Method for revamping a conventional mineral oils refinery to a biorefinery

    公开(公告)号:US09845432B2

    公开(公告)日:2017-12-19

    申请号:US14425501

    申请日:2012-09-04

    摘要: The invention relates to a method for revamping a conventional refinery of mineral oils into a biorefinery, characterized by a production scheme which allows the treatment of raw materials of a biological origin (vegetable oils, animal fats, exhausted cooking oils) for the production of biofuels, prevalently high-quality biodiesel. This method allows the re-use of existing plants, allowing, in particular, the revamping of a refinery containing a system comprising two hydrodesulfurization units, U1 and U2, into a biorefinery containing a production unit of hydrocarbon fractions from mixtures of a biological origin containing fatty acid esters by means of their hydrodeoxygenation and isomerization, wherein each of the hydrodesulfurization units U1 and U2 comprises: a hydrodesulfurization reactor, (A1) for the unit U1 and (A2) for the unit U2, wherein said reactor contains a hydrodesulfurization catalyst; one or more heat exchangers between the feedstock and effluent of the reactor; a heating system of the feedstock upstream of the reactor; an acid gas treatment unit downstream of the reactor, containing an absorbent (B) for H2S, said unit being called T1 in the unit U1 and T2 in the unit U2, and wherein said method comprises: installing a line L between the units U1 and U2 which connects them in series; installing a recycling line of the product for the unit U1 and possibly for the unit U2, substituting the hydrodesulfurization catalyst in the reactor A1 with a hydrodeoxygenation catalyst; substituting the hydrodesulfurization catalyst in the reactor A2 with an isomerization catalyst; installing a y-pass line X of the acid gas treatment unit T2 of the unit U2; substituting the absorbent (B) in the acid gas treatment unit T1 with a specific absorbent for C02 and H2S. The operative configuration obtained with the method, object of the present invention, also leads to a substantial reduction in emissions of pollutants into the atmosphere, with respect to the original operative mode. The invention also relates to the transformation unit of mixtures of a biological origin obtained with said conversion method and particularly hydrodeoxygenation and isomerization processes.

    PROCESS FOR STABILIZING THE PERFORMANCES OF A CATALYST FOR FISCHER TROPSCH REACTION
    7.
    发明申请
    PROCESS FOR STABILIZING THE PERFORMANCES OF A CATALYST FOR FISCHER TROPSCH REACTION 有权
    用于稳定FISCHER TROPSCH反应的催化剂性能的方法

    公开(公告)号:US20110039953A1

    公开(公告)日:2011-02-17

    申请号:US12811383

    申请日:2008-12-29

    IPC分类号: C07C1/06

    摘要: Process for maintaining the stability of performances of a catalyst for Fischer-Tropsch reaction, performed in a slurry bubble column reactor under a triphase system which comprises gradually increasing the PH2O/PH2 ratio and the PH2O/Z ratio, during the start-up phase, with Z=P0·(T/T1)4·e−(K2/(t·K3)) from 0.4 to 0.8, for a period of time not shorter than 100-150 hrs and not longer than 200-300 hours and, at the end of the start-up phase, maintaining the PH2O/PH2 and PH2O/Z ratios substantially equal to or lower than 0.8.

    摘要翻译: 用于维持费 - 托反应催化剂性能的稳定性的方法,其在三相体系中的淤浆鼓泡塔反应器中进行,其包括在起动阶段逐渐增加PH 2 O / PH 2比和PH 2 O / Z比, Z = P0·(T / T1)4·e-(K2 /(t·K3))为0.4〜0.8,时间不低于100-150小时,不大于200-300小时, 在启动阶段结束时,保持PH2O / PH2和PH2O / Z比基本上等于或低于0.8。

    METHOD FOR REVAMPING A CONVENTIONAL MINERAL OILS REFINERY TO A BIOREFINERY

    公开(公告)号:US20150353841A1

    公开(公告)日:2015-12-10

    申请号:US14425501

    申请日:2012-09-04

    IPC分类号: C10G3/00 C10L1/04 C10G45/58

    摘要: The invention relates to a method for revamping a conventional refinery of mineral oils into a biorefinery, characterized by a production scheme which allows the treatment of raw materials of a biological origin (vegetable oils, animal fats, exhausted cooking oils) for the production of biofuels, prevalently high-quality biodiesel. This method allows the re-use of existing plants, allowing, in particular, the revamping of a refinery containing a system comprising two hydrodesulfurization units, U1 and U2, into a biorefinery containing a production unit of hydrocarbon fractions from mixtures of a biological origin containing fatty acid esters by means of their hydrodeoxygenation and isomerization, wherein each of the hydrodesulfurization units U1 and U2 comprises: a hydrodesulfurization reactor, (A1) for the unit U1 and (A2) for the unit U2, wherein said reactor contains a hydrodesulfurization catalyst; one or more heat exchangers between the feedstock and effluent of the reactor; a heating system of the feedstock upstream of the reactor; an acid gas treatment unit downstream of the reactor, containing an absorbent (B) for H2S, said unit being called T1 in the unit U1 and T2 in the unit U2, and wherein said method comprises: installing a line L between the units U1 and U2 which connects them in series; installing a recycling line of the product for the unit U1 and possibly for the unit U2, substituting the hydrodesulfurization catalyst in the reactor A1 with a hydrodeoxygenation catalyst; substituting the hydrodesulfurization catalyst in the reactor A2 with an isomerization catalyst; installing a y-pass line X of the acid gas treatment unit T2 of the unit U2; substituting the absorbent (B) in the acid gas treatment unit T1 with a specific absorbent for C02 and H2S. The operative configuration obtained with the method, object of the present invention, also leads to a substantial reduction in emissions of pollutants into the atmosphere, with respect to the original operative mode. The invention also relates to the transformation unit of mixtures of a biological origin obtained with said conversion method and particularly hydrodeoxygenation and isomerization processes.

    PROCESS FOR RECOVERING METALS FROM A STREAM RICH IN HYDROCARBONS AND CARBONACEOUS RESIDUES
    9.
    发明申请
    PROCESS FOR RECOVERING METALS FROM A STREAM RICH IN HYDROCARBONS AND CARBONACEOUS RESIDUES 有权
    从碳氢化合物和碳氢化合物中回收金属的方法

    公开(公告)号:US20120279358A1

    公开(公告)日:2012-11-08

    申请号:US13516045

    申请日:2010-12-13

    IPC分类号: C22B3/04

    摘要: A process for recovering metals from a stream rich in hydrocarbons and carbonaceous residues by means of a treatment section characterized in that it comprises the following steps: sending said stream to an extraction by mixing said stream with a suitable hydrophilizing agent, i.e. being capable of removing the hydrophobic qualities of said stream; sending the mixture consisting of said stream and said hydrophilizing agent to separation, separating a liquid phase containing most of the hydrophilizing agent and hydrocarbons dissolved from a “solid” phase; preferably subjecting the “solid” phase separated to drying effected at a maximum temperature of 3500C in order to remove the medium-light hydrocarbon components from the “solid” phase; sending the “solid” phase separated, preferably dried, to leaching with an alkaline solution in the presence of air and/or oxygen and possibly in the presence of an emulsifying agent or its precursor; sending the leached mixture to separation, separating the solid residue from the liquor.

    摘要翻译: 一种通过处理部分从富含烃和碳质残余物的物流中回收金属的方法,其特征在于其包括以下步骤:将所述物流与合适的亲水剂混合,将所述物流与所述物流混合,即能够除去 所述流的疏水性; 将由所述流和所述亲水化物组成的混合物送入分离,分离含有大部分亲水剂的液相和从固相中溶解的烃; 优选在350℃的最高温度下对分离的固相进行干燥以从固相中除去中轻烃组分; 在空气和/或氧气存在下并且可能在乳化剂或其前体的存在下,将分离的,优选干燥的固相发送到碱性溶液中浸出; 将浸出的混合物送入分离,将固体残余物与液体分离。