Supercharge Your Innovation With Domain-Expert AI Agents!

Catalytic system for hydro-conversion of naphtha

一种加氢转化、催化剂的技术，应用在催化系统领域

Inactive Publication Date: 2007-07-04
INTREVEP SA
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Of course, any second stage or step required would add to the processing costs of fractions such as naphtha, so it would be necessary to develop solutions that would reduce the amount of sulfur and nitrogen without affecting the octane number (RON, MON) Methods

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
  • Catalytic system for hydro-conversion of naphtha
  • Catalytic system for hydro-conversion of naphtha
  • Catalytic system for hydro-conversion of naphtha

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A commercially available hydrotreating catalyst (HDT1) with nickel, molybdenum and phosphorus (18% by weight) attached to its support alumina, 10 cubic centimeters of this catalyst was activated at 280 ° C, and Amuay refinery was carried out according to the above methodology The plant's FCC C9+ naphtha is evaluated. The results are shown in Table 2.

[0071] The resulting olefin hydrogenation activity was high (between 93.0% and 94.28% by weight). As expected, the hydrodesulfurization activity increased from 92.1% to 97% (by weight) with the increase of temperature. Similarly, when the temperature increased from 300°C to 600°C, the hydrodenitrogenation activity also increased from 93.5% to more than 97% ( weight). However, the average molecular weight of the n-paraffin oil was very close to that of the n-paraffin oil in the feedstock, indicating a low acid catalysis.

[0072] General Catalyst HDT1

Embodiment 2

[0074] Make commercially available alumina powder B (Condea TM ) with a silicon-aluminum ratio of 11.7 proton state MFI zeolite powder (ST-5) (see Table 3 for its chemical composition) and both are powders, according to the ratio of 50% (weight) zeolite and 50% (weight) alumina mix.

[0075] MFI

Zeolite

General chemical formula

nAl

(10 20 / g)

Crystal size

(μm)

surface area

(m 2 / g)

ST-5

Na 0.23 h 7.38 Si 88.4 o 192

7.5

0.8

332

[0076] *nAl(10 20 / g): by chemical general formula and Avogadro constant (6.02×10 23 ) to calculate the total number of Bronsted bits

[0077] During the mixing of the two solids, 2.5% by weight acetic acid was added proportionally, or 2.4 grams of solid per milliliter of acid, was added to the mixture. After mixing, the solids were mixed with a twin extrusion mixer until uniformly mixed. After mixing well, squeeze the slurry into 1 / 16-inch extruded s...

Embodiment 3

[0082] Table 4 shows the results obtained with 10 cubic centimeters of HYC1 catalyst prepared in Example 2. The method of evaluating the catalyst followed the procedure described in Example 1.

[0083] It can be seen that the hydrodesulfurization activity (HDS) of the HYC1 catalyst is moderate, and when the temperature increases from 300 °C to 360 °C, its HDS activity also increases (between 86.3% and 96.2%). The hydrodesulfurization activity of the HYC1 catalyst is slightly lower than that of the commercially available catalyst (HDT1), especially at low temperatures, and their activities are similar at high temperatures. The olefin hydrogenation (HDO) of this catalyst is also moderate, and the initial olefin content is maintained at about 40%. But compared with HDT1 catalyst, HYC1 catalyst can reduce the average molecular weight of normal paraffin oil, and it will decrease with the temperature rising from 300℃ to 360℃. This indicates that the HYC1 catalyst has a very import...

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
temperatureaaaaaaaaaa
lengthaaaaaaaaaa
molecular weightaaaaaaaaaa
Login to View More

Abstract

A hydroconversion catalyst for hydrodesulfurizing feedstock while preserving octane number of the feedstock includes a support having a mixture of zeolite and alumina, the zeolite having an Si / Al ratio of between about 1 and about 20, and an active phase on the support and including a first metal selected from group 6 of the periodic table of elements, a second metal selected from the group consisting of group 8, group 9 and group 10 of the period table of elements and a third element selected from group 15 of the periodic table of elements. A hydroconversion process is also disclosed.

Description

technical field [0001] The present invention relates to a catalytic system which facilitates the hydroconversion of hydrocarbon feedstocks such as naphtha. Background technique [0002] In order to significantly reduce the emission of pollutants such as sulfur, many countries have implemented strict environmental regulations and energy-saving policies. [0003] Clean Air Act revisions and other regulations mandate reductions in emission levels of sulfur, olefins, aromatics, etc., which are considered major pollutants. [0004] A major component of the gasoline pool is naphtha, especially FCC naphtha, from which approximately 80% of the sulfur in the gasoline pool comes from. Moreover, this FCC naphtha comprises approximately 40% by volume of the total gasoline pool. [0005] Clearly, sulfur reduction will focus on FCC naphtha feedstock. [0006] Various hydroconversion methods have been developed to treat these feedstocks to reduce their sulfur content. One of these 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 Patents(China)
IPC IPC(8): C10G45/12B01J29/48B01J29/076B01J37/00B01J37/02B01J37/04C10G35/095C10G45/08C10G45/30C10G69/08
CPCB01J37/0009B01J29/076C10G2400/02B01J29/48B01J37/0205C10G45/30
Inventor J·特加达N·P·马丁内斯J·A·佩雷斯L·埃斯凯伦特J·M·拉罗利J·A·萨拉查
Owner INTREVEP SA
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com