Integrated complete system and process for coal pyrolysis and upgrading

A complete system, coal pyrolysis technology, applied in the field of coal pyrolysis and quality improvement integrated complete system, can solve the problems of heavy dust removal workload of oil and gas products, difficult sealing of high-temperature solid materials, low process reliability, etc., to improve process reliability High reliability, reduced equipment investment, simple and reliable operation

Active Publication Date: 2015-09-23
SHAANXI COAL & CHEM IND GRP SHENMU TIANYUAN CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned process flow, special connection devices need to be installed between the rotary drying furnace and the rotary carbonization reaction furnace, between the rotary carbonization reaction furnace and the rotary cooling furnace, and the three sets of furnace systems need to be strictly sealed, but for high temperature The sealing of solid materials is always a t

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  • Integrated complete system and process for coal pyrolysis and upgrading

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Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a complete coal pyrolysis and upgrading integrated system, which is sequentially connected with a drying pyrolysis unit, an upgraded coal cooling unit, and a humidification and discharge unit along the process route.

[0038] The dry pyrolysis unit includes a horizontally arranged rotary cylinder 5 and an outer jacket 6 sleeved on the outside of the side wall of the rotary cylinder 5, and a smoke is formed between the rotary cylinder 5 and the outer jacket 6. Air channel; the front end of the rotary cylinder 5 is provided with a feed port, and the rear end of the rotary cylinder 5 is provided with a discharge port.

[0039] The rotary cylinder 5 along the direction of the process route includes a drying section 7, a reaction section 14 and a heat preservation section 17 in sequence. In this embodiment, along the central axis of the rotary cylinder 5, the drying section 7, the reaction section 14 And the length of the heat preservation section 17...

Embodiment 2

[0054] This embodiment provides an integrated system for coal pyrolysis and upgrading, its structure is as follows figure 1 As shown, a dry pyrolysis unit, an upgraded coal cooling unit, and a humidification and discharge unit are sequentially connected along the process route.

[0055] The dry pyrolysis unit includes a horizontally arranged rotary cylinder 5 and an outer jacket 6 sleeved on the outside of the rotary cylinder 5, and a flue gas channel is formed between the rotary cylinder 5 and the outer jacket 6 ; The front end of the rotary cylinder 5 is provided with a feed port, and the rear end of the rotary cylinder 5 is provided with a discharge port. As a preferred embodiment, in this embodiment, a feeder 3 is provided in communication with the feed port of the rotary cylinder 5, and the feeder 3 is a chute; There is an ash discharge box 2, the bottom of the ash discharge box 2 is provided with an ash discharge port 34, and the side wall of the ash discharge box 2 is ...

Embodiment 3

[0072] This embodiment provides a complete coal pyrolysis and upgrading integrated system, which is sequentially connected with a drying pyrolysis unit, an upgraded coal cooling unit, and a humidification and discharge unit along the process route.

[0073] The dry pyrolysis unit includes a horizontally arranged rotary cylinder 5 and an outer jacket 6 sleeved on the outside of the side wall of the rotary cylinder 5. Between the rotary cylinder 5 and the outer jacket 6 is a Smoke channel; the front end of the rotary cylinder 5 is provided with a material inlet, and the rear end of the rotary cylinder 5 is provided with a discharge port. As a preferred embodiment, in this embodiment, a feeder 3 is provided in communication with the feed port of the rotary cylinder 5, and the feeder 3 is a screw feeder; It is connected with an ash discharge box 2, the bottom of the ash discharge box 2 is provided with an ash discharge port 34, and the side wall of the ash discharge box 2 is provi...

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Abstract

The invention relates to an integrated complete system and process for coal pyrolysis and upgrading. A drying pyrolysis unit, an upgraded coal cooling unit and a humidifying discharge unit are sequentially arranged along a process route in a connecting manner; by arranging the drying pyrolysis unit, coal drying and coal pyrolysis reaction are completed in the same rotary cylinder, so that equipment investment is effectively reduced and the process reliability is improved; by arranging the upgraded coal cooling unit, cold air is adopted for indirect cooling of materials in material distribution tube nests, the equipment is simple, the safety is high, yields of waste water and waste gas are low, and heat is recycled from hot air obtained after heat exchange; by arranging the humidifying discharge unit, a sprayer is adopted to spray water on the upgraded coal for humidifying in the process of the conveying the upgraded coal by a screw conveyer, so that the operation is simple and reliable, the water spraying amount can be adjusted according to the process demands, the product quality is good and the process is environment-friendly.

Description

technical field [0001] The invention relates to a coal pyrolysis and upgrading integrated system and process, belonging to the technical field of coal pyrolysis and upgrading. Background technique [0002] my country is a country rich in coal resources but relatively scarce in oil and natural gas resources. In recent years, with the deterioration of the atmospheric environment in northern my country, in order to reduce the impact of direct coal combustion on the environment and improve the utilization of coal resources, domestic and foreign More and more institutions and scholars have begun to study coal quality utilization technology, which is a coal utilization method in which raw coal is subjected to medium and low temperature pyrolysis to obtain high-value gas, coal tar and upgraded coal. [0003] At present, the coal pyrolysis upgrading process adopted in China is mostly implemented by connecting three independent systems in series, that is, the drying furnace, carboniza...

Claims

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Application Information

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IPC IPC(8): C10B57/10C10B53/04C10B57/00C10B47/30C10B39/02
Inventor 李万善王守峰山秀丽常景泉贺鑫平刘新何战柱吴法明谢文王淑岩
Owner SHAANXI COAL & CHEM IND GRP SHENMU TIANYUAN CHEM IND
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