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Development of Enclosed Gas Recycling System for Space Station

Research Project

Project/Area Number 01550750
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 化学工学
Research InstitutionWaseda University

Principal Investigator

SHIROTSUKA Tadashi  Waseda University, School of Science and Engineering, Professor, 理工学部, 教授 (00063157)

Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1990: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1989: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsSpace Station / Air revitalization System / Contaminant Gas / Oxidation Reaction / Pulse Technique / Palladium Catalyst / 閉鎖系 / ガス循環 / Pd触媒 / 完全酸化 / 炭酸ガス変成反応 / メタン / 鉄微粒子
Research Abstract

A General methodology was developed for an enclosed air revitalization system which will allow about a hundred people to live for a long time in the large space station expected to be in orbit in the 21st century.
The air revitalization system concentrates exhaled carbon dioxide (CO_2) for treatment by reduction and electrolysis to convert carbon dioxide into oxygen. Therefore the necessary oxygen for long term stays in the space station can be provided. A technology was developed for converting contaminant generated by interior materials into carbon dioxide and water.
A space shuttle vehicle for conducting space experiments for about ten days only will have small crew, so oxygen containers will be sufficient. A space station carrying as many as 100 persons will require oxygen self-sufficiency.
The new air revitalization system first concentrates, by about 100 times, the CO_2 generated inside the station with a solid amine adsorbent. This is then hydrogenated to convert it into water, carbon and methane by a catalytic reaction. The carbon is stored, methane discharged outside the station and the water decomposed into hydrogen and oxygen by electrolysis. By repeating these operations, CO_2 is converted into oxygen artificially as in photosynthesis.
In a space station, toxic gases such as alcohols and ketones are generated from the interior materials. As these contaminants invariably consist of carbon, hydrogen and oxygen. A technique was developed using Pd catalyst in air to process the contaminants into CO_2 and hydrogen for producing oxygen.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 城塚 正,他3名: "エネルギ-分野における触媒利用技術" ケミカル・エンジニヤリング. 34. 273-284 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 城塚 正,他2名: "GPIBによるパルス法波形処理システム" 触媒学会コンピュ-タの利用研究会講演集. 1. 25-29 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Shirotsuka et al.: "Utilization of Catalyst for Energy Saving in chemical Industries" Chemical Engineering (Japan). vol. 34. 273-284 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Shirotsuka et al.: "Image Processing on Pulse Technique using GPIB" Reports of Research Project on Effective Use of Computer (Catalysis Society of Japan). vol. 1. 25-29 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 城塚 正他2名: "GPIBによるパルス法波形処理システム" 触媒学会コンピュ-タの利用研究会 講演集. 1. 25-29 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 白塚正他3名: "エネルギ-分野における触媒利用技術" ケミカル・エンジニヤリング. 34. 273-284 (1989)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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