For keeping tank pressure in design range, some of boil off gas need to be released form tank through boil off gas treatment system in order to control tank pressure.

而大型储罐的承压能力是较低的，为了保证储罐内的压力在设计允许范围内，需要通过蒸发气处理系统排出部分蒸发气以控制罐内压力。

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The paper describes the fundamental principle of acid-making off-gas treatment by ammonia-acid method and its application in Yunnan Copper.

介绍了氨-酸法处理制酸尾气的基本原理以及在云南铜业股份有限公司的运用实践。

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Each system is designed to meet site specific needs and can be fully integrated with activated carbon and thermal oxidation systems off-gas treatment systems.

每个系统的设计可满足特定需求，它们可以与活性炭和热氧化系统烟气处理系统一起使用。

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Each LNG In A Box unit is fully equipped with a gas pre-treatment system, cold box assembly and boil off gas compressor as well as a GE's turboexpander compressor, high-speed reciprocating compressor, electric motor, driver and control system.

WSJ: GE Unveils LNG In A Box(TM) System; Gasfin Selects New Technology for Fueling Stations in Europe

Using so-called anaerobic digestion, ExoGen aims to make wastewater treatment for industry and agriculture much more efficient by creating a significant amount of energy throwing off electrons and methane gas during the treatment process that partially offsets the energy required to treat the wastewater.

FORBES: Will Cambrian Innovation Revolutionize Waste Water Treatment?

Microturbines can run on natural gas as well as other fuels, including kerosene and the methane given off by landfills and sewage-treatment plants.

FORBES: The Revolution That Wasn't--Yet