Boilers for Chemical Industry – Steam, Hot Water, Thermal Oil, and Waste Heat Solutions for Safe and Efficient Production

Chemical Industry

In the chemical industry, boilers are indispensable equipment whose main function is to provide high-quality, high-calorie steam as a heat and power source for the production process. According to different needs and applications, the chemical industry usually uses many types of boilers, including Steam Boilers, Hot Water Boilers, Thermal Oil Boiler and so on.

Chemical Industry Boilers

Boiler types and their applications

Steam boilers are widely used in various chemical types such as fertilizer plants, oil refineries, feed plants, coating plants and plastics plants. They are mainly used in chemical reactions to generate other chemical products such as methanol, acetic acid etc.

Gas Fired Boilers are gradually becoming the mainstream choice due to their high thermal efficiency and low NOx emissions.

Biomass Boilers are suitable for enterprises that require renewable energy and can effectively reduce energy consumption and carbon emissions. Routine maintenance requires regular cleaning of the furnace, flue and ash to maintain high efficiency.

Waste heat boilers utilize waste heat from flue gas for reuse, reducing energy waste. However, it also faces problems such as secondary reaction of flue gas, ash accumulation and wear and tear

Generally, chemical production has low pressure requirements, boiler design pressure in 1.25MPa could meet the requirement. The steam in the chemical plant is mainly from the boilers of the own plant or the centralized heat supply station of the park, and mainly from the waste heat recovery system or the exhaust gas incineration system. According to the actual needs and environmental protection requirements of customers, Bidragon boiler provides customized heating solutions for chemical plants at home and abroad to provide the most suitable boiler heating system.

Boiler selection

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How to choose the right boiler for Chemical industry

1.Determine Boiler Capacity

Determine the capacity of the boiler. The boiler capacity should based on the Heating Load Curve or Heat Balance Diagram, and includes the heat loss in pipelines, self-used heat of boiler room, available used waste heat. While, usually, it is difficult to get the Heating Load Curve, the heating load could get based on the max thermal consumption per hour within production/heating/domestic, and then determine by using the coefficient.

2. Determine Heating Parameter

The heating parameters of boiler room should be in accordance with the requirements of users' heat parameters. But in the choice of boiler, should not make the boiler rated outlet pressure and temperature and user use pressure and temperature difference too large, so as not to cause high investment, low thermal efficiency.

3. Determine Combustion Mode

At present, the main tendency of power boiler selection in small and medium-sized chemical enterprises is circulating fluidized bed boiler. In engineering practice, it is a reasonable criterion to select the combustion mode according to the fuel characteristics and the furnace type, in addition to the selection of capacity and parameters.

4. Determine Boiler Efficiency

Boiler should be more efficient. The boiler output, the number of sets and other performance can adapt to the demand of heat load change, in order to facilitate economic management. If the use of one boiler operating at full load can meet the demand for steam, it is not appropriate to use two boilers operating under lower load. However, from the perspective of safety production, it is necessary to consider whether a single boiler in operation can be started quickly in a short time due to failure, so as to meet heating requirements without affecting production.

5. Capacity and Model

It is better to select the boilers with same capacity or combustion equipment. If different, the max limitation is two models, to decrease the problems of equipment layout and management.