Method of preparing hydrocarbon liquid fuel oil by algal polysaccharide liquefaction
A technology of seaweed polysaccharides and hydrocarbon liquids, applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, etc., to achieve the effects of short growth cycle, high calorific value, and large biomass
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Embodiment 1
[0015] In this example, 25g of dried and pulverized Enteromorpha polysaccharide powder extracted from Enteromorpha, added with 5g of water, mixed evenly and then compacted into a steel miniature airtight reaction kettle, without additional gasification medium or preheating gas during the reaction Under supplementary conditions, the temperature was raised to 350°C at a rate of 60°C / min and then kept for 20 minutes to end the reaction. After cooling naturally in the air, the solid-liquid product obtained from the reaction was distilled at atmospheric pressure and collected between 60-500°C. After separating the water in the distillate, the hydrocarbon liquid fuel is prepared. The calorific value of the prepared hydrocarbon liquid fuel is 42.31MJ / kg, the H / C molar ratio is 1.67, and the oxygen content is 5.4%;
[0016] The GC-MS total ion current chromatogram of the hydrocarbon liquid fuel oil that present embodiment prepares is as follows figure 1 As shown, through the results o...
Embodiment 2
[0018] In this example, add 25g of dried and pulverized Enteromorpha polysaccharide powder extracted from Enteromorpha to 5g of water, mix it uniformly and then compact it into a steel miniature airtight reaction kettle, without additional gasification medium or preheating gas supplementation during the reaction process Under certain conditions, the temperature was raised to 400°C at a heating rate of 80°C / min and then kept for 15 minutes to end the reaction. After cooling naturally in the air, the solid-liquid product obtained by the reaction was distilled at atmospheric pressure, and the solid-liquid product obtained from the reaction was collected at 60-500°C. Distillate, after separating the water in the distillate, the prepared hydrocarbon liquid fuel oil has a calorific value of 43.68MJ / kg, a H / C molar ratio of 1.66, and an oxygen content of 3.8%.
Embodiment 3
[0020] In this example, add 25g of dried and pulverized sodium alginate powder extracted from kelp to 2.5g of water, mix evenly and then compact it into a steel miniature airtight reaction kettle. No additional gasification medium or preheating gas is added during the reaction process. Under certain conditions, the temperature was raised to 400°C at a heating rate of 80°C / min and kept for 15 minutes to end the reaction. After cooling naturally in the air, the solid-liquid product obtained from the reaction was distilled at atmospheric pressure, and the fraction between 60-500°C was collected. , After separating the water in the distillate, the prepared hydrocarbon liquid fuel oil has a calorific value of 42.25MJ / kg, a H / C molar ratio of 1.59, and an oxygen content of 3.4%.
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