公开(公告)号：US20140134678A1

公开(公告)日：2014-05-15

申请号：US14107481

申请日：2013-12-16

Applicant: Iogen Energy Corporation

Inventor： Brian Foody ,  Ziyad Rahme ,  Jeffrey S. Tolan

IPC: C12P19/14 ,  C12P19/02

CPC classification number: C12P19/14 ,  C12M45/09 ,  C12P19/02 ,  C12P19/04 ,  Y02E50/16 ,  Y02E50/17

Abstract: A process for the enzymatic hydrolysis of cellulose to produce a hydrolysis product from a pre-treated cellulosic feedstock is provided. The process comprises introducing an aqueous slurry of the pre-treated cellulosic feedstock at the bottom of a hydrolysis reactor. Axial dispersion in the reactor is limited by avoiding mixing and maintaining an average slurry flow velocity of about 0.1 to about 20 feet per hour, such that the undissolved solids flow upward at a rate slower than that of the liquid. Cellulase enzymes are added to the aqueous slurry before or during the step of introducing. An aqueous stream comprising hydrolysis product and unhydrolyzed solids is removed from the hydrolysis reactor. Also provided are enzyme compositions which comprise cellulase enzymes and flocculents for use in the process. In addition, a kit comprising cellulase enzymes and flocculent is provided.

Abstract translation: 提供了一种纤维素酶水解从预处理的纤维素原料产生水解产物的方法。 该方法包括在水解反应器的底部引入预处理的纤维素原料的含水浆料。 通过避免混合并保持约0.1至约20英尺/小时的平均浆料流速，使得未溶解的固体以比液体慢的速率向上流动，来限制反应器中的轴向分散。 在引入步骤之前或期间，将纤维素酶加入到含水浆料中。 从水解反应器中除去包含水解产物和未水解固体的水流。 还提供了包含用于该方法的纤维素酶和絮凝剂的酶组合物。 此外，提供了包含纤维素酶和絮状物的试剂盒。

公开(公告)号：US20150344378A1

公开(公告)日：2015-12-03

申请号：US14822152

申请日：2015-08-10

Applicant: IOGEN ENERGY CORPORATION

Inventor： Robert Griffin ,  Ziyad Rahme ,  Patricia Dawn MacLean ,  Brian Foody

IPC: C05B9/00 ,  C10L1/198 ,  C12P7/10 ,  B01D9/00 ,  C05D9/00

CPC classification number: C05B9/00 ,  B01D3/002 ,  B01D9/00 ,  C02F1/04 ,  C02F1/52 ,  C02F9/00 ,  C05D9/00 ,  C05F5/008 ,  C10L1/1988 ,  C10L2200/0469 ,  C10L2250/04 ,  C10L2290/24 ,  C10L2290/26 ,  C10L2290/543 ,  C12P3/00 ,  C12P7/10 ,  C22B26/22 ,  D21C11/0007 ,  F22B1/18 ,  F23G5/04 ,  F23G7/10 ,  Y02A40/212 ,  Y02E50/16 ,  Y02E50/343 ,  Y02W30/47

Abstract: The present invention relates to a process for generating steam and recovering salts during a lignocellulosic conversion process. The process comprises de-salting a still bottoms stream; incinerating a stream comprising lignin and the de-salted still bottoms stream in an incinerator; and utilizing the heat generated from said incinerating to produce steam. Further provided is a process that comprises feeding a concentrated still bottoms stream to a crystallizer and forming insoluble solids therein comprising salts. Furthermore, the invention relates to a process for recovering salts from a lignocellulosic conversion process, which process comprises the addition of solvent to a still bottoms stream to precipitate salts therefrom. Also provided is a still bottoms composition, a fertilizer product and a composition for incineration.

Abstract translation: 本发明涉及在木质纤维素转化过程中产生蒸汽和回收盐的方法。 该方法包括对仍然底部物流进行脱盐; 在焚烧炉中焚烧包含木质素和脱盐的塔底流的物流; 并且利用从所述焚化产生的热产生蒸汽。 还提供了一种方法，其包括将浓缩的残留物流送入结晶器并在其中形成其中包含盐的不溶性固体。 此外，本发明涉及一种从木质纤维素转化方法中回收盐的方法，该方法包括将溶剂加入至塔底馏分料流中以从其中沉淀出盐。 还提供了还有底部组合物，肥料产品和用于焚化的组合物。