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A process and relating apparatus to make pure hydrogen from a syngas originated from wastes gasification

A technology for synthesis gas and crude synthesis gas, which is applied in the preparation of organic compounds, preparation of urea derivatives, chemical instruments and methods, etc., and can solve the problems of complexity, high maintenance cost, and high cost.

Active Publication Date: 2019-07-23
内斯特化学股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The system is carbon neutral but relatively complex and expensive, requires a relatively large amount of energy for plasma gasification, and has rather high maintenance costs

Method used

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  • A process and relating apparatus to make pure hydrogen from a syngas originated from wastes gasification
  • A process and relating apparatus to make pure hydrogen from a syngas originated from wastes gasification
  • A process and relating apparatus to make pure hydrogen from a syngas originated from wastes gasification

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Embodiment Construction

[0037] Specific embodiments of the present invention are described with reference to the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0038] figure 1 An overview of one embodiment according to the invention is shown in .

[0039] The crude synthesis gas from the high temperature gasification of organic waste, once cooled in a suitable heat recovery boiler or quencher, is treated in the scrubbing section to remove particulates and chlorine compounds by adding an acid solution followed by an alkaline solution and passing through WESP, And the syngas is ready for reforming after its compression. In the conversion step, CO is converted to CO by adding steam 2 and H 2 ;H 2 S is reduced to sulfur in so...

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Abstract

A raw syngas coming from HT gasification of organic wastes, once cooled in a proper heat recovery boiler or in a quencher is treated in a scrubbing section where, by adding an acidic solution followedby alkaline solution and by a WESP, particulate and chlorine compounds are removed and the syngas is ready for conversion, after its compression. In the conversion step CO is converted into C02 and H2 by adding steam; H2S is reduced to sulphur in a solid form, C02 is removed via cryogenic unit or an amine unit and pure H2 is produced.

Description

[0001] Summary [0002] A method and apparatus for the production of pure hydrogen from synthesis gas produced by high temperature gasification of municipal, agricultural or industrial derived waste. The method enables the further reaction of pure hydrogen with nitrogen to produce ammonia and urea. [0003] illustrate technical field [0004] The present invention generally relates to the conversion of waste materials into chemicals and / or nitrogen-based fertilizers. More specifically, the present invention provides methods, systems and apparatus for purifying synthesis gas produced by high temperature gasification of waste materials, such as municipal waste, refuse-derived fuel, or industrial waste, into pure hydrogen. [0005] Such hydrogen can further react with nitrogen to form ammonia, which in turn can react with CO 2 The reaction produces urea. Background technique [0006] Global climate change on the one hand and increasing waste production worldwide on the othe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/50C10K1/00B01D53/047C01B3/52C01B3/56C07C273/04C10J3/00C10K1/02C10K1/04C10K3/04B01D53/14B01D53/26B01D53/48B01D53/58B01D53/62B01D53/75
CPCC10K1/006B01D53/047B01D53/75C01B3/50C01B3/506C01B3/52C01B3/56C07C273/04C10J3/00C10K1/003C10K1/004C10K1/028C10K3/04C10K1/007C10K1/008C10K1/005C10K1/34B01D53/002B01D53/1468B01D2256/16B01D2257/304B01D2257/504Y02C20/40Y02P20/151Y02P20/10C01B2203/0475C01B2203/0485
Inventor G·亚夸涅洛A·萨拉迪尼E·安东内蒂
Owner 内斯特化学股份公司