A kind of online purification method for Fischer-Tropsch synthesis and Fischer-Tropsch synthesis system thereof
A technology of Fischer-Tropsch synthesis and mixtures, which is applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, chemical/physical processes, etc. It can solve problems such as high equipment failure rate and easy blockage of pipelines, and achieve reduction of dosage and saving Cost, effect of improving oxidation efficiency
Active Publication Date: 2018-11-06
张征北
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[0005] In view of this, the present invention discloses an online purification method for Fischer-Tropsch synthesis and a Fischer-Tropsch synthesis system thereof, to at least solve the problems in the existing Fischer-Tropsch synthesis technology that pipelines are easily blocked, leading to high failure rates of equipment
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[0037] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0038] see figure 1 A Fischer-Tropsch synthesis system provided for this embodiment, the system includes: a preheater 1, a first-stage reactor 2, a molecular sieve 3, a heater 4, a second-stage reactor 5, and a first heat exchanger 6 connected in series in sequence , condensing cooler 7 and first gas-liquid separator 8;
[0039] Wherein, the gas output end of the first gas-liquid separator 8 i...
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The invention discloses an on-line purification method for Fischer-Tropsch synthesis and a Fischer-Tropsch synthesis system thereof. According to the on-line purification method, a three-addition-stage mode is adopted in the Fischer-Tropsch synthesis process, thereby implementing purification on the Fischer-Tropsch synthesis product and wastewater. The added organic pH regulator can lower the acidity in the product fuel, thereby creating the optimum reaction environment for the reagent addition at the second addition point, and regulating the pH value of the wastewater to the neutral or weakly-acidic condition which is suitable for the purifying aid; the added purifying aid can remove more than 90% of oil, phenols, amines, esters and other organic matters in the Fischer-Tropsch wastewater, thereby reducing the reagent addition quantity in the third stage, enhancing the oxidization efficiency, and creating the environment for cost saving; and the potassium permanganate complex agent added in the third stage can oxidize unreacted organic substances contained in the reagents added in the first and second stages, thereby avoiding the influence of organic matters in the reagents on the wastewater treatment. The Fischer-Tropsch synthesis system is suitable for the purification method.
Description
technical field [0001] The disclosure of the present invention relates to the technical field of Fischer-Tropsch synthesis, in particular to an online purification method for Fischer-Tropsch synthesis and a Fischer-Tropsch synthesis system thereof. Background technique [0002] my country's energy conditions are "rich in coal, poor in oil, and low in gas." Vigorously developing new types of coal chemical industry to replace traditional coal chemical industry with huge energy consumption, low utilization rate, serious waste, and serious environmental pollution is an important way to reduce enterprise costs, promote industrial upgrading, It is the only way to comply with national policies and promote the sustainable development of social economy. Fischer-Tropsch synthesis is one of the indirect coal liquefaction technologies, which can be referred to as FT reaction. It uses synthesis gas (CO and H 2 ) as a raw material to synthesize paraffin-based liquid fuels under catalysts ...
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IPC IPC(8): C10G2/00B01J19/00C02F9/04C10G67/02C10G45/00C02F1/66C02F1/72C02F101/30C02F101/34C02F101/38
CPCB01J19/0046C02F1/66C02F1/72C02F9/00C02F2101/30C02F2101/34C02F2101/345C02F2101/38C02F2301/08C10G2/00C10G45/00C10G67/02C10G2400/02C10G2400/04C10G2400/16
Inventor 张征北
Owner 张征北