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Synthesis gas washing system adapting to severe working conditions and working method thereof

A synthesis gas and working condition technology, applied in gas dust removal, petroleum industry, combustible gas purification, etc., can solve problems such as downcomer burn-through, quenching water pipeline wear, quenching water filter clogging, etc., to reduce solids, alleviate Clogging and wear problems, solids reduction effect

Pending Publication Date: 2019-12-20
空气化工产品(上海)气化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the strong turbulence of the black water at the bottom of the scrubber, some solids will inevitably be entrained in the black water removed from the chilling ring and the Venturi scrubber, which will cause blockage of the chilling water filter, serious wear and tear of the chilling water pipeline, valves and pumps, etc. , and even cause the downcomer to burn through due to wear and tear of the chilling ring; therefore, in view of the above problems, it is of great significance to provide a syngas scrubbing system and its working method that are suitable for harsh working conditions

Method used

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  • Synthesis gas washing system adapting to severe working conditions and working method thereof
  • Synthesis gas washing system adapting to severe working conditions and working method thereof
  • Synthesis gas washing system adapting to severe working conditions and working method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] see figure 1 As shown, a syngas scrubbing system adaptable to harsh working conditions of the present invention includes a gasifier 13, a black water treatment system 14, a first-stage Venturi scrubber 01, a cyclone separator 02, and a second-stage Venturi scrubber Device 03, scrubber 04 and water pump 05;

[0040] The water pump 05 adopts an independent chilled washing water pump; the water pump 05 is used to pressurize the process washing water, and the water pump 05 communicates with the second-stage Venturi scrubber 03 through the second washing water inlet pipe 6, and connects with the second-stage Venturi scrubber 03 through the first washing water connecting pipe 2 It communicates with the first-stage Venturi scrubber 01, and communicates with the gasifier 13 through the quenching water pipe 12 of the gasifier;

[0041] The first-stage Venturi scrubber 01 is used to initially wet the crude syngas from the gasifier 13. Device outlet pipe 3 communicates with cyclon...

Embodiment 2

[0055] like figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the water pump 05 adopts a water pump group composed of a chilling water pump 05A and a washing water pump 05B, and the working method flow is the same as that of Embodiment 1. The black water outlet pipe 5 of the cyclone separator is added The pressure device is connected to the gasifier 13;

[0056] One channel of the chilled water pump 05A is a chilled water pump specially connected to the gasifier 13 to ensure high stability of the chilled water flow; the other channel of the scrubbing water pump 05B is specially connected to the first-stage Venturi scrubber 01 and the second-stage Venturi scrubber 03 wash water pump.

[0057] In this embodiment, the black water outlet pipe 5 of the cyclone separator at the bottom of the cyclone separator 02 is discharged to the black water treatment system 14 for further treatment. Based on the consideration of optimal utilization of system w...

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Abstract

The invention discloses a synthesis gas washing system adapting to severe working conditions and a working method thereof, and relates to the technical field of synthesis gas washing. The system comprises a gasification furnace, a black water treatment system, a first-stage venturi scrubber, a cyclone separator, a second-stage venturi scrubber, a scrubbing tower and a water pump; the water pump communicates with the second-stage venturi scrubber through a second washing water inlet pipe, communicates with the first-stage venturi scrubber through a first washing water connecting pipe, and communicates with the gasification furnace through a gasification furnace chilling water pipe. Black water with high solid content and black water with low solid content are shunted; the solid content of black water entering the washing tower is obviously reduced; the problems of blockage and abrasion of a chilling water system in the starting, stopping and normal operation processes are effectively relieved, the reliability of the chilling water flow quantity and the stability of the liquid level of a chilling chamber are improved, the fault stopping probability possibly caused by the problems isreduced, and the first-stage wetting and cyclone separation equipment is low in engineering implementation difficulty and high in reliability.

Description

technical field [0001] The invention belongs to the technical field of syngas scrubbing, in particular to a syngas scrubbing system adaptable to severe working conditions and a working method of the syngas scrubbing system adaptable to harsh working conditions. Background technique [0002] So far, gasification is still the most effective way to use hydrocarbon fuels such as coal in a large-scale, efficient and clean manner, and it is also a leading technology for related chemical processes. The fuels used include generalized hydrocarbon fuels such as coal, petroleum coke, asphalt, biomass and even garbage. Entrained bed gasification technology is the mainstream technology in coal gasification technology due to its high production intensity and strong environmental protection. [0003] The entrained bed gasification reaction is that coal or other hydrocarbons are transported through slurry or pneumatic, and undergo partial oxidation reaction with oxygen in the gasifier to g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/02C10K1/10
CPCC10K1/101C10K1/026
Inventor 瞿海根
Owner 空气化工产品(上海)气化技术有限公司
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