Process for producing chemical industry products and fuel oil from coal tar

A technology of coal tar and chemical products, which is applied in the field of coal tar production of chemical products and fuel oil, and can solve problems such as no industrialization practice

Inactive Publication Date: 2005-03-23
山西东辉能源集团有限公司 +11
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the hydrogenation of the whole fraction of coal tar, the suspension bed hydrogenation process is required, and there is no industrial practice in my country at present

Method used

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  • Process for producing chemical industry products and fuel oil from coal tar
  • Process for producing chemical industry products and fuel oil from coal tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] 1. The raw coal tar is distilled to separate light coal tar less than 360°C and tar pitch greater than 360°C. At the same time, two fractions of 170-210°C and 210-230°C are cut from the light coal tar for production respectively. Industrial phenol and industrial naphthalene;

[0035] II. Mix the remaining fractions from the production of phenol and naphthalene, other light tars and light tars produced by delayed coking as raw materials for hydrorefining, and the hydrorefining catalysts are molybdenum, nickel, arborite or tungsten-molybdenum-nickel type, the carrier is composed of alumina or alumina and titania, the hydrogenation reactor is a typical trickle bed reactor, the catalyst adopts staged loading technology, the operating pressure of the reactor is 8.0Mpa, the reaction temperature is 350°C, and the volume space velocity is 0.5h -1 , the volume ratio of hydrogen to oil is 800-1500, and the above raw materials are hydrotreated to obtain solvent oil, diesel oil or...

Embodiment approach 2

[0057] I. The raw coal tar is distilled to separate light coal tar less than 360°C and tar pitch greater than 360°C. At the same time, two fractions at 210°C and 230°C are cut from the light coal tar to produce industrial phenol and industrial phenol respectively. Naphthalene;

[0058] II. Mix the remaining fractions from the production of phenol and naphthalene, other light tars and light tars produced by delayed coking as raw materials for hydrorefining, and the hydrorefining catalysts are molybdenum, nickel, arborite or tungsten-molybdenum-nickel type, the carrier is composed of alumina or alumina and titania, the hydrogenation reactor is a typical trickle bed reactor, the catalyst adopts staged loading technology, the operating pressure of the reactor is 12Mpa, the reaction temperature is 380°C, and the volume space velocity is 1.2 h -1 , the volume ratio of hydrogen to oil is 1500, and the above raw materials are hydrorefined to obtain solvent oil, diesel oil or light fu...

Embodiment approach 3

[0084] 1. The raw coal tar is distilled to separate light coal tar less than 360°C and tar pitch greater than 360°C. At the same time, two fractions of 170-210°C and 210-230°C are cut from the light coal tar for production respectively. Industrial phenol and industrial naphthalene;

[0085] II. Mix the remaining fractions from the production of phenol and naphthalene, other light tars and light tars produced by delayed coking as raw materials for hydrorefining, and the hydrorefining catalysts are molybdenum, nickel, arborite or tungsten-molybdenum-nickel Type, the carrier is composed of alumina or alumina and titania, the hydrogenation reactor is a typical trickle bed reactor, the catalyst adopts staged loading technology, the operating pressure of the reactor is 10Mpa, the reaction temperature is 360°C, and the volume space velocity is 0.9 h -1 , the volume ratio of hydrogen to oil is 1000, and the above raw materials are hydrorefined to obtain solvent oil, diesel oil or lig...

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Abstract

The invention is a method of producing chemical products and fuel oil by coal tar, relating to a method of producing chemical products and fuel oil by coal car, including vehicle fuel oil. And its characteristic: separating the coal tar into light and heavy fractions, where the light fraction includes light coal tar and tar pitch. The light fraction is used to produce light products by hydrofining or modifying. The processing of the tar pitch combines with coke furnace or delay coking, thus not only producing more chemical products such as phenol, naphthalene and gasoline, diesel oil / light fuel, etc, but also improving the coke quality of the coke furnace or directly producing low-ash content coke. Simultaneously, it adds an inhibitor to inhibit or slow down the coking in the furnace pipe or reactor, thus assuring long-term operation of the device.

Description

1. Technical field [0001] The invention discloses a method for producing chemical products and fuel oil from coal tar, belonging to the field of processing and utilization of coal tar, and relates to a method for producing chemical products and fuel oil from coal tar, including vehicle fuel oil. 2. Technical background [0002] In the past, the processing of coal tar was mainly concentrated in the production of chemical products, such as distilling it into light oil, phenol oil, naphthalene oil, wash oil, anthracene oil and several narrow fractions and tar pitch. Then separate crude chemicals or fine chemicals from different narrow fractions, and there are more than 100 industrialized varieties. With the depletion of oil resources and the increase in demand for diesel oil, various types of fuel oils are produced from coal tar, especially It is diesel that has received great attention again. From the present point of view, the utilization of heavy bitumen, which accounts for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C1/04C10G69/00
Inventor 张治和谢克昌王洋李大尚马家骏白玉祥
Owner 山西东辉能源集团有限公司
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