▁such ▁as ▁thermal ▁pre tre at ment , ▁chemical ▁do ping ▁and ▁the ▁production ▁of ▁artificial ▁sor b ents . ▁The ▁method ▁applying ▁the ▁concept ▁of ▁fluid ized ▁bed ▁re actor , ▁but ▁there ▁are ▁some ▁problems ▁causing ▁the ▁uncertainty ▁for ▁the ▁process . ▁At tr ition ▁of ▁the ▁lim estone ▁can ▁be ▁a ▁problem ▁during ▁repeated ▁cy cling . ▁ ▁Ben ef its ▁of ▁calci um ▁looping ▁compared ▁with ▁other ▁post - comb ust ion ▁capture ▁processes ▁ ▁Cal ci um ▁looping ▁comp ares ▁favor ably ▁with ▁several ▁post - comb ust ion ▁capture ▁techn ologies . ▁Am ine ▁scr ub bing ▁is ▁the ▁capture ▁technology ▁closest ▁to ▁being ▁market - ready , ▁and ▁calci um ▁looping ▁has ▁several ▁marked ▁benefits ▁over ▁it . ▁When ▁mode led ▁on ▁a ▁ 5 8 0   MW ▁coal - f ired ▁power ▁plant , ▁Cal ci um ▁looping ▁experienced ▁not ▁only ▁a ▁smaller ▁efficiency ▁penalty ▁( 6 . 7 - 7 . 9 % ▁points ▁compared ▁to ▁ 9 . 5 % ▁for ▁mon o eth an ol am ine ▁and ▁ 9 % ▁for ▁ch illed ▁am mon ia ) ▁but ▁also ▁a ▁less ▁complex ▁retro f itting ▁process . ▁Both ▁techn ologies ▁would ▁require ▁the ▁plant ▁to ▁be ▁retro f itted ▁for ▁ad option , ▁but ▁the ▁calci um ▁looping ▁retro f itting ▁process ▁would ▁result ▁in ▁twice ▁the ▁net ▁power ▁output ▁of ▁the ▁scr ub bing ▁technology . ▁Furthermore , ▁this ▁advantage ▁can ▁be ▁comp ounded ▁by ▁introdu cing ▁technology ▁such