A process for extracting a condensable vapour from a supplied gas, comprising the steps of: i) cooling the supplied gas at a first condensing surface; wherein said first condensing surface is temperature controlled to a first temperature for condensing a portion of the condensable vapour in the supplied gas, such that the supplied gas is divided into a preliminary condensed fraction and a process gas; while removing the preliminary condensed fraction at the first condensing surface with mechanical scraping means (56, 66); and ii) cooling the process gas at a second condensing surface; wherein at the second condensing surface is temperature controlled to a second temperature for condensing a further proportion of the remaining condensable vapour in the process gas, such that the process gas is divided into a subsequent condensed fraction and a product gas; while removing the subsequent condensed fraction at the condensing surface with mechanical scraping means (56, 66); wherein the preliminary condensed fraction has a higher dew point temperature than the subsequent condensed fraction; and wherein the preliminary condensed fraction has a higher viscosity than the subsequent condensed fraction at any given temperature below the second temperature, and wherein the process further comprises the steps of: a) collecting the removed subsequent condensed fraction at a first location wherein said first location is temperature controlled to the second temperature; and b) conveying via a thermally controlled conveying means the subsequent condensed fraction from the first location to a second location, wherein said second location is temperature controlled to the first temperature for heating and/or vaporizing said subsequent condensed fraction to form a heated subsequent fraction; and c) collecting the removed preliminary condensed fraction at the second location; d) conveying via the thermally controlled conveying means the preliminary condensed fraction and the heated subsequent fraction from the second location to a third location. i) cooling the supplied gas at a first condensing surface; wherein said first condensing surface is temperature controlled to a first temperature for condensing a portion of the condensable vapour in the supplied gas, such that the supplied gas is divided into a preliminary condensed fraction and a process gas; while removing the preliminary condensed fraction at the first condensing surface with mechanical scraping means (56, 66); and ii) cooling the process gas at a second condensing surface; wherein at the second condensing surface is temperature controlled to a second temperature for condensing a further proportion of the remaining condensable vapour in the process gas, such that the process gas is divided into a subsequent condensed fraction and a product gas; while removing the subsequent condensed fraction at the condensing surface with mechanical scraping means (56, 66); a) collecting the removed subsequent condensed fraction at a first location wherein said first location is temperature controlled to the second temperature; and b) conveying via a thermally controlled conveying means the subsequent condensed fraction from the first location to a second location, wherein said second location is temperature controlled to the first temperature for heating and/or vaporizing said subsequent condensed fraction to form a heated subsequent fraction; and c) collecting the removed preliminary condensed fraction at the second location; d) conveying via the thermally controlled conveying means the preliminary condensed fraction and the heated subsequent fraction from the second location to a third location.