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Combination device for adsorption desulfurization and biological reactivation adsorption agent, and operating method thereof

An adsorption desulfurization and adsorbent technology, applied in the biological field, can solve the problems of difficult separation of adsorbents and desulfurization microorganisms, adsorbent consumption, large operating costs, etc.

Inactive Publication Date: 2008-02-27
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to separate the adsorbent from the desulfurization microorganisms, and the removal and loading of the adsorbent will consume a lot of operating costs.

Method used

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  • Combination device for adsorption desulfurization and biological reactivation adsorption agent, and operating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Use Nocardia parvum R-9 to regenerate the Cu(I) / Y adsorbent, the Cu(I) / Y adsorbent adopts the prior art, with NaY molecular sieve as the adsorbent carrier, Cu(I) / Y 2+ Ion exchange for 48 hours, dry at 100°C for 24 hours, and then use H 2 , N 2 Under the protection of mixed gas (volume ratio 10:90), it is obtained by reduction at 220°C.

[0035] See Figure 1. The tops of the two adsorptive desulfurization fixed-bed reactors 1 are respectively provided with raw material oil inlets, the upper part is provided with regeneration circulating fluid outlets, and the bottom is provided with regeneration circulating fluid inlets and product oil outlets;

[0036] The tops of the three biological desulfurization reactors 4 with stirring devices are respectively provided with the inlet of the regenerated circulating fluid, the outlet of the regenerated circulating fluid, the air inlet and the discharge port, and a biological desulfurization reaction device is installed at the disc...

Embodiment 2

[0046] Using the device and operation method of Example 1, Rhodococcus erythropolis LSSE8-1 was used to regenerate the loaded NiO / USY adsorbent.

[0047] The loaded NiO / USY adsorbent that has adsorbed sulfur is desorbed and regenerated using the specific biological desulfurization catalyst Rhodococcus erythroflates LSSE8-1. The concentration of microbial cells in the water phase is 25g / L, and the water phase is pH=6.0~ 7.0 phosphate buffer solution, add gasoline as the oil phase, the volume ratio of the oil phase to the water phase is 0.3, fully stir and emulsify in the desulfurization reactor, and the ratio of the loaded NiO / USY adsorbent that has adsorbed sulfur to the water phase is 5.0g / L, passed into a fixed bed saturated with adsorbed sulfides. After drying at 120°C and calcining at 500°C, the regenerated desulfurization adsorbent NiO / USY was obtained.

[0048] The supported NiO / USY adsorbent is obtained by using USY molecular sieve as the adsorbent carrier, impregnati...

Embodiment 3

[0051] Using the device and operation method of Example 1, Pseudomonas delbrueckii R-8 was used to regenerate the loaded ZnO-NiO / Y adsorbent.

[0052] The loaded ZnO-NiO / Y adsorbent that has adsorbed sulfur is desorbed and regenerated using the specific biological desulfurization catalyst Pseudomonas delbrueckii R-8. The concentration of microbial cells in the water phase is 35g / L, and the water phase is Physiological saline, add dimethyl sulfoxide as the oil phase, the volume ratio of the oil phase to the water phase is 0.3, fully stir and emulsify in the desulfurization reactor, and the ratio of the loaded ZnO-NiO / Y adsorbent that has adsorbed sulfur to the water phase is 5.0 g / L, passed into the fixed bed saturated with adsorbed sulfide. After drying at 100°C and calcining at 450°C, the regenerated desulfurization adsorbent ZnO-NiO / Y is obtained.

[0053] The supported ZnO-NiO / Y adsorbent is obtained by using USY molecular sieve as the adsorbent carrier, impregnating NiO a...

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Abstract

The invention discloses a uniset to regenerate absorption with adsorbing desulfuration and microbial utilization method and operational method in biological technique domain, which is characterized by the following: communicating two adsorbing desulfuration fixed bed reactor and more than one biological sulfur removal reactor with agitating device through line; assembling valve on the line; assembling transmitting pump on the line; stripping sulfur compound with the sorbent in the adsorbing desulfuration fixed bed reactor; mixing sulfur removal microbial cell, water phase and little oil phase in the biological sulfur removal reactor evenly; leading oil-water microemulsion into the adsorbing desulfuration fixed bed; desorbing sulfur compound and aromatic hydrocarbons; transferring into the biological sulfur removal reactor; stripping sulfur with sulfur removal microbial cell; leading air into adsorbing desulfuration fixed bed reactor; drying the adsorbent; baking; getting regenerated adsorbent.

Description

field of invention [0001] The invention belongs to the field of biotechnology, and particularly relates to a combined device for adsorbing desulfurization and using microorganisms to regenerate an adsorbent and an operating method thereof. Background technique [0002] The adsorbent for adsorption and desulfurization can absorb and remove sulfur compounds in hydrotreated diesel and gasoline under normal temperature and pressure, such as dibenzothiophene and tetrahexadimethyldibenzothiophene, etc., to achieve the purpose of ultra-deep desulfurization . [0003] Adsorbents for adsorption and desulfurization can be metal oxides (USP6,184,176, 2001-2-6; USP6,338,794, 2002-2-15), molecular sieves (USP5,935,422, 1999-8-10; USP5454933, 1995-10- 3;), activated carbon (USP6,565,741, 2003-5-20) and metal alloys (6,558,533, 2003-5-6). Loading alkali metals or alkaline earth metals on these adsorbents can improve the sulfide adsorption selectivity of the adsorbent (USP5,935,422, 1999-...

Claims

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Application Information

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IPC IPC(8): C01G25/00B01D15/08B01J20/34
Inventor 刘会洲李望良邢建民李玉光熊小超
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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