Practical methods for diesel decolorization and odor removal

Technology for rapid decolorization and removal of monosodium glutamate from dark and foul-smelling diesel. At present, some large and medium-sized refineries as well as small refineries in China use waste plastics, waste tires, and used engine oil to produce gasoline and diesel by oxidizing deteriorated diesel, coal tar, slack oil, and crude benzene. During its production process, due to unreasonable manufacturing techniques and issues with the raw materials, the color and odor of the final product do not meet the customer’s requirements; furthermore, the decolorization of the oil during the later stages of refining, along with oxidation and deterioration as a result of long-term storage, result in it failing to meet the **standards**. The various oils mentioned above must be processed through decolorization and deodorization to remove hydrogen sulfide odors as well as oxidation residues and gums, thereby turning dark and turbid oils into clear and transparent ones. This improves the appearance and transparency of the oils, eliminates unwanted odors, enhances safety and stability, meets usage standards, and increases their economic value. Features of the new process: This technology eliminates the complex traditional processes involving acid, alkali, and clay for decolorization and deodorization. No heating is required; additives are simply added, followed by mixing, precipitation, and filtration to complete the process. It combines impurity removal, odor elimination, decolorization, and separation in one process – simply add the raw material to the oil tank to complete it. Instead of separating and removing impurities in multiple steps as before, this method addresses everything in one go, **reducing investment costs and shortening the processing time and duration. Its speed is ten times that of the old process, while the cost is one-fifth of that of the old method. Black and odorous diesel is placed in a tank, 2% of a refining solution is added and mixed; after it settles, the separated layers are removed. The diesel produced in this way meets **fuel standards in terms of acid value and color, and it does not change color or deteriorate over time, offering good stability. Cost analysis: The cost of chemical raw materials used per ton ranges from 20 to 35 yuan (the cost of these materials varies depending on the type of oil). In addition, electricity costs and other expenses are also taken into account based on actual conditions. 　　 This project can be launched with an investment of just a few thousand yuan; the raw materials are easily available, it features high efficiency, short production cycles, advanced technology, and is energy-saving and pollution-free. The technical service fee is 8,400 yuan, which includes the provision of a complete set of technical formulas and processes. Those who come for testing are requested to bring dirty diesel or gasoline; tests are available free of charge! Note: If any organization or individual manages to surpass our company’s technical capabilities, we are willing to offer a reward of 100,000 yuan. If there are any issues during the process, you can call for consultation. Beijing Linkexingbang Technology Development Co., Ltd. Address: Room 1206, Zhongtian Building, No. 5 Xiaoying Road, Chaoyang District, Beijing. Those who are interested in our company’s technologies are welcome to contact us for business discussions. Phone: 010-51313061; Fax: 010-51313062. Email: lkxbzhl@126.com. Consultation QQ numbers: 422150442 and 763967024. May we become partners in business! ! ! Website: www.chaiyou.com

Diesel decolorizing agent [CN-TSJ201 Decolorizing Agent] I. Product description: As is well known, due to the limitations in the processing equipment available in small refineries, the color of the diesel produced there tends to darken over a few days. The colority of diesel is an important quality indicator for it, as it directly affects the quality and price of diesel. The decolorization of black diesel has always been a common challenge in the diesel refining industry. Currently, the decolorization of diesel mainly relies on acid-base refining methods (sulfuric acid, sodium hydroxide). Since sulfuric acid is a strong inorganic acid, its addition to the oil directly deteriorates the quality of the diesel, reduces the yield of diesel, and the acidic residues resulting from this treatment cause secondary pollution. The synthesized CN-TSJ201 decolorizing agent is in the form of white fine granular crystals with excellent fluidity ； It is an amphoteric compound produced with alumina and magnesium oxide as its main components, and it has the functions of decolorization, deacidification, deodorization, as well as the absorption of potassium ions and acting as a filtration medium. It is used in the final refining step of the diesel production process (at the outlet where the diesel flows out). A certain proportion of black diesel, after being adsorbed and refined by CN-TSJ201, becomes light yellow and transparent. Its working principle is to filter out melanin ions by having the adsorbent bind with them to form larger-sized complex salt crystals, which have very low solubility in diesel; at the same time, its porous structure enables effective color removal and deodorization. Used for the decolorization of dark diesel, this product features a simple production process, low equipment investment, low costs, and excellent results. It represents a new generation of high-tech solutions for dark diesel decolorization, and is highly favored by those in the diesel refining industry! II. Technical data: Aluminum oxide – 35–40%; bulk density – 500 g/L. Magnesium oxide – 13–15%; average pore size – 90±10 Å (8–10 nm); specific surface area – approximately 400 m²/g. pH value – 8–11. Pore capacity – 0.8–1.1 ml/g. Appearance – white, fine granular crystals. III. Applications of the decolorizing agent (decolorizing and deodorizing agent): It is suitable for decolorizing and deodorizing dark, odorous diesel produced through catalytic and cracking processes in small and medium-sized refineries; it can be used for this purpose in the later stages of refining processes as well. It is effective for decolorizing dark, odorous diesel obtained through single-fermenter distillation (traditional oil refining methods). It can also be used to decolorize diesel that has oxidized and turned black in storage tanks within refineries or oil companies. Additionally, it is suitable for decolorizing and deodorizing lubricating oils and dark base oils, especially waste engine oil and diesel produced through processes that result in dark, odorous products. IV. Characteristics of the decolorizing agent: 1. Low consumption, pure taste of the oil, and color intensity meeting national standards. The oil cleaned with a decolorizing deodorizing agent has a **lower sedimentation rate** compared to oil cleaned using traditional methods. The color of refined diesel does not fade; in fact, the longer it is stored, the clearer and brighter its hue becomes, achieving a particularly clear and transparent appearance. The taste of the oil is also more pure. 2. Low cost and wide range of applications. Due to less slag production, the cost is correspondingly reduced. This agent can not only be used to clean oils produced from crude oil refining, but also to treat lubricants, first-stage and second-stage refined oils, waste engine oil, diesel fuel produced through various processes, as well as oils that cannot be cleaned using conventional methods. 3. It saves labor and time, significantly improving the efficiency of oil washing; moreover, no heating or pressurization is required, making the operation convenient and fast. Using a decolorizing deodorizing agent for oil cleaning increases efficiency by 2–3 times compared to the traditional methods; it saves time and solves the problem of poor separation at low temperatures associated with traditional cleaning methods, allowing for year-round processing and production. 4. It solves the problem of waste disposal; the waste residue washed with this agent does not stick together, form clumps, or solidify, allowing for the reuse of such waste. At least it can fetch a higher price than the waste residue produced by old processing methods, and it also helps address environmental issues. V. Usage: Add the decolorizing agent to the filter, and allow the black diesel to pass through a certain height of this decolorizing agent; chemical reactions and adsorption processes then enable the decolorization of the black oil. The amount of decolorizing agent used is 2-4 times the diameter of the filter, with a pressure of 1-2 kilograms. When the ratio of the amount of decolorizing agent to the filter diameter is 1:1, flow can occur under normal pressure (the amount of decolorizing agent depends on the depth of color in the oil). Note: Samples can be sent to users free of charge, equipment drawings are provided, and on-site design and processing solutions are offered free of charge as well. Contact Information: Company: Lianyungang ChaoNeng Petroleum Additives Co., Ltd. Address: Room 708, Building A, Longhe Tower, No. 6 Cangwu Road, Lianyungang City. Contact person: Jiang Qian. Telephone: 0518-5177000. Fax: E-Mail: Leave a message for this company >>> Website: www.cnoiladd.cn

The root cause of the unusual odor and color in diesel lies in the presence of non-metallic heteroatom compounds such as nitrogen, sulfur, and oxygen, as well as metal impurities in it. To remove these substances, hydrogenation refining is the most widely used method in industry today. Diesel that has undergone hydrogenation not only has better stability but also exhibits greater resistance to photochemical effects, along with no unpleasant odor.

It can be treated with diesel refining agents to lighten its color, but I’m not sure whether that can also remove the odor

Diesel stabilizing refining fluid is available; detailed information can be provided during a face-to-face discussion. Hebei Cangzhou 15031768711