Carrier of hydrogen desulfurization catalyst and preparation method and catalyst prepared by preparation method

A hydrodesulfurization and catalyst technology, which is applied to catalyst carriers, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of long catalyst preparation period and complex preparation process, and achieve good hydrodesulfurization activity, good desulfurization effect, high The effect of diesel oil recovery

Active Publication Date: 2016-07-20
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst can achieve the effect of ultra-deep desulfurization of diesel oil, but the preparation process is complicated, and the preparation period of the catalyst is also long

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] This embodiment provides a method for preparing a carrier of a hydrodesulfurization catalyst, which includes the following steps:

[0051] Step 1, at first get the Y molecular sieve of 100g (adopt directing agent-mother liquor hydrothermal synthesis, wherein: SiO 2 with Al 2 o 3 The molar ratio is 15, the particle size is 100nm), and the ammonium nitrate solution of 10g / 100mL is used for contact exchange, the liquid-solid volume ratio is 10:1, the temperature of contact exchange is 90°C, and the time is 3h; then use Wash and filter with deionized water until the filtrate is neutral; finally, dry the washed Y molecular sieve in an oven at 120°C for 4 hours, then transfer it to a muffle furnace at 550°C for calcination for 4 hours; repeat the above steps until the Y molecular sieve after exchange The content of sodium ions is less than 0.2 wt%, and the primary product is obtained.

[0052] Step 2, first take by weighing 10g of the initial product in step 1, and record ...

Embodiment 2

[0056] This embodiment provides a method for preparing a carrier of a hydrodesulfurization catalyst, which includes the following steps:

[0057] Step 1, at first get the Y molecular sieve of 100g (adopt directing agent-mother liquor hydrothermal synthesis, wherein: SiO 2 with Al 2 o 3 The molar ratio is 15, the particle size is 100nm), and the ammonium nitrate solution of 10g / 100mL is used for contact exchange, the liquid-solid volume ratio is 10:1, the temperature of contact exchange is 90°C, and the time is 3h; then use Wash and filter with deionized water until the filtrate is neutral; finally, dry the washed Y molecular sieve in an oven at 120°C for 4 hours, then transfer it to a muffle furnace at 550°C for calcination for 4 hours; repeat the above steps until the Y molecular sieve after exchange The sodium ion content is less than 0.2wt%, and the primary product is obtained.

[0058] Step 2, first take by weighing 10g of the initial product in step 1, and record the w...

Embodiment 3

[0062] This embodiment provides a method for preparing a carrier of a hydrodesulfurization catalyst, which includes the following steps:

[0063] Step 1, at first get the Y molecular sieve of 100g (adopt directing agent-mother liquor hydrothermal synthesis, wherein: SiO 2 with Al 2 o 3 The molar ratio is 15, the particle size is 100nm), and the ammonium nitrate solution of 10g / 100mL is used for contact exchange, the liquid-solid volume ratio is 10:1, the temperature of contact exchange is 90°C, and the time is 3h; then use Wash and filter with deionized water until the filtrate is neutral; finally, dry the washed Y molecular sieve in an oven at 120°C for 4 hours, then transfer it to a muffle furnace at 550°C for calcination for 4 hours; repeat the above steps until the Y molecular sieve after exchange The sodium ion content is less than 0.2wt%, and the primary product is obtained.

[0064] Step 2, first weigh 10g of the initial product in step 1, and measure the water absor...

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PUM

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Abstract

The invention provides a carrier of hydrogen desulfurization catalyst and a preparation method and catalyst prepared by the preparation method. The preparation method of the carrier includes performing contact exchange of high-aluminum and -silica ratio ammonium nitrate by a Y molecular sieve of small particles; performing zirconium modification of the exchanged Y molecular sieve to obtain Zr-modified Y sieve; mixing the Zr-modified Y molecular sieve with pseudo-boehmite, extrusion aid and adhesives, extruding, drying and roasting to obtain the carrier of the hydrogen desulfurization catalyst. The carrier of the hydrogen desulfurization catalyst has the Zr-modified Y sieve. The hydrogen desulfurization catalyst of the carrier is high in activity and good in desulfurization effect. The hydrogen desulfurization catalyst of the carrier is used for hydrogen desulfurization, and yield of diesel oil is up to 100%.

Description

technical field [0001] The invention belongs to the field of catalysts, and relates to a carrier for a hydrogenation desulfurization catalyst, a preparation method and a catalyst prepared therefrom. Background technique [0002] With the increasingly stringent environmental protection regulations, most areas in China currently implement the National IV diesel standard with a sulfur content of 50 μg / g, and some areas implement the National V diesel standard with a sulfur content of 15 μg / g, which requires straight-run diesel and secondary processing. Diesel oil such as catalytic cracking diesel oil, coking diesel oil, etc. must be deeply desulfurized. Among them, the hydrodesulfurization process is the main process for producing ultra-low sulfur diesel. [0003] The sulfides in diesel are mainly alkylbenzothiophenes and alkyldibenzothiophenes, and there are also a small amount of mercaptans, small molecular chain sulfides, cyclic sulfides and alkylthiophenes. During the hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J29/08B01J29/16
CPCB01J29/088B01J29/166B01J2229/186
Inventor 周亚松张玲玲魏强陈楠周文武刘亭亭丁思佳
Owner PETROCHINA CO LTD
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