The Fischer assay is a standardized laboratory test for determining the oil yield from oil shale to be expected from a conventional shale oil extraction. A 100 gram oil shale sample crushed to <2.38 mm is heated in a small aluminum retort to 500 °C (930 °F) at a rate of 12°C/min (22°F/min), and held at that temperature for 40 minutes. The distilled vapors of oil, gas, and water are passed through a condenser and cooled with ice water into a graduated centrifuge tube. The oil yields achieved by other technologies are often reported as a percentage of the Fischer Assay oil yield.
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| - Fischer assay (en)
- Méthode de titrage de Fischer (fr)
- Ensaio Fischer (pt)
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| - The Fischer assay is a standardized laboratory test for determining the oil yield from oil shale to be expected from a conventional shale oil extraction. A 100 gram oil shale sample crushed to <2.38 mm is heated in a small aluminum retort to 500 °C (930 °F) at a rate of 12°C/min (22°F/min), and held at that temperature for 40 minutes. The distilled vapors of oil, gas, and water are passed through a condenser and cooled with ice water into a graduated centrifuge tube. The oil yields achieved by other technologies are often reported as a percentage of the Fischer Assay oil yield. (en)
- La méthode de titrage de Fischer est une méthode normalisée utilisée en laboratoire pour déterminer le rendement en produits pétroliers que l'on peut attendre de l'extraction à partir des schistes bitumineux. La méthode de titrage de Fischer a été mise au point à l'origine lors des premières recherches sur le charbon, menées à basse température à l'aide de cornues par Franz Fischer et Hans Schrader. Le procédé a été ensuite adapté pour permettre d'évaluer les gisements de schistes bitumineux en 1949 par K. E. Stanfield et I. C. Frost. (fr)
- O Ensaio Fischer é um teste laboratorial padronizado para a determinação do teor de óleo do xisto betuminoso esperado de uma extração de xisto betuminoso convencional. Uma amostra de 100 gramas de xisto betuminoso triturada a <2.38 mm é aquecida em uma pequena retorta de alumínio a 500 °C, a uma taxa de 12°C/min, e mantida nessa temperatura por 40 minutos. O vapor destilado de óleo, gás e água, é passado em um condenador e resfriado com gelo em um tubo de centrífuga graduado. Os rendimentos de óleo obtidos por outras tecnologias são muitas vezes referidos como uma porcentagem do rendimento obtido pelo Ensaio Fischer. (pt)
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| - The Fischer assay is a standardized laboratory test for determining the oil yield from oil shale to be expected from a conventional shale oil extraction. A 100 gram oil shale sample crushed to <2.38 mm is heated in a small aluminum retort to 500 °C (930 °F) at a rate of 12°C/min (22°F/min), and held at that temperature for 40 minutes. The distilled vapors of oil, gas, and water are passed through a condenser and cooled with ice water into a graduated centrifuge tube. The oil yields achieved by other technologies are often reported as a percentage of the Fischer Assay oil yield. The original Fischer Assay test was developed in the early low temperature coal retorting research by Franz Joseph Emil Fischer and Hans Schrader. It was adapted for evaluating oil shale yields in 1949 by K. E. Stanfield and I. C. Frost. (en)
- La méthode de titrage de Fischer est une méthode normalisée utilisée en laboratoire pour déterminer le rendement en produits pétroliers que l'on peut attendre de l'extraction à partir des schistes bitumineux. Un échantillon de schiste bitumineux de 100 grammes broyé à < 2,38 mm est chauffé dans une petite cornue en aluminium à 500 °C à une vitesse de 12 °C/min et maintenu à cette température pendant 40 minutes. Les vapeurs distillées de pétrole, de gaz et d'eau sont passées à travers un condenseur et refroidies avec de l'eau glacée dans un tube à centrifuger gradué. Les rendements en pétrole obtenus par d'autres technologies sont souvent rapportés en pourcentage du rendement en huile du test Fischer. La méthode de titrage de Fischer a été mise au point à l'origine lors des premières recherches sur le charbon, menées à basse température à l'aide de cornues par Franz Fischer et Hans Schrader. Le procédé a été ensuite adapté pour permettre d'évaluer les gisements de schistes bitumineux en 1949 par K. E. Stanfield et I. C. Frost. (fr)
- O Ensaio Fischer é um teste laboratorial padronizado para a determinação do teor de óleo do xisto betuminoso esperado de uma extração de xisto betuminoso convencional. Uma amostra de 100 gramas de xisto betuminoso triturada a <2.38 mm é aquecida em uma pequena retorta de alumínio a 500 °C, a uma taxa de 12°C/min, e mantida nessa temperatura por 40 minutos. O vapor destilado de óleo, gás e água, é passado em um condenador e resfriado com gelo em um tubo de centrífuga graduado. Os rendimentos de óleo obtidos por outras tecnologias são muitas vezes referidos como uma porcentagem do rendimento obtido pelo Ensaio Fischer. O teste original do Ensaio Fischer foi desenvolvido na pesquisa das baixas temperaturas iniciais da retorta do carvão, por Franz Joseph Emil Fischer e Hans Schrader. O ensaio foi adaptado para a avaliação dos rendimentos do xisto betuminoso em 1949 por K. E. Stanfield e I. C. Frost. (pt)
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