, the shallow pool theory and coarse graining technology are integrated, so that high oil-water (-acid) separation efficiency can be realized; compared with the existing single filler oil-water separation equipment, the efficient coalescence-separation equipment, disclosed by the invention, has obvious characteristics of being high in separation efficiency, high in processing capability, high in operation flexibility, small in floor area, small in one-time investment for equipment, etc.

Description

technical field [0001] The patent of the present invention relates to the technical field of petrochemical industry, in particular to high-efficiency coalescence and separation equipment for oil and water (oleic acid) in an alkylation unit. Background technique [0002] For a long time, the quality of my country's oil products has lagged behind, and the content of sulfur, aromatics and olefins in them is high, which has aggravated the pollution level of motor vehicle exhaust emissions and has become one of the driving forces for the frequent appearance of smog. With the increasingly stringent environmental protection regulations and the continuous upgrading of gasoline quality indicators, the demand for clean fuels in domestic and foreign markets continues to increase. [0003] The alkylation unit uses isobutane and low-molecular olefins (generally C3-C5 olefins, mainly n-butene) in liquefied gas as raw materials, and reacts under the action of a strong acid catalyst (sulfur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/40C02F101/32
Inventor 张剑周麟张学清钱鹏许萧苗志强葛永达杨东宝吴钦学夏永慧
Owner SHANGHAI MISU ENVIRONMENTAL PROTECTION TECHCO LTD
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