Methods for hydrothermal digestion of cellulosic biomass solids in the presence of a distributed slurry catalyst
    2.
    发明授权
    Methods for hydrothermal digestion of cellulosic biomass solids in the presence of a distributed slurry catalyst 有权
    在分布式浆料催化剂存在下水热消化纤维素生物质固体的方法

    公开(公告)号:US09527788B2

    公开(公告)日:2016-12-27

    申请号:US13928770

    申请日:2013-06-27

    申请人: SHELL OIL COMPANY

    摘要: Digesting cellulosic biomass solids in the presence of a well-distributed slurry catalyst capable of activating molecular hydrogen may limit the amount of degradation products that form during digestion. Methods for digesting cellulosic biomass solids can comprise: providing cellulosic biomass solids and a slurry catalyst in a hydrothermal digestion unit, the slurry catalyst being capable of activating molecular hydrogen; distributing the slurry catalyst within the cellulosic biomass solids using upwardly directed fluid flow in the hydrothermal digestion unit; heating the cellulosic biomass solids in the hydrothermal digestion unit in the presence of the slurry catalyst, a digestion solvent, and molecular hydrogen, thereby forming a liquor phase comprising soluble carbohydrates; and performing a first catalytic reduction reaction on the soluble carbohydrates within the hydrothermal digestion unit, thereby at least partially forming a reaction product comprising a triol, a diol, a monohydric alcohol, or any combination thereof in the hydrothermal digestion unit.

    摘要翻译: 在能够活化分子氢的分布良好的浆料催化剂存在下,消化纤维素生物质固体可能会限制消化过程中形成的降解产物的量。 用于消化纤维素生物质固体的方法可以包括:在水热消解单元中提供纤维素生物质固体和浆料催化剂,所述浆料催化剂能够活化分子氢; 在水热消解单元中使用向上引导的流体流将浆料催化剂分散在纤维素生物质固体内; 在浆液催化剂,消解溶剂和分子氢的存在下,加热水热消解装置中的纤维素生物质固体,从而形成包含可溶性碳水化合物的液相; 对水热消解装置内的可溶性碳水化合物进行第一催化还原反应,由此在水热消解装置中至少部分地形成包含三醇,二醇,一元醇或其任何组合的反应产物。

    METHOD OF HYDROGASIFICATION OF BIOMASS TO METHANE WITH LOW DEPOSITABLE TARS
    4.
    发明申请
    METHOD OF HYDROGASIFICATION OF BIOMASS TO METHANE WITH LOW DEPOSITABLE TARS 有权
    将生物质氢化成低度沉积的甲烷的方法

    公开(公告)号:US20130172637A1

    公开(公告)日:2013-07-04

    申请号:US13750757

    申请日:2013-01-25

    申请人: G4 Insight Inc.

    IPC分类号: C10L3/08

    摘要: A method for converting lignocellulosic biomass to a useful fuel is disclosed in a process sequence resulting in low levels of depositable tars in an output gas stream. One disclosed embodiment comprises performing a sequence of steps at elevated pressure and elevated hydrogen partial pressure, including fast (or flash) hydropyrolysis of a lignocellulosic biomass feed followed sequentially with catalytically enhanced reactions for the formation of methane operating at moderate temperatures of from about 400° C. to about 650° C. under moderately elevated pressure (about 5 atm to about 50 atm). A temperature rise in the catalyst above pyrolysis temperature is achieved without the addition of air or oxygen. Gas residence time at elevated temperature downstream of methane formation zones extends beyond the time required for methane formation. This sequence results in low tar deposit levels. The catalyst promotes preferential formation of methane and non-deposit forming hydrocarbons, and coke re-gasification.

    摘要翻译: 将木质纤维素生物质转化为有用燃料的方法在工艺顺序中公开,导致输出气流中可沉积的焦碳含量低。 一个公开的实施方案包括在升高的压力和升高的氢分压下进行一系列步骤,包括木质纤维素生物质进料的快速(或快速)加氢热解,然后依次具有用于在约400℃的中等温度下生成甲烷的催化增强反应 在约升高的压力(约5大气压至约50大气压)下升温至约650℃。 在不增加空气或氧气的情况下,实现催化剂在高于热解温度的温度升高。 在甲烷形成区下游的高温下的气体停留时间超出甲烷形成所需的时间。 该顺序导致低焦油沉积物含量。 催化剂促进甲烷和非沉积物形成烃的优先形成,并且焦炭再气化。

    METHOD FOR UPGRADING BIO-OIL USING SUPERCRITICAL ALCOHOLS AND UPGRADED BIO-OIL BY THE METHOD
    8.
    发明申请
    METHOD FOR UPGRADING BIO-OIL USING SUPERCRITICAL ALCOHOLS AND UPGRADED BIO-OIL BY THE METHOD 审中-公开
    使用超临界醇和升级的生物油来提高生物油的方法

    公开(公告)号:US20160348009A1

    公开(公告)日:2016-12-01

    申请号:US15133914

    申请日:2016-04-20

    IPC分类号: C10G3/00 C10L1/04

    摘要: Provided herein is a method for upgrading a bio-oil using a supercritical alcohol, and the bio-oil upgraded by the method, the method including removing oxygen existing in the molecule of the bio-oil using the supercritical state alcohol as a solvent and reacting the bio-oil and the alcohol solvent at supercritical state so as to increase the energy content, removing organic acids that increase the acidity of the bio-oil including formic acid and acetic acid or converting the organic acids to other materials so as to reduce the acidity, and converting hydrophilic materials in the bio-oil to hydrophobic materials so as to reduce the moisture content, and increasing the pH of the bio-oil to reduce the corrosiveness, thereby providing the effectiveness in upgrading a bio-oil.

    摘要翻译: 本文提供了一种使用超临界醇升级生物油的方法,通过该方法提高生物油,该方法包括使用超临界状态的醇作为溶剂除去存在于生物油分子中的氧,并使 生物油和醇溶剂处于超临界状态,以增加能量含量,除去增加包括甲酸和乙酸在内的生物油的酸度的有机酸,或将有机酸转化为其它物质,以减少 酸性,并将生物油中的亲水性物质转化为疏水性材料,以降低水分含量,并增加生物油的pH值以降低腐蚀性,从而提供生物油升级的有效性。