High-temperature and high-pressure semi-coke cooling and depressurizing method

A technology of high temperature and high pressure, temperature reduction and pressure reduction, applied in coke ovens, coke cooling, petroleum industry and other directions, can solve the problems of long cooling time, high investment cost, low thermal conductivity of semi-coke, etc. Efficient effect

Inactive Publication Date: 2020-01-17
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the low thermal conductivity of semi-coke itself, about 0.58-0.81W / (m 2 K), using only static cooling method for semi-coke cooling, the cooling time is long, and at the same time, the gasification frame is too high, and the investment cost is high.

Method used

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Embodiment Construction

[0035] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0036] The invention provides a method for reducing temperature and pressure of high-temperature and high-pressure semi-coke. In the embodiment, the method for reducing temperature and pressure of high-temperature and high-pressure semi-coke uses high-temperature and high-pressure semi-coke processing equipment to perform cooling and pressure-reducing treatment on high-temperature and high-pressure semi-coke. Firstly, the high-temperature and high-pressure semi-coke processing equipment will be described in detail below.

[0037] Such as Figure 1 to Figure 2 As shown, the high-temperature and high-pressure semi-coke processing equipment in this embodiment is used to ...

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Abstract

The invention relates to a high-temperature and high-pressure semi-coke cooling and depressurizing method which comprises the following steps: I, filling a cooling gas into high-temperature and high-pressure semi-coke treatment equipment for a preset duration; II, after the cooling gas is stopped, inputting a high-temperature and high-pressure semi-coke material into the high-temperature and high-pressure semi-coke treatment equipment, and performing heat exchange on the semi-coke material with the cooling gas in the high-temperature and high-pressure semi-coke treatment equipment in the falling process; III, when the semi-coke material in the high-temperature and high-pressure semi-coke treatment equipment is accumulated to a preset height, stopping inputting the semi-coke material into the high-temperature and high-pressure semi-coke treatment equipment; and IV, releasing the pressure of the high-temperature and high-pressure semi-coke treatment equipment, so as to complete the operation of charging and releasing the pressure of the high-temperature and high-pressure semi-coke treatment equipment, and through the pressure release process, performing cooling and depressurizing treatment on the high-temperature and high-pressure semi-coke material for a second time. By adopting the cooling and depressurizing method, the high-temperature and high-pressure semi-coke material is subjected to effective and efficient cooling and depressurizing treatment, and the investment cost of treatment can be also greatly lowered.

Description

technical field [0001] The invention relates to the technical field of high-temperature and high-pressure semi-coke cooling, and more specifically, relates to a method for reducing temperature and pressure of high-temperature and high-pressure semi-coke. Background technique [0002] Coal cascade utilization is one of the effective ways to start from the chemical structure of coal, make full use of the aromatic and aliphatic functional group structures contained in coal itself, obtain high value-added oil products, improve process technical indicators, and realize efficient, reasonable and clean utilization of coal resources. one. Coal hydrogasification technology is one of the mainstream research and development directions for the existing coal cascade utilization. The hydrogasification reaction temperature is 700-950°C and the operating pressure is 4-10MPa. After the coal undergoes hydrogasification reaction, a large amount of high-temperature, high-pressure, low-sulfur, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/00
CPCC10B39/00
Inventor 方科学汪国庆周三马志超刘明马丽荣孙中卫
Owner ENN SCI & TECH DEV
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