Comparison of different kraft lignin-based vanillin production processes. - Nattanan Wongtanyawat; Possawat Lusanandana; Nawaporn Khwanjaisakun; Pichayapan Kongpanna; Janewit Phromprasit; Lida Simasatitkul; Suksun Amornraksa; Suttichai Assabumrungrat (Comput. Chem. Eng., 2018)