Method for synthesizing oil modifier by hydrogenating washing oil

A technology of modifier and oil washing, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, hydrocarbon oil treatment, etc. It can solve the problems of potential safety hazards, high hydrogenation pressure, high equipment requirements, etc. problems, to achieve the effect of stable performance, low hydrogenation pressure and high activity

Active Publication Date: 2014-04-16
南京齐东化工有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The reported preparation of oil modifier by washing oil is synthesized by hydrogenation, but the pressure of hydrogenation is high, the requirements for equipment are high, and there are safety hazards at the same time
Moreover, two-step or multi-step hydrogenation methods are often used for synthesis, which has complicated processes and high costs

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Catalyst preparation

[0016] (1) Preparation of mixed solution: Prepare ammonium molybdate, cobalt nitrate, and nickel nitrate aqueous solutions with molybdenum, cobalt, and nickel mass ratios of 14:22:64 with distilled water, and the total concentration is 1mol / L.

[0017] (2) Impregnation: At 40°C, immerse the alumina carrier washed with distilled water into the solution, keep soaking at 40°C for 8 hours, take out the carrier and dry it, and then put in fresh molybdenum of the same concentration prepared in step (1) ammonium nitrate, cobalt nitrate, nickel nitrate aqueous solution, so repeated 4 times.

[0018] (3) Roasting: Dry the impregnated carrier at 130°C, and then calcinate at 450°C to obtain molybdenum oxide, cobalt oxide and nickel oxide (where molybdenum, cobalt, and nickel account for 4% and 6% of the total catalyst mass percentage). %, 18%), and the rest are catalysts supported by alumina.

Embodiment 2

[0020] catalyst activation

[0021] In a 100ml continuous fixed-bed reactor, 80ml of the catalyst prepared in Example 1 was charged, and at a pressure of 3MPa, the catalyst was activated with carbon disulfide. Dissolve carbon disulfide accounting for 35% of the catalyst weight in 200# solvent oil to obtain a carbon disulfide concentration of 1% in the carbon disulfide activated oil. The specific activation process is as follows: first, use hydrogen to raise the temperature of the catalyst, start injecting the prepared carbon disulfide activation oil at 150°C, gradually raise the temperature to 300°C, and activate for 24 hours. The activated oil space velocity is 2 / h, and the hydrogen-to-oil ratio is 600.

Embodiment 3

[0023] Wash oil hydrogenation

[0024] After the catalyst was activated in Example 2, hydrogenation was added to the reactor to increase the pressure to 10MPa, and the high-pressure pump injected washing oil, the space velocity was controlled to 0.3 / h, the hydrogen-oil ratio was 2000, and the reaction was performed at a temperature of 360°C. The activity was stable and the reaction was stable for 800 hours. , to obtain a pale yellow transparent reaction product.

[0025] Main indicators of raw material washing oil: brown turbid appearance, irritating taste, density 1.05, total sulfur 3000ppm, bromine value 25 gBr 2 / 100g, freezing point 16°C, distillation range 230-290°C,

[0026] Product after hydrogenation: light yellow and transparent appearance, no peculiar smell, density 0.92, total sulfur 45ppm, bromine value 1 gBr 2 / 100g, freezing point -30°C, distillation range 100-290°C.

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 invention discloses a method for synthesizing an oil modifier by hydrogenating washing oil. The method comprises the following step of: putting the washing oil into a continuous fixed bed reactor with a catalyst for hydrogenation reaction, wherein the hydrogenation pressure is 5 to 10MPa, the reaction temperature is 340 to 430 DEG C, the volume space velocity is 0.2 to 1.0 / h, and the hydrogen-oil ratio is (600-3,000):1; and the catalyst comprises 2 to 6 mass percent of molybdenum, 3 to 8 mass percent of cobalt, 15 to 26 mass percent of nickel and the balance of alumina. The stable test time of the hydrogenation reaction is 800 hours. The process is simple, the hydrogenation pressure is low and reaction conditions are mild.

Description

technical field [0001] The invention specifically relates to a method for synthesizing an oil product modifier through oil washing and hydrogenation. Background technique [0002] my country's coking industry will produce 20 million tons of coal tar every year, which contains more than 1 million tons of washing oil. Since there are no downstream products with high added value, most of the washing oil is used for simple fuel burning, making the price of washing oil very high. Low. Washing oil hydrogenation synthetic oil upgrading agent is used for naphtha, gasoline and diesel upgrading, which increases the added value of the product and effectively utilizes resources. [0003] The reported preparation of oil modifier by washing oil is synthesized by hydrogenation, but the pressure of hydrogenation is high, the requirements for equipment are high, and there are safety hazards. Moreover, a two-step or multi-step hydrogenation method is often used for synthesis, which is co...

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): C10G49/04B01J23/883
Inventor 刘卫星陈国俊蒋继星
Owner 南京齐东化工有限公司
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