公开(公告)号：US20170203276A1

公开(公告)日：2017-07-20

申请号：US15320334

申请日：2015-06-22

Applicant: Dow Global Technologies LLC

Inventor： Junqiang Liu ,  Douglas E. Beyer ,  Edward M. Calverley ,  Chan Han

IPC: B01J20/20 ,  B01J20/30 ,  B01D53/02 ,  B01J20/28

CPC classification number: B01J20/20 ,  B01D53/02 ,  B01D53/228 ,  B01D67/0067 ,  B01D69/02 ,  B01D71/021 ,  B01D71/34 ,  B01D2253/102 ,  B01D2253/116 ,  B01D2253/308 ,  B01D2253/311 ,  B01D2256/10 ,  B01D2256/24 ,  B01D2256/245 ,  B01D2257/102 ,  B01D2257/504 ,  B01D2257/7022 ,  B01D2257/7025 ,  B01D2325/023 ,  B01J20/28016 ,  B01J20/28023 ,  B01J20/28038 ,  B01J20/28069 ,  B01J20/2808 ,  B01J20/3007 ,  B01J20/3021 ,  B01J20/3028 ,  B01J20/3078 ,  B01J2220/4812 ,  C01B32/00 ,  C01B32/306 ,  C01B32/382 ,  C01P2006/14 ,  C01P2006/16 ,  Y02C10/08 ,  Y02C20/20 ,  Y02P20/152 ,  Y02P20/156

Abstract: Novel carbon molecular sieve (CMS) compositions comprising carbonized vinylidene chloride copolymer having micropores with an average micropore size ranging from 3.0 to 5.0. These materials offer capability in separations of gas mixtures including, for example, propane/propylene; nitrogen/methane; and ethane/ethylene. Such may be prepared by a process wherein vinylidene chloride copolymer beads, melt extruded film or fiber are pretreated to form a precursor that is finally carbonized at high temperature. Preselection or knowledge of precursor crystallinity and attained maximum pyrolysis temperature enables preselection or knowledge of a average micropore size, according to the equation ?=6.09+(0.0275×C)−(0.00233×T), wherein ? is the average micropore size in Angstroms, C is the crystallinity percentage and T is the attained maximum pyrolysis temperature in degrees Celsius, provided that crystallinity percentage ranges from 25 to 75 and temperature in degrees Celsius ranges from 800 to 1700. The beads, fibers or film may be ground, post-pyrolysis, and combined with a non-coating binder to form extruded pellets, or alternatively the fibers may be woven, either before or after pre-treatment, to form a woven fiber sheet which is thereafter pyrolyzed to form a woven fiber adsorbent.

公开(公告)号：US09579627B2

公开(公告)日：2017-02-28

申请号：US14763855

申请日：2014-03-24

Applicant: Dow Global Technologies LLC

Inventor： Junqiang Liu ,  Mark K. Brayden ,  Edward M. Calverley ,  Steven R. Lakso ,  Yujun Liu ,  Marcos V. Martinez

IPC: C01B31/02 ,  B01J20/20 ,  C01B31/08 ,  B01J20/28 ,  B01J20/30 ,  C01B31/00 ,  C07C7/12 ,  B01D53/04 ,  B01D53/047

CPC classification number: B01J20/20 ,  B01D53/0462 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/116 ,  B01D2253/304 ,  B01D2257/7022 ,  B01J20/28042 ,  B01J20/28078 ,  B01J20/28085 ,  B01J20/28092 ,  B01J20/3007 ,  B01J20/3028 ,  B01J20/3042 ,  B01J20/3078 ,  C01B32/00 ,  C01B32/05 ,  C01B32/30 ,  C01P2004/54 ,  C01P2004/60 ,  C01P2006/16 ,  C01P2006/17 ,  C07C7/12

Abstract: A novel microporous carbon molecular sieve may be used as the basis for carbon adsorbent pellets that have discrete areas of carbonized binder and of carbonized precursor, macropores having an average pore diameter greater than or equal to 1 micrometer and a total macroporosity of at least 30 percent, both as measured by mercury porosimetry, and micropores that are capable of selectively admitting a C2-C3 alkene and excluding a C2-C3 alkane, and a total microporosity ranging from 10 percent to 30 percent. The pellets may be prepared by pyrolyzing a pellet structure comprising a carbon forming, non-melting binder and a non-porous gel type sulfonated polystyrene precursor at a temperature ranging from 500° C. to 1000° C., under an inert atmosphere and other conditions suitable to form the described pellets. The pellets are particularly useful in pressure swing and temperature swing adsorption processes to separate C2-C3 alkane/alkene mixtures.

Abstract translation: 可以使用新颖的微孔碳分子筛作为具有碳化粘合剂和碳化前体的离散区域的碳吸附剂颗粒的基础，大孔的平均孔径大于或等于1微米，总的大孔隙率至少为30％ ，通过水银孔率法测量，以及能够选择性地引入C2-C3烯烃并排除C2-C3烷烃的微孔，以及总微孔率为10％至30％的微孔。 颗粒可以通过在惰性气氛下在500℃至1000℃的温度下热解包含碳形成，非熔融粘合剂和无孔凝胶型磺化聚苯乙烯前体的颗粒结构来制备，其它 适于形成所述丸剂的条件。 颗粒在用于分离C 2 -C 3烷烃/烯烃混合物的压力摆动和变温吸附方法中特别有用。

公开(公告)号：US09169367B2

公开(公告)日：2015-10-27

申请号：US14422008

申请日：2013-09-18

Applicant: Dow Global Technologies LLC

Inventor： Scott T. Matteucci ,  Junqiang Liu ,  Ahmad Madkour ,  William J. Harris

IPC: C08J7/12 ,  B01D53/22 ,  B01D67/00 ,  B01D71/58 ,  B01D71/64 ,  C08J3/24

CPC classification number: C08J7/123 ,  B01D53/228 ,  B01D67/0006 ,  B01D67/0013 ,  B01D71/58 ,  B01D71/64 ,  B01D2323/08 ,  B01D2323/30 ,  B01D2323/34 ,  B01D2323/345 ,  C08J3/24 ,  C08J2375/04 ,  C08J2375/06

Abstract: The present invention appreciates that compounds comprising nitrogen-containing moieties that are at least divalent (e.g., urea, urethane, amide, etc.) can be reacted with azides using at least radiation energy to initiate the reaction between at least a portion of the compounds and the azides to form membranes that have surprisingly high selectivities for acid gases relative to nonpolar gases such as hydrocarbons. The membranes are also resistant to CO2 plasticization and have high acid gas flux characteristics. The resultant membranes can be extremely thin (e.g., 10 micrometers or less), which promotes high permeability for the acid gas and can translate into high productivity on a scaled-up, industrial level.

Abstract translation: 本发明意识到包含至少二价的含氮部分的化合物（例如尿素，氨基甲酸酯，酰胺等）可以与叠氮化物反应，至少使用辐射能来引发至少一部分化合物之间的反应 和叠氮化物以形成相对于非极性气体如烃类具有令人惊奇的高选择性的酸性气体的膜。 膜也耐二氧化碳增塑，具有较高的酸性气体通量特性。 所得到的膜可以非常薄（例如10微米或更小），其促进酸性气体的高渗透性，并且可以在放大的工业水平上转化为高生产率。

公开(公告)号：US20150218330A1

公开(公告)日：2015-08-06

申请号：US14422008

申请日：2013-09-18

Applicant: Dow Global Technologies LLC

Inventor： Scott T. Matteucci ,  Junqiang Liu ,  Ahmad Madkour ,  William J. Harris

IPC: C08J7/12 ,  B01D53/22 ,  B01D71/64 ,  C08J3/24 ,  B01D67/00

CPC classification number: C08J7/123 ,  B01D53/228 ,  B01D67/0006 ,  B01D67/0013 ,  B01D71/58 ,  B01D71/64 ,  B01D2323/08 ,  B01D2323/30 ,  B01D2323/34 ,  B01D2323/345 ,  C08J3/24 ,  C08J2375/04 ,  C08J2375/06

Abstract: The present invention appreciates that compounds comprising nitrogen-containing moieties that are at least divalent (e.g., urea, urethane, amide, etc.) can be reacted with azides using at least radiation energy to initiate the reaction between at least a portion of the compounds and the azides to form membranes that have surprisingly high selectivities for acid gases relative to nonpolar gases such as hydrocarbons. The membranes are also resistant to CO2 plasticization and have high acid gas flux characteristics. The resultant membranes can be extremely thin (e.g., 10 micrometers or less), which promotes high permeability for the acid gas and can translate into high productivity on a scaled-up, industrial level.

Abstract translation: 本发明意识到包含至少二价的含氮部分的化合物（例如尿素，氨基甲酸酯，酰胺等）可以与叠氮化物反应，至少使用辐射能来引发至少一部分化合物之间的反应 和叠氮化物以形成相对于非极性气体如烃类具有令人惊奇的高选择性的酸性气体的膜。 膜也耐二氧化碳增塑，具有较高的酸性气体通量特性。 所得到的膜可以非常薄（例如10微米或更小），其促进酸性气体的高渗透性，并且可以在放大的工业水平上转化为高生产率。