41results about How to "High chlorine capacity" patented technology

The invention discloses a dechlorination agent and a preparation method thereof. The dechlorination agent is prepared from the following materials: 15-70wt% of carrier, 15-60wt% of active components, 1-10wt% of a pore-forming agent, 1-5wt% of an extrusion aid and 2-10wt% of a binder, wherein the carrier is at least one of weak acid salt, kaolin, pseudo-boehmite or Al2O3. The preparation method comprises the steps of mixing the materials, adding water, mixing, kneading, extruding, drying and calcining. The dechlorination agent has the advantages of high adsorption efficiency against high-concentration or low-concentration HCl at normal temperature, high dechlorination precision, high chlorine content of above 30% and a certain adsorption effect against organic chlorides; chemical reaction adsorption is adopted for adsorption against HCl, the adsorption is performed at normal temperature and normal pressure, energy consumption is not required, and the absorbed HCl and the active component in the dechlorination agent perform reaction to form a stable chemical substance to exist in an adsorber bed layer; and the dechlorination agent further has the advantages of low toxicity, high stability, easiness in filling and unloading, and no secondary pollution.

The invention provides a normal-temperature dechlorination agent and a preparation method thereof. The normal-temperature dechlorination agent comprises a carrier, an active component MOF material supported by the carrier, and an adhesive agent calcium hydroxide; the MOF material is prepared by dissolving an organic ligand and metal ions in a solvent through a hydrothermal reaction method; the organic ligand is selected from substituted or unsubstituted aromatic polycarboxylic acids containing one or more rings, and from substituted or unsubstituted aromatic polycarboxylic acids containing at least a hetero atom and containing one or more rings; and the metal ligand is most preferably selected from nitrates or chlorides. The normal-temperature dechlorination agent has relatively large specific surface area, simple in synthetic technology, superior in performances and wide in application scope.

The present invention provides a medium-high temperature dechlorination agent for removing hydrogen chloride gas and a method for making the same. The dechlorination agent is made of active ingredients, a carrier, an auxiliary agent and an adhesive. The active ingredient is obtained by fully mixing glucose with at least one selected from the group consisting of calcium nitrate, magnesium nitrate, zinc nitrate and sodium bicarbonate. The carrier and the auxiliary agents are ZSM-5 or a molecular sieve. The adhesive is methyl cellulose. The preparation method comprises: blending the active ingredients; adding the aqueous solution of the active ingredients into the pretreated carrier and auxiliary agent, in a dropwise manner; rotating; heating; drying; baking; forming; and granulating to obtain the dechlorination agent. The dechlorination agent can remove hydrogen chloride gas of exhaust gas effectively and deeply at a temperature of 423-1073 K, with a breakthrough chlorine capacity of 63% or more.

The invention provides a high-precision liquid-phase dechlorination agent, which is composed of the following components: 5-20wt% of CuO, 5-10wt% of CaO, 4-8wt% of KOH, and the balance is modified activated carbon; Modified activated carbon is activated carbon that has been acidified and oxidized. The dechlorination agent of the present invention uses modified activated carbon as a carrier, which can not only optimize the pore structure of activated carbon, increase the pore volume and specific surface area, but also increase the content of oxygen-containing functional groups on the surface of activated carbon, improve the polarity of the carrier, and enhance the carrier and activity. The combination degree between components reduces the loss of active components, and because hydrogen chloride is a polar molecule, it is easier to be stably adsorbed on the surface of modified activated carbon that also has a higher polarity, which is conducive to improving the dechlorination accuracy. Simultaneously, the synergistic effect of above-mentioned three active substances in the dechlorination agent of the present invention has increased the reactivity of dechlorination agent and hydrogen chloride, has realized the maximization of chlorine capacity of dechlorination agent effectively, makes the liquid phase dechlorination agent of the present invention The chlorine capacity is as high as 16%, and the dechlorination accuracy is as low as 0.5ppm.

The invention provides a low temperature liquid phase de-chlorinating agent, which is composed of a component A and a component B. The component B is adsorbed on the component A. The component A is active carbon, which has been modified by a modifier. The component B is sodium acetate or sodium citrate. The mass ratio of the component A to the component B is (4-9):1, and the modifier accounts for20 to 35 wt% of the component A, and the balance being active carbon. The invention also provides a method for preparing the low temperature liquid phase de-chlorinating agent and an application of the de-chlorinating agent in catalytic reforming to generate de-chlorinated oil. The provided de-chlorinating agent perfectly solves the problem that in the prior art, the organic chlorine removing effect of a de-chlorinating agent is not good, and is capable of converting organic chlorine into inorganic chlorine and absorbing inorganic chlorine.

A gas dechlorination agent, comprising 10-60% by mass of alumina, 5-60% by mass of modifier, 1-15% by mass of zeolite and 5-80% by mass of alkaline earth metal oxide, the modified The agent is clay or bentonite. The dechlorination agent can effectively remove hydrogen chloride in gas at high temperature, and has a high breakthrough chlorine capacity.