System for treating surplus hydrogen of pulp paper factory and treatment method thereof
A hydrogen and paper mill technology, applied in hydrogen separation and other directions, can solve the problems of waste of renewable resources and hidden dangers, and achieve the effects of cost saving, process safety, great practical significance and social and economic benefits.
Active Publication Date: 2014-11-05
ASIA SYMBOL SHANDONG PULP & PAPER
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Problems solved by technology
[0004] In order to solve the problem of potential safety hazards and huge waste of renewable resources in existing pulp and paper mills when processing excess hydrogen, the present invention designs a system for processing excess hydrogen in pulp and paper mills and its processing method. The hydrogen purification after the production process of the paper mill, and then the purified hydrogen is used to complete the work of processing excess hydrogen, which not only eliminates a series of explosion risks, technical problems and safety hazards that may be caused by the use of hydrogen in the past, It also saves energy and realizes the recycling and reuse of resources. The whole processing system has a high degree of automation and is easy to operate, and is suitable for processing the surplus hydrogen generated during industrial production.
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[0034] The content of the present invention will be further described below in conjunction with the accompanying drawings.
[0035] Such as figure 1 The system for processing excess hydrogen in a pulp and paper mill of the present invention as shown includes a water washing tower 1, an alkali washing tower 2, a carbon filter 3, a hydrogen compressor 4, a cooler 6, a gas-liquid separator 7, and a heater 8 connected in sequence 12. Lime kiln.
[0036] The main function of the carbon filter is to remove trace amounts of chlorine through the hydrogen after alkali washing. Its main principle is to utilize the action of a specially developed high-strength activated carbon whose regeneration process utilizes high-temperature steam regeneration, hot air / purging.
[0037] Specially designed dew removal and anti-corrosion technology. Hydrogen compression and pipeline transportation are the last transportation links of the system, equipped with cooling and cooling water removal heat e...
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Abstract
The invention discloses a system and a method for treating surplus hydrogen of a pulp paper factory. The system comprises a water washing tower, an alkali washing tower, a carbon filter, a hydrogen compressor, a cooler, a gas-liquid separator, a heater and a lime kiln. The method for treating the surplus hydrogen by using the system comprises the following steps of: (1) carrying out purification treatment on the surplus hydrogen; and (2) treating the purified hydrogen: conveying the purified hydrogen into the lime kiln to be combusted and utilized, so as to finish the whole work of the surplus hydrogen treatment. The system and the method disclosed by the invention have the advantages that the surplus hydrogen collected by workshops of the pulp paper factory is completely purified by the water washing tower, the alkali washing tower, the carbon filter, the hydrogen compressor, the cooler and the heater and the hydrogen is conveyed into the lime kiln to be recycled and reutilized; the whole treatment process is safe and does not generate combustion caused by explosion, leakage and accidental conditions, and accidents are not caused; and the system can be automatically controlled and can also be manually controlled, so that the system is convenient and easy to operate.
Description
technical field [0001] The invention belongs to the technical field of processing surplus hydrogen in the process of industrial production and resource recycling and comprehensive utilization, in particular to a system for processing surplus hydrogen in a pulp and paper mill and a processing method thereof. Background technique [0002] As the domestic energy situation becomes more and more tense, energy costs account for an increasing proportion of manufacturing enterprises. How to achieve energy saving and consumption reduction in the production process is crucial to the production and development of enterprises. A modern million-ton hardwood pulp mill adopting the ECF bleaching process typically has a complete set of chlor-alkali electrolysis section and chlorate electrolysis section in the production process of its own chemical factory producing bleaching agent and pulping and cooking alkali of chemical workshops, ClO will be consumed per ton of pulp and paper produced ...
Claims
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IPC IPC(8): C01B3/50
Inventor 张守国马克顺杨恒赵会山杜淮强
Owner ASIA SYMBOL SHANDONG PULP & PAPER