A kind of technological method of producing chemical raw material in the largest quantity
A raw material and combined process technology, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problems of increasing the yield of ethylene and three rare earths, not maximizing the economy and benefits, and reducing the operating cycle of ethylene units, etc. problem, to achieve the effect of increasing the processing capacity, increasing the processing load, and improving the product quality
Active Publication Date: 2017-02-08
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
Although the above method can produce high quality, low BMCI value steam cracking ethylene raw material, but still contains a certain amount of aromatics in the raw material, did not maximize the yield of ethylene and three rare earths, and because of the presence of aromatics, to a certain extent It will also reduce the operating cycle of the ethylene plant, and does not maximize the economy and benefits
Method used
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Embodiment 1
[0037] use figure 1 In the process flow shown, chemical raw materials are produced by combining the extraction unit and the hydrogenation unit. The catalysts used in the examples are commercial catalysts FF-36 hydrotreating catalyst and FC-32 and FC-24 hydrocracking catalysts developed by Sinopec Fushun Petrochemical Research Institute. The main properties of the catalysts are listed in Table 1.
[0038] The properties of the raw oil are shown in Table 2, and the hydrocracking operating conditions are shown in Table 3.
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The present invention discloses a process method for maximally producing a chemical industry raw material. According to the method, a conventional wax oil raw material is saturated and then enters a furfural refining apparatus to treat, the separated heavy aromatic hydrocarbon component is continuously subjected to deep saturation ring-opening cracking, the separated non-aromatic component enters an aromatic hydrocarbon extracting apparatus, the product obtained after the heavy aromatic hydrocarbon cracking and the light aromatic hydrocarbon obtained after the aromatic hydrocarbon extracting are mixed and are continuously subjected to a saturation ring-opening cracking reaction, the reactant enters the aromatic hydrocarbon extracting apparatus, the separated light aromatic hydrocarbon is separated through a fractionation tower, the heavy component is adopted as the raw material for being mixed with the heavy aromatic hydrocarbon, the light component is externally thrown out of the apparatus as the base organic raw material, and the non-aromatic component is discharged out of the apparatus and is the high-quality ethylene preparation raw material through steam cracking. According to the method of the present invention, the catalyst grading technology is utilized to carry out the sectional treatment on the aromatic hydrocarbon component in the raw material and carry out the preferable processing on the conventional wax oil so as to obtain the high-quality ethylene preparation raw material through steam cracking..
Description
technical field [0001] The present invention relates to a combined process of hydrocracking and aromatics extraction, specifically a combined process of utilizing the organic combination of the two to produce the largest amount of paraffins with low BMCI values as raw materials for steam cracking to produce ethylene, with by-products Aromatic products are basic organic raw materials. Background technique [0002] Hydrocracking technology has the characteristics of strong adaptability to raw materials, great flexibility in production operations and product plans, and good product quality. It can directly convert various heavy and low-quality feedstocks into high-quality jet fuel, diesel, and lubricating oil base materials that are urgently needed by the market. As well as chemical naphtha and tail oil steam cracking raw materials for ethylene production, it has become one of the most important heavy oil deep processing processes in modern oil refining and petrochemical indu...
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IPC IPC(8): C10G67/00
CPCC10G67/00
Inventor 王仲义彭冲崔哲于淼潘德满黄新露吴子明
Owner CHINA PETROLEUM & CHEM CORP