Shorter chain carboxylic acid ethyl esters, furan derivatives, cyclopentanone, phenol derivatives, benzene derivatives, aromatic acid derivatives, longer chain carboxylic ethyl esters and sterides are main compositions of LPs with the above three catalysts. 3种催化剂催化液化麦秆所得LPs组成主要包括短链脂肪酸乙酯、呋喃衍生物、环戊醛酮、苯酚衍生物、苯衍生物、芳酸衍生物、长链脂肪酸乙酯和甾族化合物。