Application Of Molecular Sieve Non Hydrogenation Technology In Aromatics Refining Process

The development of demand for < p > PX promoted the progress of reforming technology.

With the development of ultra low pressure reforming process, the aromatics production technology has made a revolutionary breakthrough, but at the same time, the arene content in aromatics has been increasing.

This part of olefin is harmful to the subsequent process of PX plant and needs to be removed.

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< p > reforming a href= "http://www.91se91.com/news/index_c.asp" > aromatics > /a > dealkene refining technology includes: (1) hydrogenation less than a href= "http://www.91se91.com/news/index_c.asp" > refining process < /a >: investment and operation cost is too high, oil loss is large, China's existing device is rarely used; < /p >

< p > (2) activated clay refining process: small investment and simple operation. More than 95% of China adopts adsorption refining process.

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< p > reforming aromatics non hydrofining technology is to remove olefins by using olefins and acid catalysts to produce olefins to produce high boiling compounds.

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< p > zeolite preparation instead of clay will be the inevitable trend of R & D of aromatics refining technology in the future.

TCDTO-1 refining agent adopts molecular sieve acid strength control technology and pore structure modulation technology, which can ensure alkylation and dealkylation while avoiding side reactions such as alkyl pfer, olefin polymerization, aromatic condensation, and so on, and form aromatics non hydrogenation refining technology with independent intellectual property rights.

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< p > TCDTO-1 < a href= "http://www.91se91.com/news/index_c.asp > > refining agent < /a > is mainly used in two types of chemical reforming and refining reforming.

From the perspective of its industrial application, TCDTO-1 refining agents bring great economic and social benefits to enterprises.

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< p > related links: < /p >

< p > the State Administration of quality supervision, inspection and Quarantine recently announced the results of the state supervision and inspection of bedding products in the first quarter of 2014, and 5 batches of products failed to meet the standards.

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< p > in the first quarter, the State Administration of quality supervision and quarantine inspected 120 batches of bedding products produced by 120 enterprises in 9 provinces (cities), including Beijing, Tianjin, Liaoning, Shanghai, Jiangsu, Zhejiang, Fujian, Hunan and Guangdong.

According to the requirements of GB 18401-2010, the basic technical safety specifications for national textiles, 9 items of bedding products such as fiber content, formaldehyde content, pH value, decomposable carcinogenic aromatic amine dye, acid perspiration fastness, alkali fastness to perspiration, color fastness to water, color fastness to dry rubbing and color fastness to wash were tested.

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< p > after inspection, there are 5 batches of products that do not meet the standard requirements, which involve fiber content, color fastness to rubbing, acid fastness to perspiration, and alkali fastness to perspiration.

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