METHOD FOR REDUCING FOULING IN CATALYTIC CRACKING

    公开(公告)号:CA3084708C

    公开(公告)日:2022-07-12

    申请号:CA3084708

    申请日:2018-12-20

    Applicant: NESTE OYJ

    Abstract: The present invention relates to a method for reducing fouling in catalytic cracking. The method comprises the steps of subjecting a recycled fossil- based feedstock to a heat treatment, evaporating the heat-treated feedstock, hydrotreating the resulting evaporation distillate and performing catalytic cracking of the hydrotreated distillate in the presence of a solid acid catalyst.

    Purificación de material lipídico a base de biomasa

    公开(公告)号:ES2912254T3

    公开(公告)日:2022-05-25

    申请号:ES18842424

    申请日:2018-12-28

    Applicant: NESTE OYJ

    Abstract: Método de purificación de material lipídico a base de biomasa, que comprende las etapas de (a) proporcionar una alimentación de material lipídico a base de biomasa; (c) secar la alimentación de material lipídico a base de biomasa; (d) retirar oxígeno de la alimentación de material lipídico a base de biomasa a presión reducida; (e) someter a tratamiento térmico la alimentación de material lipídico a base de biomasa a de 180 a 300ºC a presión reducida para solidificar al menos parte de las impurezas que contienen fósforo y/o metales comprendidas en el material lipídico a base de biomasa, eliminando por destilación simultáneamente al menos parte de los ácidos grasos libres y de los compuestos nitrogenados de bajo peso molecular comprendidos en el material lipídico a base de biomasa, para obtener al menos una fracción que comprende ácidos grasos libres y compuestos nitrogenados de bajo peso molecular, y material lipídico a base de biomasa sometido a tratamiento térmico que comprende impurezas que contienen fósforo y/o metales degradadas en forma sólida; y (f) retirar las impurezas que contienen fósforo y/o metales degradadas sólidas de la segunda fracción; para obtener material lipídico a base de biomasa purificado.

    Purification of biomass-based lipid material

    公开(公告)号:FI129178B

    公开(公告)日:2021-08-31

    申请号:FI20176184

    申请日:2017-12-29

    Applicant: NESTE OYJ

    Abstract: Provided herein is a method of purifying biomass-based lipid material (10), comprising the steps of (a) providing a feed of biomass-based lipid material (10); (c) optionally drying the feed of biomass-based lipid material (10); (d) removing oxygen (20) from the feed of biomass-based lipid material (10) under reduced pressure; (e) heat treating (30) the feed of biomass-based lipid material at 180 to 300°C under reduced pressure to solidify at least part of phosphorous and/or metal containing impurities (42) comprised in the biomass-based lipid material (10), simultaneously distilling (30) off at least part of free fatty acids and low molecular weight nitrogen compounds (32) comprised in the biomassbased lipid material (10), to obtain at least a fraction comprising free fatty acids and low molecular weight nitrogen compounds (32), and heat treated biomass-based lipid material (31) comprising degraded phosphorous and/or metal containing impurities (42) in solid form; and f) removing the solid degraded phosphorous and/or metal containing impurities (42) from the second fraction; to obtain purified biomass-based lipid material (41).

    Purification of recycled and renewable organic material

    公开(公告)号:FI128911B

    公开(公告)日:2021-03-15

    申请号:FI20185650

    申请日:2018-07-20

    Applicant: NESTE OYJ

    Abstract: Provided herein is a method of purifying a recycled or renewable organic material, wherein the recycled or renewable organic material comprises one or more impurities selected from a group consisting of silicon compounds, phosphorous, Cl and sterols, comprising the steps of (a) providing the recycled or renewable organic material; (b) optionally pre heat treating the recycled or renewable organic material at 180 to 325°C, and optionally adding acid before or after the pre heat treatment process, and optionally filtering the pre heat treated recycled or renewable organic material after the pre heat treatment; (c) heat treating the recycled or renewable organic material at 100 to 450°C, optionally in the presence of an adsorbent, optionally adding water before or during the heat treatment process, and optionally adding acid before or after the heat treatment process, and optionally filtering the heat treated recycled or renewable organic material after the heat treatment; (d) optionally evaporating volatile silicon compounds from the heat treated recycled or renewable organic material compounds thereby reducing the silicon content of the heat treated recycled or renewable organic material; (e) optionally thermally cracking the recycled or renewable organic material thereby reducing the oxygen and phosphorous content of the heat treated recycled or renewable organic material, and optionally removing volatiles from the thermally cracked recycled or renewable organic material, and optionally removing solids/precipitates from the recycled or renewable organic material; and (f) hydrotreating the heat treated recycled or renewable organic material in a presence of a hydrotreating catalyst; to obtain purified hydrotreated recycled or renewable organic material.

Patent Agency Ranking