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Gasifier injection system

A technology of gasifier and pressurized gas, which is applied in the direction of gasification process, gasification device details, chemical instruments and methods, etc.

Inactive Publication Date: 2011-10-12
EXXON RES & ENG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The net result is that this system leads to the need to properly operate "fluidizing" gas, with the corresponding disadvantages as described in previous systems

Method used

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Embodiment Construction

[0031] As noted in the Background section of this application, existing gasifier solid fuel feed systems in the art have focused on "fluidizing" the solids bed to improve the flow properties of the solid fuel to the gasification burner. While this essentially improves the flow properties of the solids by increasing the fuel system porosity above about 0.65 and thereby creating "fluidized solids", the resulting large amounts of contaminant fluidizing gas used in this process have very significant The drawbacks of process chemistry, energy consumption, and equipment size as mentioned above. Furthermore, as the size and efficiency of these gasifier units increases, systems with a greater number of individual burners are required to maintain the overall efficiency of the process. Therefore, in order to improve the overall process, an improved system for uniform solid hydrocarbon feed delivery is necessary. As used herein, the synonymous terms "solid hydrocarbon feed" or "solid hy...

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Abstract

The present invention relates to an improved gasifier injection system. In particular, the present invention provides an improved apparatus and operating scheme to improve the control flow of solid particulates in a multi-burner gasifier. The system also provides for integrated flow control and emergency shutoff in the case of abnormal operating conditions or unexpected backflow of the process burners. This improved design simplifies the mechanical systems required for large multi-burner gasifiers thus providing a more reliable and compact gasifier feed system. In preferred embodiments, the gasifier hydrocarbon feed is substantially in a solid particulate state and is preferably comprised of coal, petrochemical coke, and / or solid biomass.

Description

technical field [0001] The present invention relates to an improved gasifier feed and oxidant injection system. In particular, the present invention provides improved apparatus and operating schemes for controlling the flow of solids in a multi-burner gasifier. The system also provides integrated flow control and emergency shutdown for abnormal operating conditions or in case of unexpected process burner backflow. This improved design simplifies the mechanical systems required for large multi-burner gasifiers, resulting in a more reliable and compact gasifier feed system. In a preferred embodiment, the hydrocarbon feed to the gasifier is substantially solid particulate and preferably consists of coal, petrochemical coke and / or solid biomass. Background technique [0002] With the gradual increase in the application of oil supply and the gradual decrease in supply, the gasification technology of economical solid hydrocarbon sources, such as but not limited to coal, petroche...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G53/12B01J8/00C10J3/50
CPCC10J3/506B01J8/002B01J8/0035B01J8/062B01J2208/00752C10J3/723C10J2200/152C10J2300/0916C10J2300/093C10J2300/0933C10J2300/0936C10J2300/0943C10J2300/1693
Inventor M·F·雷特曼
Owner EXXON RES & ENG CO
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