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A two-stage gas washing method

一种气体、氢气的技术，应用在分离方法、气体处理、制造可燃气体等方向，能够解决温差消耗、能量处理成本高昂等问题，达到能量消耗低的效果

Active Publication Date: 2013-12-25
NESTE OIL OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Huge temperature differences between process stages consume a lot of energy and make processing costly

Method used

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  • A two-stage gas washing method
  • A two-stage gas washing method
  • A two-stage gas washing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0175] 3 Example 3: Two-stage cleaning scheme on pilot scale:

[0176] 3.1 Experimental equipment

[0177] Absorption experiments were performed in a pilot-scale facility in batch mode. The feed is provided by the synthesis gas preparation plant in Varkaus, Finland. The aqueous wash is performed using a packed bed absorption column, thereby forming the first stage.

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Abstract

The present description is related to the field of hydrocarbon production by gasification of carbonaceous material. It provides a two-stage gas washing method as a part of gas refining. More specifically it discloses a method for hydrogen sulfide and carbon dioxide removal from synthesis gas produced by gasification. It introduces a use of a novel combination of wash approaches for this application. As a specific application, this process is utilized as a part of biomass to liquid (BTL) process.

Description

technical field [0001] This specification relates to the field of hydrocarbon production by gasification of carbonaceous materials. It provides a two-stage gas cleaning method as part of the syngas refining process. More specifically, it discloses a method for removing hydrogen sulfide and carbon dioxide from synthesis gas produced by gasification. It uses a novel combination of cleaning methods for this application, one of which involves chemical reactions and the other is based on physical absorption. As a specific application, the method is used as part of a biomass-to-liquids (BTL) process. Background technique [0002] Gasification of carbonaceous materials primarily produces a mixture of carbon monoxide and hydrogen called synthesis gas. Carbon dioxide, water and various hydrocarbons are by-products present in large quantities in the gasification product. Depending on the source and composition of the carbonaceous feedstock and the gasification conditions, the cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52C10K1/08C10J3/00
CPCB01D53/1406B01D53/1462B01D53/526B01D2252/2021B01D2257/304B01D2257/504C01B17/20C01G3/06C10G2300/1011C10G2300/207C10G2300/44C10J3/00C10J2300/0916C10K1/004C10K1/005C10K1/085C10K1/108C10K1/165Y02E20/18Y02E50/30Y02P10/146Y02P20/145Y02P20/151Y02P30/20Y02C20/40
Inventor J.瓦尔斯特雷姆J.艾特塔马雅I.埃洛斯
Owner NESTE OIL OY
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