Method and Device for Optimised Fluidised Bed Gasification

Inactive Publication Date: 2009-04-16
SPOT SPIRIT OF TECHNOLOGY AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0019]No other known method is capable of producing a high-quality synthesis gas at unrivalled low cost, as a result of comparatively low investment costs, with CO2 reduction, or of utilising it as energy and simultaneously processing it into fuel, after appropriate cooling and purification.
[0036]It is essential in this connection that the fine dust can be conveyed into the dense fluidised bed with the aid of the driving jet principle, this improving the required effect as a result of an increase in the retention time and intensive mixing of the dust with the hot bed material.

Problems solved by technology

No other known method is capable of producing a high-quality synthesis gas at unrivalled low cost, as a result of comparatively low investment costs, with CO2 reduction, or of utilising it as energy and simultaneously processing it into fuel, after appropriate cooling and purification.

Method used

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  • Method and Device for Optimised Fluidised Bed Gasification
  • Method and Device for Optimised Fluidised Bed Gasification
  • Method and Device for Optimised Fluidised Bed Gasification

Examples

Experimental program
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Effect test

Embodiment Construction

[0040]FIG. 1 shows a gasifier 11 with pulse heaters 12 arranged in the central region of the gasifier 11 in order to form a preferably stationary fluidised bed in this region. The number of pulse heaters can be varied. Both one and two or more are conceivable.

[0041]Steam is introduced into the gasifier as an oxidising and fluidising medium 13. Other fluidising media, such as synthesis gas or CO2, are also conceivable. Feed 14 is furthermore introduced in the region of the pulse heaters 12. This feed can be biomass and other substances, such as lignite or secondary raw materials (such as municipal solid waste, sewage sludge, waste from the food industry, etc.). The biomass is gasified in the fluidised bed consisting of inner bed material at a temperature in the region of approximately 800° C.

[0042]The pulse heaters are operated at Q(pt). Q(pt) means heat flow and refers to the reaction enthalpy (i.e. the calorific value) of the fuel gas used. In addition to the synthesis gas produced...

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Abstract

Method and device for the gasification of feed to form synthesis gas, with a gasifier comprising at least one pulse heater, and with a fluidised bed in the gasifier, in which the fluidised bed is kept in motion in a controlled manner by means of a feed nozzle introducing steam and / or synthesis gas and / or fine dust into the reactor such that the reaction zone is increased.

Description

[0001]This application in a continuation of PCT / EP2007 / 052259 filed Mar. 9, 2007, which claims priority to DE 10 2006 019 999.5 filed Apr. 26, 2006 and DE 10 2006 022 265.2 filed May 11, 2006, all of which are incorporated by reference.FIELD OF THE INVENTION[0002]The development of thermal gasification methods has produced essentially three different types of gasifier, namely entrained bed gasifiers, fixed bed gasifiers and fluidised bed gasifiers.[0003]Primarily fixed bed gasifiers and fluidised bed gasifiers have been developed further for commercial gasification.[0004]Of the many different technical approaches in the field of fixed bed gasification, the Carbo V method will be described by way of example here.[0005]Relevant literature for fluidised bed gasification, which forms part of this application, is as follows: “High-Temperature Winkler Gasification of Municipal Solid Waste”; Wolfgang Adlhoch, Rheinbraun A G, Hisaaki Sumitomo Heavy Industries, Ltd., Joachim Wolff, Karsten R...

Claims

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Application Information

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IPC IPC(8): C10J3/48C10J3/46
CPCC10J3/463C10J3/482C10J3/56C10J2300/0916C10J2300/1823C10J2300/0983C10J2300/1261C10J2300/1807C10J2300/0956C10J3/503C10J2200/152C10J2300/0936C10J2300/0973Y02P20/145
InventorNEUMANN, OLIVER
OwnerSPOT SPIRIT OF TECHNOLOGY AG