公开(公告)号：WO2023092027A1

公开(公告)日：2023-05-25

申请号：PCT/US2022/080072

申请日：2022-11-17

Applicant: KANBOL, INC.

Inventor： LEACH, Miles ,  MCKENZIE, Michel

IPC: D21C1/06 ,  D21C3/02 ,  D21C3/26 ,  D21C11/00 ,  D21C3/04 ,  D21C3/22 ,  D21C9/02 ,  C08B37/14 ,  C07G1/00

Abstract: Methods and systems for preparing agricultural residue or other agricultural feedstock for use as a pulp. The method includes providing non-wood agricultural residue (e.g., corn stover) or other agricultural feedstock that includes agricultural fibers, chemically pulping the agricultural fibers in a preliminary alkaline chemical pulping process at a low consistency and at a low temperature to produce partially pulped agricultural fibers, such step including separating lignin and hemicellulose from the partially pulped agricultural fibers, introducing the partially pulped agricultural fibers into a first reactor, wherein the first reactor operates at a low temperature of less than 100°C (e.g., 65°C), introducing the agricultural fibers from the first reactor into a second reactor, where the second reactor operates at a low temperature, of less than 100°C (e.g., 94-96°C), the second reactor operating at a higher temperature than the first reactor, to produce pulped agricultural fibers.

公开(公告)号：WO2022251873A1

公开(公告)日：2022-12-01

申请号：PCT/US2022/072613

申请日：2022-05-27

Applicant: KANBOL, INC.

Inventor： LEACH, Miles ,  MCKENZIE, Michel

IPC: D21H11/12 ,  D21B1/04 ,  D21B1/06 ,  D21B1/10 ,  D21H11/02

Abstract: Methods and systems for preparing non-wood agricultural feedstock material for use as a pulp, and making a paper product therefrom. The method includes providing non¬ wood agricultural feedstock material (e.g., corn stover) that includes agricultural fibers, chemically pulping the agricultural fibers at a low temperature of less than 100°C, refining the agricultural fibers (either before or after cooking), and introducing the produced agricultural fiber pulp into a papermaking machine to make liner, medium, tissue, towel, cardstock or other paper product (e.g., tubes, cores, chipboard, grayboard, or other rigid container board). The agricultural pulp fibers can also be introduced into a molded pulp products manufacturing machine, to make egg cartons, molded paper plates, molded single use packaging, or the like.