Abstract:
Disclosed is a method of transporting C0 2 by ship for the purpose of storage in the ocean. The C0 2 is transported at a temperature between -25°C and +25°C, and under a pressure that is sufficiently high for the C0 2 to be in a liquid or supercritical state. The choice of temperature/pressure conditions for the C0 2 enables the transport of C0 2 one way to be effectively combined with transport of compressed natural gas (CNG) the other way. Ships can be used that have relatively cheap tubular containment equipment similar to the type normally used for CNG but with lower pressure and not subject to cyclic thermal and mechanical effects of pressurizing and depressurizing.
Abstract translation:公开了为了在海洋中储存的目的,用船运送CO 2的方法。 CO 2在-25℃和+ 25℃之间的温度下运输,并且在足够高的压力下使CO 2处于液体或超临界状态。 CO 2的温度/压力条件的选择使得CO 2的输送能够有效地与压缩天然气(CNG)的运输有效结合。 可以使用具有类似于通常用于CNG的类型的相对便宜的管状容纳设备的船舶,但是具有较低的压力并且不受加压和减压的循环热和机械效应的影响。
Abstract:
Disclosed is a process for the production of ammonia comprising a step wherein synthesis gas is formed by catalytic partial oxidation. Also disclosed is a process of producing urea, wherein ammonia is formed in a process involving a step of catalytic partial oxidation, and carbon dioxide formed in the same process is reacted with said ammonia so as to form urea.
Abstract:
Disclosed is a concrete tank for very large LNG tanks. The invention utilizes membrane technology in concrete structures that deviate from the standard cylindrical constructions. Typical concrete housings of the invention are a parallelepipedic structure, or an annular structure comprising two concentric walls. Both structures can be covered by a gabled or an arched roof, and avoid the size limitations imposed on cylindrical structures as a result of the size limitations inherent to concrete domes. The invention proposes also several ways to improve the available working height of LNG within such concrete structures of a given height.
Abstract:
Disclosed is a process for the preparation of polyamide 66 from an aqueous solution of hexamethylene diamine adipic acid salt (AH salt), wherein a solution of AH salt is first concentrated. The concentration is done in at least two steps, by at least two concentrators in series. The staged concentration is combined with subsequent polymerization in a plurality of reactors placed in parallel and operated in a batch mode. The process allows considerable energy- saving, by applying the steam from one concentrator as a heating medium in another concentrator.
Abstract:
The invention relates to a method for the preparation of a reinforced polymer composition which contains fibrils of a crystalline polyolefin having a weight-average molecular weight (Mw) of at least 5 x 10 kg/kmol, particles of the crystalline polyolefin being converted into fibrils in a matrix material which is immiscible with the crystalline polyolefin, in which method the crystalline polyolefin has a maximum stretch ratio of at least 20 and the conversion to fibrils takes place at a temperature below the melting point of the crystalline polyolefin. The invention also relates to reinforced polymer compositions obtainable by this method.
Abstract translation:本发明涉及一种制备增强聚合物组合物的方法,其包含重均分子量(Mw)至少为5×10 5 kg / kmol的结晶聚烯烃的原纤维,结晶聚烯烃的颗粒为 在与结晶聚烯烃不混溶的基质材料中转化成原纤维,其中结晶聚烯烃具有至少20的最大拉伸比,并且在低于结晶聚烯烃的熔点的温度下进行转化为原纤维。 本发明还涉及通过该方法可获得的增强聚合物组合物。
Abstract:
The invention relates to a polymer composition consisting of a styrene-maleic anhydride copolymer with a molecular weight of 50,000 - 200,000 g/mole and 1-50 % (wt) of a reinforcing fibre, in which polymer composition the styrene-maleic anhydride copolymer has a maleic anhydride content of 22-40 % (wt) and in which the ratio between the weight percentage of glass fibre, calculated on the whole polymer composition, and the maleic anhydride content, calculated on the styrene-maleic anhydride copolymer, is 0.62 to 1.40.
Abstract:
The invention relates to a multicomponent system based on an oxazoline and a phosphorus-containing compound. The phosphorus-containing compound is a compound according to formula (ABO)PO(OH)2 or (ABO)2PO(OH) or a mixture based on these compounds, A being an acid residue corresponding to acrylic acid, methacrylic acid or crotonic acid and B being corresponding to a branched or non-branched divalent aliphatic alcohol with 2-6 carbon atoms. Preferably, the phosphorus-containing compound is the phosphate ester of hydroxyethylmethacrylate (PEMA). The invention is particularly well-suited for use in reaction injection moulding (RIM) systems.
Abstract:
Polytetramethylene adipamide resin compositions with high-melt stability. The high-melt stability without loss of mechanical properties is obtained by addition of 0,01 to 3 parts by weight of at least one compound selected out of the groups of aminosilanes, epoxysilanes and vinylsilanes to 100 parts by weight of the polyamide.
Abstract:
The disclosure pertains to a nitric acid production process and plant. The process involves supplying an oxygen gas stream and ammonia feedstock to the burner section. In embodiments, a part of the tail gas stream (4) is heated in a tail gas heating section (7) and supplied to the burner section (1).
Abstract:
Embodiments of the disclosure pertain to a chemical reactor comprising a mixing zone comprising first static mixer and a second static mixer both arranged in shell of the reactor, wherein the second static mixer is positioned further from said first inlet than said first static mixer, wherein the second static mixer is adapted for more intimate mixing of fluids in the reaction mixture than the first static mixer.