mabaka a haholo psa le vpsa
PSA (Pressure Swing Adsorption) le VPSA (Vacuum Pressure Swing Adsorption) ke lesedieng tše di bile motheo wa sebetsong sa gasi e leng e ne a fumana mabapi lefatsheng la dintho tse pedi. PSA e hloboga gore e tsamaisa ditšhaleho tse ding tša go reka pressure go ya ka letsatsi le ha e nyane go sepela go feta go reka 4-8 bar pressure. Mopire e kgona gore gaseng tse ding tse di kgethelela dikgato tse ding tsa go reka pressure tse ding. Ha re e mong, VPSA e hloboga gore e tsamaisa ditšhaleho tse ding tša go reka pressure go ya ka letsatsi le ha e nyane go sepela go feta go reka 0.3-1.0 bar go ya ka letsatsi le ha e nyane. Sebopeo sa go ya ka vacuum e bolella go reka go fihlela dikgato tse ding tsa go reka, e leng e ne a fihlela go ya ka letsatsi le ha e nyane. Lesedi la gagwe le kgolo ya ditšhaleho tse ding le ditaelo tse ding tsa energy consumption. Ditsela tsa PSA tsa go ne a neng a fihlela energy ya go reka, le e na le ditaelo tse ding tsa go ya ka letsatsi le ha e nyane, mme ditsela tsa VPSA tsa go ne a neng a fihlela ditšhaleho tse ding tsa go reka le ha e nyane le e ne a ne a fihlela go ya ka vacuum pumps. Batho bja bongata ba ile ba ne ba fumana fetolaeng feela ka go reka nitrogen, oxygen le hydrogen purification, mme VPSA e ne e bile e efele go ya ka letsatsi le ha e nyane go feta go reka oxygen ya high purity.