成果報告書詳細
管理番号20110000000701
タイトル*平成22年度中間年報 国際連携クリーンコール技術開発プロジェクト クリーンコール技術に関する基盤的国際共同研究 低品位炭起源の炭素フリー燃料による将来エネルギーシステム(水素チェーンモデル)の実現可能性に関する調査研究(H22~H23)
公開日2011/6/23
報告書年度2010 - 2010
委託先名川崎重工業株式会社
プロジェクト番号P10017
部署名環境部
和文要約和文要約等以下本編抜粋:1. 研究開発の内容および成果等 褐炭は世界に広く分布しており、石炭に匹敵する埋蔵量がある。しかし、褐炭は輸送が困難でほとんど未利用となっている。これを有効に利用してクリーンエネルギー燃料である水素を製造・精製するとともに、発生するCO2を分離・回収して安全に貯留する基礎技術を検討し、更に、精製された水素を我が国で利用するための貯蔵・輸送・利用を含めた将来の「水素チェーンモデル」を構築し、その実用化を目指した基盤技術、構成設備及び経済性等について以下の3項目に関する研究開発を豪州の研究機関等と共同で実施した。
英文要約Title: Feasibility Study to Realize a Future Energy System (Hydrogen Supply Chain) Using Carbon-free Fuel Derived from Low Rank Coal (FY2010-FY2011) FY2010 Annual Report
1. Verification test of brown coal gasification: Oxygen blown gasification tests with Australian brown coal characterized as low rank coal were conducted utilizing KHI owned bench-scale atmospheric gasification test facility. A basic gasification characteristic under atmospheric condition was confirmed. In FY2011, pressurized gasification test will be conducted and a basic gasification characteristic under pressurized condition (0.3MPaG) will be confirmed. Further, a gas processing facility will be newly constructed downstream of the gasifier. With the gassifier and the gas processing plant, it will be confirmed that syngas containing high concentration of hydrogen can be produced from Australian brown coal. 2. Verification test of CO2 capture/separation and recovery: CO2 capture/separation from coal combustion gas with KHI’s propriety innovative solid adsorbent (so-called “K-CCS”) and CO2 desorption from the adsorbent with low energy were confirmed by conducting the bench-scale test utilizing KHI owned bench-scale CO2 capture/separation test facility. 3. Optimization of overall energy system (hydrogen supply chain): (1) Taking into consideration the simulation result of the future demand of hydrogen in Japan, the capacity of the existing infrastructure which can be used for hydrogen application, capability of constructing LH2 carrier, expected boil-off during transportation, etc., capacity of hydrogen plant was determined to be approx. 700 t/day-H2 (based on loading to carrier). (2) Five (5) possible process schemes for hydrogen supply chain (a. Air Blown Gasification - Hydrogen Gas Pipeline Transportation, b. Oxygen Blown Gasification - Hydrogen Gas Pipeline Transportation, c. Liquid Hydrogen Truck Transportation, d. Brown Coal Truck Transportation, e. Electrolysis) were addressed. (3) Each possible scheme was investigated, characterized, and cost of each was estimated. (4) The most suitable plant sites for brown coal gasification-purification plant, export port in Australia and import port in Japan were investigated considering various factors such as security of supply of brown coal for long-term operation, sea depth and surrounding available area for large scale hydrogen storage, distances between port and brown coal mine and between port and hydrogen end use sites, and finally selected as “Driffield in Latrobe Valley”, “a port in Gippsland” and “Sodegaura in Japan”, respectively. (5) Based on technical and economic feasibility and CO2 emission, etc., the most feasible process scheme was determined to be “b. Oxygen Blown Gasification ~ Hydrogen Gas Transportation Pipeline”. (6) Basic engineering for the selected scheme is in progress. (7) Review of gas purification technologies was conducted by CSIRO. (8) Review of transportation and storage of CO2 from the Latrobe Valley was conducted by CO2CRC.
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