Method and device for producing hydrogen through blending and gasifying of sludge and biomass

A biomass and blending technology, applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., can solve the problems of food safety risks, poor catalytic cracking effect, negative effects, etc. The effect of reducing catalyst carbon deposition and efficient utilization of quality

Active Publication Date: 2014-08-13
深圳市远卓科技有限公司
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Problems solved by technology

[0002] The following problems exist in the disposal and resource utilization of sludge at home and abroad: (1) There are potential safety hazards in landfills, which affect the operation of landfills; (2) There are food safety risks in sludge fertilizer making, and it is difficult to promote; (3) Sludge The water content is too high, the conventional direct c

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  • Method and device for producing hydrogen through blending and gasifying of sludge and biomass
  • Method and device for producing hydrogen through blending and gasifying of sludge and biomass

Examples

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Example Embodiment

[0023] Example 1

[0024] Such as figure 1 As shown, the device for hydrogen production using sludge and biomass blended gasification according to the present invention is an externally heated sludge and biomass blended gasification-tar cracking-catalytic reforming ternary combined hydrogen production device The device includes a gasification furnace, a high-temperature cracking furnace and a catalytic reforming furnace, which respectively perform sludge and biomass gasification, tar high-temperature cracking and catalytic reforming.

[0025] The gasification furnace 1 includes a gasification chamber 2 and an external heating chamber 3. The top of the gasification chamber 2 is provided with a blended particle feeder 4, and the bottom of the gasification chamber 2 is provided with a gasification coke gas outlet 5 and a gasification ash outlet 6, and a gasification chamber 2 Spiral guide vanes 7 are provided inside; the bottom of the outer heating chamber 3 is provided with a high-te...

Example Embodiment

[0037] Example 2

[0038] The method for producing hydrogen by gasification of sludge and biomass in this embodiment is as follows:

[0039] (1) Dehydrate the municipal sludge. After dehydration, it does not need to be dried. The crushed organic waste particles are blended into particles for gasification; the particle mixing ratio is that the dehydrated municipal sludge and organic waste particles are Water content of the blend: the ratio of carbon content=1.2 is mixed uniformly, and gasification is carried out at 900°C; the particle diameter is between 4-10mm;

[0040] (2) Before catalytic reforming, the tar oil and gas produced by blending gasification will first enter the high-temperature cracking furnace for thermal cracking. After being cracked at 1000°C for 20 seconds, most of the tar will be fully decomposed at this stage;

[0041] (3) The undecomposed tar gas and water vapor in the high-temperature cracking stage enter the catalytic furnace for catalytic decomposition. Using o...

Example Embodiment

[0044] Example 3

[0045] The method for producing hydrogen by gasification of sludge and biomass in this embodiment is as follows:

[0046] (1) Dehydrate the municipal sludge. After dehydration, it does not need to be dried and blended with plastic particles to make pellets for gasification; the particle mixing ratio is that the dehydrated municipal sludge and plastic pellets are mixed according to the water content of the blend : The ratio of carbon content = 1.5 is mixed uniformly, and gasification is carried out at 950°C; the particle diameter is between 4-10mm;

[0047] (2) Before catalytic reforming, the tar oil and gas produced by blending gasification will first enter the high-temperature cracking furnace for thermal cracking. After cracking at 1100°C for 10 seconds, most of the tar will be fully decomposed at this stage;

[0048] (3) The undecomposed tar gas and water vapor in the high-temperature cracking stage enter the catalytic furnace for catalytic decomposition, using s...

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Abstract

The invention provides a method and a device for producing hydrogen through blending and gasifying of sludge and biomass. The device comprises a gasification furnace, a cracking furnace and a catalytic reforming furnace. Highly humid sludge and biomass are firstly blended by the device so as to prepare into particles for gasifying, then thermal cracking is carried out on tar gas and vapor produced by gasification in the high-temperature cracking furnace, most heavy tar is converted into light tar, and the tar gas and vapor which are not cracked completely enter the catalytic reforming furnace for further catalytic reforming. According to the invention, municipal sludge, municipal organic household garbage, forestry and agricultural waste and plastic are blended and gasified to produce hydrogen. Low-cost and renewable biomass or gasified fuel gas thereof is used as a heat source for gasification of the sludge and splitting and catalytic reforming of the tar gas, so that the economic value of the biomass energy and sludge resource can be fully used; moisture in the sludge is heated and evaporated in gasification, and the generated vapor is taken as a gasification agent and hydrogen source for gasification and catalytic reforming, so that organic matters in the sludge are recycled and are converted into high-grade and high-value hydrogen energy.

Description

technical field [0001] The invention relates to the technical field of gasification hydrogen production, in particular to a method and device for blending sludge and biomass gasification hydrogen production. Background technique [0002] The following problems exist in the disposal and resource utilization of sludge at home and abroad: (1) There are potential safety hazards in landfills, which affect the operation of landfills; (2) There are food safety risks in sludge fertilizer making, and it is difficult to promote; (3) Sludge If the water content is too high, conventional direct combustion utilization will not be worth the energy gain. It can be seen that the current domestic and foreign biological sludge treatment equipment is mainly for the purpose of absorbing sludge, and has not produced actual economic benefits and formed valuable commodities. [0003] With the gradual depletion of fossil energy worldwide and the increasing content and calorific value of organic ma...

Claims

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Application Information

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IPC IPC(8): C01B3/26C01B3/38
CPCY02P20/52
Inventor 罗思义卜庆洁马晨
Owner 深圳市远卓科技有限公司
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