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Oil product desulfurizing agent and desulfurizing method thereof

A desulfurizing agent and oil technology, which is applied in chemical instruments and methods, processing hydrocarbon oil, refining hydrocarbon oil, etc., can solve the problems of harsh reaction conditions, low desulfurization rate, large investment, etc., and achieves easy operation, high desulfurization efficiency, Low consumption effect

Inactive Publication Date: 2016-07-20
SHANDONG CHENGTAI CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some shortcomings in the above technologies, such as large investment, high cost, harsh reaction conditions, low desulfurization rate, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A desulfurization method using a composite desulfurizer, comprising the following steps:

[0037] (1) Molecular sieve, activated carbon, activated coke, natural zeolite, kaolin, and bentonite are prepared according to the metering ratio to make a desulfurization adsorbent and place it in a fixed-bed reactor;

[0038] (2) Heat the raw oil to 120°C, enter the fixed bed reactor and contact the desulfurization adsorbent under the conditions of volume space velocity 2h-1 and operating pressure 2MPa, the oil after adsorption and desulfurization flows out of the reactor, and the desulfurization rate reaches More than 98%;

[0039] (3) After the desulfurization adsorbent is saturated, it stops entering the raw oil, and high-purity benzene is introduced into the bed of the desulfurization adsorbent, and the desulfurization adsorbent is desorbed. The desulfurized adsorbent can continue to absorb the benzene in the raw oil Sulfides are then extracted with organic solvents through...

Embodiment 2

[0041] A desulfurization method using a composite desulfurizer, comprising the following steps:

[0042] (1) Molecular sieve, activated carbon, activated coke, natural zeolite, kaolin, and bentonite are prepared according to the metering ratio to make a desulfurization adsorbent and place it in a fixed-bed reactor;

[0043] (2) Heat the raw oil to 100°C, enter the fixed bed reactor under the conditions of volume space velocity 3h-1 and operating pressure 1MPa to contact the desulfurization adsorbent, the oil after adsorption desulfurization flows out of the reactor, and the desulfurization rate reaches More than 97.5%;

[0044] (3) After the desulfurization adsorbent is saturated, it stops entering the raw oil, and high-purity toluene is introduced into the bed of the desulfurization adsorbent to perform desorption treatment on the desulfurization adsorbent. The desulfurized adsorbent can continue to absorb the Sulfides are then extracted with organic solvents through extract...

Embodiment 3

[0046] A desulfurization method using a composite desulfurizer, comprising the following steps:

[0047] (1) Molecular sieve, activated carbon, activated coke, natural zeolite, kaolin, and bentonite are prepared according to the metering ratio to make a desulfurization adsorbent and place it in a fixed-bed reactor;

[0048] (2) Heat the raw oil to 80°C, enter the fixed bed reactor and contact with the desulfurization adsorbent under the conditions of volume space velocity 1h-1 and operating pressure 3MPa, the oil after adsorption and desulfurization flows out of the reactor, and the desulfurization rate reaches More than 97.8%;

[0049](3) After the desulfurization adsorbent is saturated, it stops entering the raw oil, and the 1:1 solution of benzene and toluene is passed into the desulfurization adsorbent bed, and the desulfurization adsorbent is desorbed, and the desulfurized adsorbent can continue to adsorb The sulfides in raw oil are then extracted with organic solvents t...

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PUM

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Abstract

The invention relates to the field of crude oil processing, in particular to an oil product desulfurizing agent and a desulfurizing method thereof. Adsorption substances with high adsorption capability, such as molecular sieves, active carbon, active coke, natural zeolite, kaolin and bentonite are mixed according to a certain proportion to form a composite adsorption agent; sulfur-containing substances in oil are adsorbed and cleared under certain reaction conditions. The oil product desulfurizing agent has the beneficial effects that the consumption of the desulfurizing agent is small; the repeated utilization can be realized; the desulfurizing agent can be easily prepared; the price is low; raw materials can be favorably saved; the operation cost is reduced; a desulfurizing product can be recovered, and can be cyclically used after being treated; the technology is verified; the process is very simple; the operation is easy; a removed sulfide can be utilized; the secondary pollution problem does not exist; the desulfurizing efficiency of the composite adsorption desulfurizing agent is high; various sulfur-containing substances in the oil can be removed.

Description

technical field [0001] The invention relates to the field of crude oil processing, in particular to an oil product desulfurizer and a desulfurization method thereof. Background technique [0002] During the past 30 years, clean oil production has become an important research topic worldwide. The SO2 produced by the combustion of organic sulfides in oil will not only form acid rain and cause environmental pollution, but may also poison the precious metal catalyst of the three-way catalytic converter of the automobile; in addition, SO2 will also corrode the engine and endanger human health. With the increasing awareness of environmental protection, countries around the world have put forward more and more stringent requirements on fuel oil standards, especially sulfur content. Ultra-low sulfur content is the general trend of the development of clean fuel oil in the world. In addition, the rapid development of fuel cells calls for the production of "sulfur-free" fuel oil, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20C10G25/05
CPCB01J20/20B01J20/12B01J20/16B01J20/165C10G25/05C10G2300/202
Inventor 吴明明李伟王纪伟
Owner SHANDONG CHENGTAI CHEM IND
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