Fine processing method of crude hexane

A technology for fine processing and crude hexane, applied in separation methods, hydrotreating processes, chemical instruments and methods, etc., can solve the problems of increased load of processing equipment, inability to meet production requirements, and increased processing costs, and achieve improved fractionation accuracy. , good stability and regeneration performance, and the effect of reducing energy consumption

Active Publication Date: 2021-02-26
洛阳金达石化有限责任公司
View PDF19 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The heavy and inferior quality of crude oil has led to continuous changes in the process of petroleum products. The content of other components increases, and the original processing technology can no longer meet the production demand
At the same time, the load on the original processing device increases, and the processing cost increases

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
  • Fine processing method of crude hexane
  • Fine processing method of crude hexane
  • Fine processing method of crude hexane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A fine processing method of crude hexane, which comprises the following steps:

[0026] Step 1. The raw material crude hexane is mixed with hydrogen, and after exchanging heat with the reaction product, the temperature is 73°C, heated to 144°C by a heater, enters the reactor to contact with the catalyst, and carries out the hydrofining reaction under the action of the hydrofining catalyst , Catalyst I is a Ni-based catalyst with a spherical appearance and a specific surface area of ​​50-90m 2 / g, pore volume: 0.15~0.3ml / g, bulk specific gravity: 0.6±0.02g / ml, radial compressive strength: 24~38N / grain.

[0027] Step 2. After the gas-liquid separation of the reaction product in the low-pressure separator, it enters the first partition tower for fractionation, and the petroleum ether I product comes out from the top of the tower; the mixed carbon six comes out of the side line, and the mixed carbon six enters the de-hexanizer for de-hexanization Separation, petroleum ethe...

Embodiment 2

[0036] A fine processing method of crude hexane, which comprises the following steps:

[0037] Step 1. The raw material crude hexane is mixed with hydrogen, and after heat exchange with the reaction product, the temperature is 72°C, heated to 147°C by a heater, entering the reactor to contact with the catalyst, and the hydrofining reaction is carried out under the action of the hydrofining catalyst , Catalyst I is a Ni-based catalyst with a spherical appearance and a specific surface area of ​​60-85m 2 / g, pore volume: 0.18~0.35ml / g, bulk specific gravity: 0.6±0.02g / ml, radial compressive strength: 32~40N / grain.

[0038] Step 2. After the gas-liquid separation of the reaction product in the low-pressure separator, it enters the first partition tower for fractionation, and the petroleum ether I product comes out of the top of the tower; the mixed carbon six comes out of the side line, and enters the de-n-hexane tower for separation; The heavy component oil comes out from the b...

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

PropertyMeasurementUnit
densityaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to view more

Abstract

The invention relates to a fine processing method of crude hexane, which comprises the following steps of: fully mixing the raw material crude hexane with hydrogen, carrying out heat exchange with thereaction product, heating to 130-190 DEG C by a heat exchanger, introducing the mixture into a catalyst-loaded hydrogenation reactor, and carrying out hydrofining reaction under the action of a hydrofining catalyst to remove aromatic hydrocarbons and unsaturated hydrocarbons in the raw material; carrying out gas-liquid separation on a product after reaction through a low-pressure separator, and then feeding the product into a fractionation system for fine cutting; enabling the reaction product to firstly enter a first partition plate tower of the fractionation system to be separated, discharging a petroleum ether I product from the tower top, discharging mixed C6 from the side line, and then enabling the mixed C6 to enter an n-hexane removal tower to be further cut to obtain petroleum ether II and n-hexane products; and conveying a tower bottom product of the first partition plate tower to a second partition plate tower to be separated to obtain petroleum ether III and W1-30 products.The method has the advantages that a high-quality hexane product can be obtained, the byproduct utilization rate is increased, and the economic benefit is improved.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry and relates to a fine processing method of crude hexane. Background technique [0002] The heavy and poor quality of crude oil has led to continuous changes in the petroleum product process. At this stage, the hexane content in crude hexane has decreased, and the content of C5 components, C7, and C8 components has increased. The original processing technology can no longer meet the production requirements. need. At the same time, the load of the original processing device increases, and the processing cost increases. In order to produce high-quality hexane products, increase the utilization rate of by-products, and improve economic benefits, many manufacturers have improved and optimized the processing technology of crude hexane. Contents of the invention [0003] The present invention aims at the above-mentioned shortcomings of the prior art, and provides a fine processing meth...

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 Applications(China)
IPC IPC(8): B01D3/14B01D3/00C10G67/02
CPCB01D3/141B01D3/009C10G67/02C10G2300/202C10G2300/1081C10G2300/4087
Inventor 徐翠翠牛同治韩明赵华柴丽娜李建伟娄豪王银盘鲍丰
Owner 洛阳金达石化有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap