Method for desulphurizing methyl tertiary butyl ether with high sulphur content

A technology with high sulfur content of methyl tert-butyl ether, applied in the fields of ether preparation, ether separation/purification, organic chemistry, etc., can solve problems such as MTBE production difficulties, and achieve the effects of low cost, excellent product quality and advanced technology

Inactive Publication Date: 2010-02-10
SHANDONG YUHUANG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The sulfur content of domestic MTBE products is relatively high, which is related to upstream raw ma...

Method used

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  • Method for desulphurizing methyl tertiary butyl ether with high sulphur content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] Example: Pilot test

[0027] (1) Pilot scale

[0028] MTBE processing capacity is 30,000 tons / year

[0029] (2) Brief description of the process flow

[0030] The MTBE raw materials in the storage area are pumped to the buffer tank of the device by the feeding pump, and then pumped out into the distillation column, and heated to 90℃~120℃ through the reboiler, the temperature at the top of the tower is 69℃~75℃, and the gas phase at the top of the column passes through the cooler After cooling, it enters the reflux tank. The materials in the reflux tank are pumped out by the reflux pump, part of which is refluxed at the top of the tower, and the other part of the qualified products enters the finished product tank in the storage area. The bottom of the tower contains very little MTBE sulfur products. Zone S storage tank (cooled to below 40℃ after cooler), steam power 1.0MPa steam to provide heat, this MTBE product is colorless and transparent, which is better than the n...

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Abstract

The invention relates to a method for desulphurizing MTBE with high sulphur content, belonging to the field of the refining of methyl tertiary butyl ether (MTBE). The methyl tertiary butyl ether (MTBE) with high sulphur content is placed into a distillation tower and heated by a reboiler, the temperature of a tower kettle is kept between 90 DEG C and 120 DEG C, the pressure of the tower kettle iskept at 0.08+/-0.02 MPa, the temperature of a tower top is kept between 69 DEG C and 75 DEG C, and the pressure of the tower top is kept at 0.06+/-0.02 MPa so that a finished product is distilled outof the tower top, a reflux ratio is kept from 1 to 10, and a sulfur product is recycled from a tower bottom. The invention has the advantages of simple process, advanced technology, easy and convenient control operation, little investment, low cost and no three-waste pollution.

Description

(1) Technical field [0001] The invention relates to the refining of methyl tertiary butyl ether (MTBE), in particular to a method for desulfurization of high-sulfur MTBE. (2) Background technology [0002] In recent years, with the adjustment of energy structure, my country's fine chemical industry has developed by leaps and bounds, and large-scale desulfurization units have been built one after another. Because of the high boiling point of sulfur in MTBE products, it is not easy to volatilize, has high toxicity, and corrodes equipment seriously, making it difficult to recover. The exhaust gas is discharged, causing serious environmental pollution and energy waste. [0003] At the same time, under the influence of high global oil prices, the price of major basic organic chemical products has been rising, especially the price of gasoline remains high. Due to the high octane number and low vapor pressure of MTBE products, it can increase the price of gasoline. It has been widel...

Claims

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Application Information

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IPC IPC(8): C07C43/04C07C41/42
Inventor 王胜伟戴俊堂王建伟陈合生
Owner SHANDONG YUHUANG CHEM CO LTD
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