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    PROCESS FOR RECOVERING LIGNIN
    1.
    发明申请
    PROCESS FOR RECOVERING LIGNIN 审中-公开
    回收木质素的方法

    公开(公告)号：WO2011037967A3

    公开(公告)日：2011-03-31

    申请号：PCT/US2010/049773

    申请日：2010-09-22

    Applicant: LAKE, Michael, A. ,  BLACKBURN, John, C.

    Inventor： LAKE, Michael, A. ,  BLACKBURN, John, C.

    IPC: C07G1/00 ,  D21C11/04 ,  C08L97/00

    Abstract: There is provided a process for recovery of lignin from a black liquor that contains either soluble or dispersed lignin, generating a "liquid lignin" at high yield. Soluble lignin at elevated pH is precipitated by reducing the pH of the black liquor stream by countercurrent reaction with carbon dioxide, at elevated temperature and pressure, creating two bulk fluid phases: a heavy lignin-rich phase and a light lignin- depleted phase. The heavy lignin-rich phase is separated and washed countercurrently with a strong acid to displace metal cations from the lignin, creating a low-salt lignin, which is then formed into a low-dust high-bulk-density lignin fuel pellet. If needed, especially for lignin recovered from kraft papermaking black-liquor streams, an oxidation step is included to eliminate negative odor for high-value green-chemistry applications.

    Abstract translation: 提供了从含有可溶性或分散木质素的黑液中回收木质素的方法，产生“液体木质素” 高收益。 通过在升高的温度和压力下通过与二氧化碳逆流反应降低黑液流的pH来沉淀在升高的pH下的可溶木质素，产生两个本体流体相：富木质素富集相和轻质木质素贫化相。 富含木素的重质相被分离出来，并用强酸逆流洗涤以从木质素中置换金属阳离子，产生低盐木质素，然后形成低灰尘高堆密度木质素燃料芯块。 如果需要，特别是对于从牛皮纸造纸黑液流中回收的木质素，包括氧化步骤以消除高价值绿色化学应用中的负面气味。

    OPTICAL ANALYSIS SYSTEM AND OPTICAL TRAIN
    2.
    发明申请
    OPTICAL ANALYSIS SYSTEM AND OPTICAL TRAIN 审中-公开
    光学分析系统和光学火车

    公开(公告)号：WO2007064578A3

    公开(公告)日：2008-05-22

    申请号：PCT/US2006045363

    申请日：2006-11-27

    Applicant: OMETRIC CORP ,  MYRICK MICHAEL L ,  JAMES JONATHAN ,  BLACKBURN JOHN C ,  FREESE ROBERT P

    Inventor： MYRICK MICHAEL L ,  JAMES JONATHAN ,  BLACKBURN JOHN C ,  FREESE ROBERT P

    IPC: G06E3/00 ,  G01J3/02 ,  G01J3/28 ,  G01N21/25

    CPC classification number: G06E3/001

    Abstract: A multivariate optical computing and analysis system includes a light source configured to radiate a first light along a first ray path; a modulator disposed in the first ray path, the modulator configured to modulate the first light to a desired frequency; a spectral element disposed proximate the modulator, the spectral element configured to filter the first light for a spectral range of interest of a sample; a cavity disposed in communication with the spectral element, the cavity configured to direct the first light in a direction of the sample; a tube disposed proximate the cavity, the tube configured to receive and direct a second light generated by a reflection of the first light from the sample, the tube being further configured to separate the first and second lights; a beamsplitter configured to split the second light into a first beam and a second beam; an optical filter mechanism disposed to receive the first beam, the optical filter mechanism configured to optically filter data carried by the first beam into at least one orthogonal component of the first beam; and a detector mechanism in communication with the optical filter mechanism to measure a property of the orthogonal component to measure the data.

    Abstract translation: 多变量光学计算和分析系统包括配置成沿第一射线路径辐射第一光的光源; 调制器，设置在第一射线路径中，调制器被配置为将第一光调制到期望的频率; 设置在所述调制器附近的光谱元件，所述光谱元件被配置为过滤所述第一光以获得样品的感兴趣的光谱范围; 设置成与所述光谱元件连通的空腔，所述空腔被配置为沿所述样品的方向引导所述第一光; 管，其设置在所述空腔附近，所述管被配置为接收和引导由来自所述样品的所述第一光的反射产生的第二光，所述管还被配置为分离所述第一和第二光; 分束器，被配置为将所述第二光分成第一光束和第二光束; 滤光器机构，设置成接收第一光束，滤光器机构被配置为将由第一光束承载的数据光学滤波成第一光束的至少一个正交分量; 以及与光学滤波器机构通信以测量正交分量的特性以测量数据的检测器机构。

    PROCESS FOR PRODUCING FURFURAL FROM BLACK LIQUOR
    6.
    发明申请
    PROCESS FOR PRODUCING FURFURAL FROM BLACK LIQUOR 审中-公开
    从黑色液体生产糠醛的方法

    公开(公告)号：WO2012161916A2

    公开(公告)日：2012-11-29

    申请号：PCT/US2012/035159

    申请日：2012-04-26

    Applicant: LIQUID LIGNIN COMPANY, LLC ,  LAKE, Michael A. ,  BLACKBURN, John C.

    Inventor： LAKE, Michael A. ,  BLACKBURN, John C.

    IPC: C07D307/50 ,  C07D307/48

    CPC classification number: C07D307/50 ,  C07D307/48

    Abstract: A process for making furfural using papermaking black liquor from the kraft pulping process as a feed material. First, the lignin is removed from the black liquor by carbonizing the black liquor to a pH below pH 10 to insolubilize the lignin, neutralize NaOH and other inorganic components of the black liquor. The next step is to treat the carbonated black liquor that contains the hemicellulose to remove the high molecular weight components. In a preferred embodiment the treatment uses multiple sequential steps. The first step of the treatment is to use ultrafiltration, centrifugation or dissolved- air floatation to separate the high molecular weight components. The second filtration is to pass the hemicellulose containing black liquor stream through a nanofilter to remove low molecular weight components. The conversion of xylans in the hemicellulose- containing mixture to furfural is accomplished using a catalytic process. The xylans are converted to pentose sugars and then converted to furfural. The furfural is formed at a low concentration and then further concentrated.

    Abstract translation: 使用造纸黑液从硫酸盐制浆工艺制成糠醛作为原料的方法。 首先，通过将黑液碳化成低于pH 10的pH将木质素从黑液中除去，以使木质素不溶解，中和黑液中的NaOH和其它无机成分。 下一步是处理含有半纤维素的碳酸黑液以除去高分子量组分。 在优选实施方案中，治疗使用多个连续步骤。 处理的第一步是使用超滤，离心或溶解空气漂浮来分离高分子量组分。 第二次过滤是将含有半纤维素的黑液流通过纳米过滤器以除去低分子量组分。 木质纤维素混合物中的木聚糖转化为糠醛是使用催化方法完成的。 将木聚糖转化为戊糖，然后转化为糠醛。 糠醛以低浓度形成，然后进一步浓缩。

    IN-LINE PROCESS MEASUREMENT SYSTEMS AND METHODS
    7.
    发明申请
    IN-LINE PROCESS MEASUREMENT SYSTEMS AND METHODS 审中-公开
    在线过程测量系统和方法

    公开(公告)号：WO2008121715A1

    公开(公告)日：2008-10-09

    申请号：PCT/US2008/058450

    申请日：2008-03-27

    Applicant: OMETRIC CORPORATION ,  PERKINS, David, L. ,  FREESE, Robert, P. ,  BLACKBURN, John, C. ,  JAMES, Jonathan, H.

    Inventor： PERKINS, David, L. ,  FREESE, Robert, P. ,  BLACKBURN, John, C. ,  JAMES, Jonathan, H.

    IPC: G01J3/45

    CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0232 ,  G01J3/0235 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/42 ,  G01N21/31

    Abstract: A method of using multivariate optical computing in real-time to collect instantaneous data about a process stream includes installing an optical analysis system proximate a process line, the process line being configured to move a material past a window of the optical analysis system; illuminating a portion of the material with a light from the optical analysis system; directing the light carrying information about the portion through at least one multivariate optical element in the optical analysis system to produce an instantaneous measurement result about the portion; and continuously averaging the instantaneous measurement result over a period of time to determine an overall measurement signal of the material.

    Abstract translation: 使用多变量光学计算实时地收集关于过程流的瞬时数据的方法包括：在过程线附近安装光学分析系统，所述过程线被配置为移动材料经过光学分析系统的窗口; 用来自光学分析系统的光照射材料的一部分; 通过所述光学分析系统中的至少一个多变量光学元件引导关于所述部分的光传送信息，以产生关于该部分的瞬时测量结果; 并且在一段时间内连续平均瞬时测量结果以确定材料的总体测量信号。

    IMPROVED PROCESS FOR TREATING LIGNIN
    8.
    发明申请
    IMPROVED PROCESS FOR TREATING LIGNIN 审中-公开

    公开(公告)号：WO2023287396A1

    公开(公告)日：2023-01-19

    申请号：PCT/US2021/041350

    申请日：2021-07-13

    Applicant: LIQUID LIGNIN COMPANY ,  LAKE, Michael, A. ,  BLACKBURN, John, C. ,  HAYDEN, J., George

    Inventor： LAKE, Michael, A. ,  BLACKBURN, John, C. ,  HAYDEN, J., George

    IPC: C07G1/00 ,  C08H8/00 ,  C08L97/00

    Abstract: This invention provides improvements to processes for making granular lignin from black liquor. One of the improvements is that the use of a pre-carbonation column reduces the CO2 flow into the sparger of a carbonation column. The pre-carbonation column is used to reduce the pH of the black liquor to about 12. Another improvement is that it has been found that coalescing droplets into a bulk liquid-lignin phase can be enhanced by placing the exit of the carbonation column at or slightly beneath carbonated black liquor/liquid-lignin interface. It has also been found that operating the carbonation settler at a low pressure and pumping the liquid- lignin from the carbonation settler to the acidification reactor operating at a higher pressure allows recycling the vent gas from the acidification reactor to the pre-carbonation column. The invention also provides for a vent gas absorber.

    PH-INDUCED FRACTIONATION PROCESSES FOR RECOVERY OF LIGNIN
    9.
    发明申请
    PH-INDUCED FRACTIONATION PROCESSES FOR RECOVERY OF LIGNIN 审中-公开
    用于恢复LIGNIN的PH诱导分离过程

    公开(公告)号：WO2014070861A1

    公开(公告)日：2014-05-08

    申请号：PCT/US2013/067453

    申请日：2013-10-30

    Applicant: THIES, Mark ,  VELEZ-GUILLEN, Julian ,  BLACKBURN, John, C. ,  LAKE, Michael, A.

    Inventor： THIES, Mark ,  VELEZ-GUILLEN, Julian ,  BLACKBURN, John, C. ,  LAKE, Michael, A.

    IPC: C08H7/00 ,  C07G1/00 ,  D21C11/00

    CPC classification number: C07G1/00

    Abstract: There are provided processes for recovering a "heart-cut" liquid-lignin fraction from a lignin-containing stream such as a black liquor stream from a paper making process or the crude lignin stream within a non-destructive biomass conversion process by carbonating, acidifying and recovering the liquid-lignin fraction. The processes generally include reacting black liquor with a carefully selected amount of carbon dioxide (C02), to decrementally reduce the pH of the black liquor and produce fractions of a dense liquid-lignin precipitate at each pH decrement to about a pH of 8. The sequential reduction in pH is less than or equal to about 1.5 in most embodiments, less than 1.0 in other embodiments, and less than 0.50 in still other embodiments. It has been discovered that lignin recovered from the dense liquid-lignin precipitate at the different pH decrements can have different molecular weight ranges and/or structures. This process provides an improved lignin with a more narrow distribution of molecular weight, melt point, and chemical structure that is more suitable for high- value polymer applications.

    Abstract translation: 提供了从含有木质素的物流（例如来自造纸工艺的黑液流）或非破坏性生物质转化过程中的粗木质素物流中回收“心切”液体木质素部分的方法，其通过碳酸化，酸化 并回收液态木质素馏分。 该方法通常包括使黑液与仔细选择量的二氧化碳（CO 2）反应，以逐渐降低黑液的pH并在每个pH降低至约pH 8时产生致密的液体 - 木质素沉淀物的馏分。 在大多数实施方案中，pH的连续降低小于或等于约1.5，在其它实施方案中小于1.0，在其它实施方案中小于0.50。 已经发现，在不同pH降低下从致密液体木质素沉淀回收的木质素可以具有不同的分子量范围和/或结构。 该方法提供了改进的木质素，其分子量，熔点和化学结构的分布更窄，更适用于高价值聚合物应用。

    PROCESS FOR TREATING LIGNIN
    10.
    发明申请
    PROCESS FOR TREATING LIGNIN 审中-公开
    处理LIGNIN的过程

    公开(公告)号：WO2012161865A1

    公开(公告)日：2012-11-29

    申请号：PCT/US2012/031085

    申请日：2012-03-29

    Applicant: LIQUID LIGNIN COMPANY, LLC ,  LAKE, Michael A. ,  BLACKBURN, John C.

    Inventor： LAKE, Michael A. ,  BLACKBURN, John C.

    IPC: D21C11/04 ,  C02F1/66 ,  C02F1/54

    CPC classification number: C07G1/00 ,  C02F2103/28 ,  D21C11/0007 ,  D21C11/04

    Abstract: A process for recovery of lignin from black liquor that contains either soluble or dispersed lignin by generating a "liquid lignin" at high yield is disclosed. Soluble lignin at a high pH is precipitated by reducing the pH of the black liquor stream by countercurrent reaction with carbon dioxide, at elevated temperature and pressure, creating a heavy lignin-rich phase and a light lignin-depleted phase. The heavy lignin- rich phase is separated and washed countercurrently with a non-sulfur containing acid, such as acetic acid, to displace metal cations from the lignin, creating a low-salt lignin, which is then formed into a low-dust, high-bulk density lignin fuel pellet. If desired, an oxidation step may be used to eliminate odor for lignins having high value green chemistry applications.

    Abstract translation: 公开了通过以高产率产生“液态木质素”从黑液中回收含有可溶性或分散的木质素的木质素的方法。 通过在升高的温度和压力下通过与二氧化碳的逆流反应来降低黑液流的pH而沉淀出高pH下的可溶性木质素，产生富含木质素的重质相和较轻的木质素贫化相。 将沉淀的富含木质素的相分离并与不含硫的酸如乙酸逆流洗涤，以从木质素中置换金属阳离子，产生低盐木质素，然后将其形成低灰尘，高 稠密木质素燃料丸。 如果需要，可以使用氧化步骤来消除具有高价值绿色化学应用的木质素的气味。

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