일반적으로수소의정제는화학적, 물리적인방법을통해수행한다. 여러종류의정제방법중현재는정제용량 및경제성이가장우수한PSA(Pressure Swing Adsorption)를이용한정제방법이가장널리사용되고있다. 국내도 대부분PSA를이용하여자동차및발전용수소연료전지등에사용하는수소를정제하고있다. 기존석유화학단지 중심의부생수소는운송등의어려움이있다. 정부는도시가스공급망과연계하여소비지에서직접수소를생산하 는수소추출기설치계획하고있으며, 기업들도이와관련된연구및실증설비를속속설치하고있는실정이다. 유 럽등은최근PSA와관련된안전기준을마련하여시공및운영단계에서체계적인안전관리를위한노력을기울이 고있으나, 국내는PSA와관련된안전기준마련이아직까지는미흡하다. 본연구에서는기존PSA를운영하고있는 회사의설문및위험성평가를통해기존설비의문제점을파악하고, 국외기술기준에이를포함한국내기술기준을 작성하여신규설치및기존운영되고있는PSA시스템의안전을도모하고자한다.
Hydrogen purification is generally performed through chemical and physical methods. Among various types of purification method PSA(Pressure Swing Adsorption) is widely used with its purification ca- pacity and economic efficiency. In Korea, most of the hydrogen used in automobiles and power generation fuel cells is purified using PSA. Hydrogen produced in petrochemical complexes has difficulties in transportation. The government is planning to install hydrogen extractors that produce hydrogen directly from consumers in connection with the city gas supply chain, and companies are also installing related research and demonstration facilities one after another. Europe and others have recently established safety standards related to PSA and are making efforts for systematic safety management at the construction and operation stage, but domestic safety standards related to PSA are still insufficient. This study aims to identify problems of existing facilities through surveys and risk assessment by companies operating existing PSA, and to prepare domestic technical standards including them in overseas technical standards to promote the safety of new and existing PSA systems.