ADDITIVELY MANUFACTURING STRUCTURES COMPRISING CARBON

    公开(公告)号:US20210053831A1

    公开(公告)日:2021-02-25

    申请号:US17080566

    申请日:2020-10-26

    Applicant: Seerstone LLC

    Abstract: Methods of forming solid carbon products include disposing a plurality of nanotubes in a press, and applying heat to the plurality of carbon nanotubes to form the solid carbon product. Further processing may include sintering the solid carbon product to form a plurality of covalently bonded carbon nanotubes. The solid carbon product includes a plurality of voids between the carbon nanotubes having a median minimum dimension of less than about 100 nm. Some methods include compressing a material comprising carbon nanotubes, heating the compressed material in a non-reactive environment to form covalent bonds between adjacent carbon nanotubes to form a sintered solid carbon product, and cooling the sintered solid carbon product to a temperature at which carbon of the carbon nanotubes do not oxidize prior to removing the resulting solid carbon product for further processing, shipping, or use.

    Apparatus and System for Forming Solid Carbon Products

    公开(公告)号:US20190262792A1

    公开(公告)日:2019-08-29

    申请号:US16320408

    申请日:2017-07-28

    Applicant: Seerstone LLC

    Inventor: Dallas B. NOYES

    Abstract: A reaction apparatus for use in solid carbon production includes a reactor shell defining a reactor inlet and a reactor outlet. Concentric cylinders or substantially parallel plates of catalytic material are disposed within the reactor shell and are structured and adapted to expose at least one contact surface to gaseous reactants. Another apparatus includes a removable cartridge comprising a plurality of substantially parallel plates of catalytic material disposed within the reactor shell. A system for use in carbon nanotube production may include any such reactor and a solids recovery means for removing carbon nanotubes from the reactor.

    Solid Carbon Nanotube Forests and Methods for Producing Solid Carbon Nanotube Forests

    公开(公告)号:US20190152782A1

    公开(公告)日:2019-05-23

    申请号:US16320640

    申请日:2016-07-28

    Applicant: Seerstone LLC

    Abstract: A method of producing forests of fibrous solid carbon includes providing a catalyst material over a substrate, forming the catalyst material into catalyst nanoparticles, and reacting carbon monoxide with hydrogen in the presence of the catalyst nanoparticles to form forests of fibrous solid carbon attached to the catalyst nanoparticles. A composition of matter includes an inert material disposed upon a substrate, a plurality of nanoparticles of catalyst material upon the inert material, and a plurality of carbon nanotubes upon the nanoparticles. Some methods of producing a forest of carbon nanotubes include preparing a catalyst surface by depositing an inert material onto stainless steel, and depositing iron onto the inert material. The catalyst surface is placed into a furnace chamber, and the furnace chamber is heated. A mixture of hydrogen and carbon monoxide is provided into the furnace chamber

    Reactors, systems, and methods for forming solid products

    公开(公告)号:US10086349B2

    公开(公告)日:2018-10-02

    申请号:US14775913

    申请日:2014-03-12

    Applicant: Seerstone LLC

    Inventor: Dallas B. Noyes

    Abstract: A reactor includes a vessel, a gas inlet, a solid outlet, a catalyst support configured to at least partially retain a catalyst material and allow a tail gas to pass therethrough, and a tail gas outlet. The gas inlet is in fluid communication with the solid outlet. A system for producing a solid product includes a reactor, a compressor, a heater, a make-up reactive gas inlet, and a solids discharge means for removing the solid product from the solid outlet of the reactor. Methods of forming solid products include providing a catalyst material in a vessel having a porous catalyst support, delivering a reactive gas to the vessel, reacting the reactive gas to form a solid product and a tail gas in the vessel, passing the tail gas through a portion of the catalyst material to separate the solid product from the tail gas, and removing the solid product.

    METHODS FOR USING METAL CATALYSTS IN CARBON OXIDE CATALYTIC CONVERTERS
    8.
    发明申请
    METHODS FOR USING METAL CATALYSTS IN CARBON OXIDE CATALYTIC CONVERTERS 审中-公开
    在碳氧化物催化转化器中使用金属催化剂的方法

    公开(公告)号:US20150078981A1

    公开(公告)日:2015-03-19

    申请号:US14389298

    申请日:2013-03-15

    Applicant: Seerstone LLC

    Inventor: Dallas B. Noyes

    Abstract: A method of reducing a gaseous carbon oxide includes reacting a carbon oxide with a gaseous reducing agent in the presence of a steel catalyst. The reaction proceeds under conditions adapted to produce solid carbon of various allotropes and morphologies the selective formation of which can be controlled by means of controlling reaction gas composition and reaction conditions including temperature and pressure. A method for utilizing a steel catalyst for reducing carbon oxides includes placing the steel catalyst in a suitable reactor and flowing reaction gases comprising a carbon oxide with at least one gaseous reducing agent through the reactor where, in the presence of the steel catalyst, at least a portion of the carbon in the carbon oxide is converted to solid carbon and a tail gas mixture containing water vapor.

    Abstract translation: 一种还原气态碳氧化物的方法包括在钢催化剂存在下使碳氧化物与气态还原剂反应。 反应在适于产生各种同素异形体和形态的固体碳的条件下进行,其选择性形成可以通过控制反应气体组成和包括温度和压力的反应条件来控制。 用于还原碳氧化物的钢催化剂的方法包括将钢催化剂放置在合适的反应器中,并将包含碳氧化物的反应气体与至少一种气态还原剂一起流过反应器,其中在钢催化剂存在下至少 一部分碳氧化物中的碳转化为固体碳和含有水蒸气的尾气混合物。

    CARBON NANOTUBES HAVING A BIMODAL SIZE DISTRIBUTION
    9.
    发明申请
    CARBON NANOTUBES HAVING A BIMODAL SIZE DISTRIBUTION 有权
    具有双重尺寸分布的碳纳米管

    公开(公告)号:US20150064097A1

    公开(公告)日:2015-03-05

    申请号:US14389015

    申请日:2013-03-15

    Applicant: Seerstone LLC

    Inventor: Dallas B. Noyes

    CPC classification number: C01B32/16 C01P2004/53

    Abstract: A composition comprising a mixture of carbon nanotubes having a bi-modal size distribution are produced by reducing carbon oxides with a reducing agent in the presence of a catalyst. The resulting mixture of nanotubes include a primary population of multiwall carbon nanotubes having characteristic diameters greater than 40 nanometers, and a secondary population of what are apparently single wall nanotubes with characteristic diameters of less than 30 nanometers. The resulting mixture may also contain one or more other allotropes and morphologies of carbon in various proportions. The mixture of carbon nanotubes has specific apparently uncommon properties, including unusual resistivity and density

    Abstract translation: 包含具有双峰尺寸分布的碳纳米管的混合物的组合物通过在催化剂存在下用还原剂还原碳氧化物来制备。 所得到的纳米管混合物包括具有大于40纳米特征直径的多壁碳纳米管的主要群体,以及明显具有特征直径小于30纳米的单壁纳米管的二次群体。 所得到的混合物还可以含有一种或多种不同比例的碳的其他同素异形体和形态。 碳纳米管的混合物具有明显的不常见的特性,包括异常的电阻率和密度

    METHOD FOR PRODUCING SOLID CARBON BY REDUCING CARBON OXIDES
    10.
    发明申请
    METHOD FOR PRODUCING SOLID CARBON BY REDUCING CARBON OXIDES 有权
    通过减少碳氧化物生产固体碳的方法

    公开(公告)号:US20140141248A1

    公开(公告)日:2014-05-22

    申请号:US14163179

    申请日:2014-01-24

    Applicant: SEERSTONE LLC

    Inventor: Dallas B. Noyes

    Abstract: A method for production of various morphologies of solid carbon product by reducing carbon oxides with a reducing agent in the presence of a catalyst. The carbon oxides are typically either carbon monoxide or carbon dioxide. The reducing agent is typically either a hydrocarbon gas or hydrogen. The desired morphology of the solid carbon product may be controlled by the specific catalysts, reaction conditions, and optional additives used in the reduction reaction. The resulting solid carbon products have many commercial applications.

    Abstract translation: 一种通过在催化剂存在下用还原剂还原碳氧化物来生产固体碳产物的各种形态的方法。 碳氧化物通常是一氧化碳或二氧化碳。 还原剂通常是烃气体或氢气。 固体碳产物的所需形态可以通过特定的催化剂,反应条件和还原反应中使用的任选的添加剂来控制。 所得固体碳产品具有许多商业应用。

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