Method for producing synthetic oil products and chemical products

A technology for chemicals and oils, applied in the field of chemical synthesis, can solve environmental problems and other problems, and achieve the effects of wide application range, low impurity content, and low heavy metal content

Inactive Publication Date: 2014-01-15
SYNEFUELS CHINA +1
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for producing synthetic oils and chemicals, which can solve the environmental problems caused by the discharge of coke oven tail gas, turn waste into treasure, and at the same time enable enterprises to obtain considerable economic benefits, which is a great contribution to the development of coke oven tail gas. Rational use opens up new ideas

Method used

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  • Method for producing synthetic oil products and chemical products
  • Method for producing synthetic oil products and chemical products

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Embodiment 1

[0033] The schematic diagram of the process of synthesizing oil products and chemicals in this embodiment is as follows figure 1 shown.

[0034] The composition of the coke oven tail gas raw material gas used in the present invention is as follows:

[0035] Table 1 Average composition of purified coke oven tail gas (vol%)

[0036] name

H 2

CH 4

N 2

CO

CO 2

C n h m

O 2

components

58.0

25.0

4.0

7.0

2.7

2.55

0.6

[0037] Table 2 Purified coke oven tail gas impurity content

[0038]

[0039] Among them: low calorific value: 16891.38kJ / Nm 3 (4041kcal / Nm 3 ); Temperature: 40°C; Pressure: 2.8MPa(G).

[0040] (1) The coke oven tail gas from the gas tank is compressed to about 4.1MPa(G), heated to 250°C by medium-pressure steam in the preheater, mixed with medium-pressure superheated steam, and then sent to the reformer burner; Oxygen of about 4.5MPa(G) from outside the w...

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Abstract

The invention discloses a method for producing synthetic oil products and chemical products. The method comprises the following steps: (1) performing compression and preheating on raw material gas, and then performing non-catalytic partial oxidation on the compressed and preheated raw material gas and oxygen in a converter to obtain reformed gas of the raw material gas, and performing cooling and washing treatment on the reformed gas of the raw material gas, and then entering the reformed gas of the raw material gas into an acid gas removal unit; (2) performing gasification reaction on raw material coal and the oxygen in a coal gasification furnace to perform gasification reaction to obtain gasified crude synthetic gas, then performing cooling and washing treatment, and then entering the gasified crude synthetic gas into the acid gas removal unit; (3) mixing the reformed gas of the raw material gas with the gasified crude synthetic gas in the acid gas removal unit, removing acid gas so as to obtain the synthetic gas, and sending the synthetic gas into an oil product synthesis unit; and (4) performing slurry bed Fischer-Tropsch synthesis reaction on the synthetic gas in the oil product synthesis unit to obtain heavy oil, light oil, crude wax, synthetic water and synthetic tail gas. The method provided by the invention is in line with the requirements of national industrial policy and environmental protection policy, can play a positive role in saving energy, reducing emission and protecting an environment and ensures that an enterprise can obtain substantial economic benefits, so a new way for reasonable utilization of tail gas of a coke oven is opened.

Description

technical field [0001] The invention relates to a method for producing synthetic oil products and chemicals, belonging to the technical field of chemical synthesis. Background technique [0002] my country is a big country of coke production. In 2011, the national coke output was 420 million tons. It is estimated that the annual output of coke in China is expected to reach 450 million tons in 2012. The coke oven tail gas emitted by each ton of coke is about 400m 3 , In addition to self-use, domestic and commercial fuels, the coke oven exhaust gas released every year exceeds 20 billion cubic meters. [0003] Coke oven exhaust gas contains a large amount of hydrocarbons, and the composition is relatively complex, among which CH 4 , CO, C n h m The content of other components is higher. At present, with the widespread use of natural gas as an urban gas source in China, coke oven exhaust gas is no longer the main source of urban gas supply. Domestic large-scale coking plants...

Claims

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Application Information

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IPC IPC(8): C10G2/00C10G67/00C10J3/00C01B3/02C01B3/24C01B3/50C01B17/04
CPCY02P20/10Y02P20/52
Inventor 李永旺刘光启武秀丽白亮余晓忠
Owner SYNEFUELS CHINA
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